N111HQ

Part: SHEAR TIE — DAMAGED (FRM 22 S29L) · airframe 38,014 hrs · 29,139 cycles

FWD CARGO FRAME 22, CENTER FLOOR PANEL SUPPORT SHEAR CLIP STGR 29L FOR PILOTS AILERON CABLE FAIRLEADS HAVE MOUNT HOLES ELONGATED. REMOVED AND REPLACED SHEAR CLIP AND REINFORCEMENT AT FR 22 STR 29L REF EMB SRM 51-40-08.

Part: SHEAR TIE — DAMAGED (FRM 22 S29R) · airframe 38,014 hrs · 29,139 cycles

FWD CARGO FRAME 22, CENTER FLOOR PANEL SUPPORT SHEAR CLIP STGR 29R FOR PILOTS AILERON CABLE FAIRLEADS HAVE MOUNT HOLES ELONGATED. REMOVED AND REPLACED SHEAR CLIP AT FR 22 STR 29R REF EMB SRM 51-40-08.

Part: POWER SUPPLY — FAULTY (MAU 3A) · airframe 37,780 hrs · 28,965 cycles

AVNX MAU 3A FAIL. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. R&R MAU 3 POWER SUPPLY 1. R&R NIC PROC 5.

Part: SKIN PANEL — DAMAGED (ZONE 200) · airframe 37,339 hrs · 28,642 cycles

LIGHTNING STRIKE DAMAGE ON 2 FASTENERS STR 1L-1R FWD OF SKIN SPLICE ON 3RD ROW FR 34. REMOVED LIGHTNING STRIKE DAMAGE FR 34 SKIN SPLICE BETWEEN STRG. 1L -1R, BY REMOVE AND REPLACING RIVET IN AREA 1 FREEZE PLUG BUSHING PER ETD2023--170-032829 REV.:B.

Part: SKIN — BURNED (ZONE 200) · airframe 37,339 hrs · 28,642 cycles

LIGHTNING STRIKE DAMAGE ON FASTENER ON FR 32 BETWEEN STR 1L-1R. : REMOVED LIGHTNING STRIKE DAMAGE ON FASTENER ON FR 32 BETWEEN STR 1L-1R BY INSTALLING FREEZE PLUG REF EMB 175 SRM 53-00-00 REPAIR 03P.

Part: SKIN — DAMAGED (UNKNOWN) · airframe 37,339 hrs · 28,642 cycles

LIGHTNING STRIKE DAMAGE ON FASTENER ON STR 1L BETWEEN FR 28-29. REMOVED LIGHTNING STRIKE DAMAGE ON FASTENER ON STR 1L BETWEEN FR 28-29 AND INSTALLED FREEZE PLUG REF EMB 175 53-00-00/REPAIR 03P.

Part: SKIN PANEL — DAMAGED (ZONE 200) · airframe 37,339 hrs · 28,642 cycles

30+ TOTAL LIGHTNING STRIKE DAMAGE IN BAY FR 18-19 AND STR 27-28R. REPAIRED LIGHTNING STRIKE DAMAGEAT FRAME 18-21 STRINGER 27L-27R WITH DOUBLER TRIPLER,FILLER REPAIR IAW WITH ETD2023-170-032470 REV.: A

Part: SKIN — DAMAGED (ZONE 200) · 28,642 cycles

"LIGHTNING STRIKE DAMAGE ON SKIN EDGE NEXT TO GPS ANTENNA. A FR 43-45, STR1L-STR 1R WITH DOUBLER ,FILLER REPAIR IAW WITH IAW EMB 175 SRM 53-22-01 REPAIR 11P"

Part: INTERCOSTAL — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

CORROSION FOUND ON MID INTERCOSTAL ON WASTE DOOR. REPLACED INTERCOSTAL PN 170-87576-001 IAW SRM 51-41-01

Part: SEAT TRACK — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

FWD FUSE, FWD RH IB SEAT TRACK FIUND CORRODED. REPLACED SEAT TRACK PM 170-03263-001 IAW SRM 51-41-01, 51-41-02

Part: SHEAR TIE — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

CORRODED SHEAR PANEL FOUND ON FWD FUSE FR19-20 LBL13-34. REPLACED SHEAR PANEL PN 170-07311-003 IAW SRM 51-41-02, 51-43-04.

Part: SUPPORT — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

CORRODED FLOOR SUPPORT FITTING FOUND ON FWD FUSE FR16 LBL47. REPLACED SUPPORT PN 170-13633-003 IAW SRM 51-43-03

Part: CROSSBEAM — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

CORROSION FOUND ON UPPER FLANGE CROSSBEAM FWD FUSE FR 17 LBL9-RBL9. REPAIRED CROSSBEAM PN BAC1505-100703 IAW SRM 53-00-10, REP3

Part: FLOOR SUPPORT — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

CORRODED FLOOR SUPPORT BEAM FOUND ON FWD FUSE FR17-18 RBL 14. REPLACED BEAM PN 170-07304-002 IAW SRM 51-41-02, 51-43-03, 51-45-04.

Part: SHEAR PANEL — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

CORRODED SHEAR PANEL FOUND ON FWD FUSE FR13-16 LBL13-34.REPLACED SHEAR PANEL PN 170-12118-001 IAW SRM 51-41-02 IAW SRM 51-41-02

Part: SEAT TRACK — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

CF3 AFT RH SEAT TRAXK FOUND CORRODED BEYONE LIMITS. RPLACED SEAT TRACK PN 170-860852-005 IAW SRM 51-43-01

Part: SKIN — DENTED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

****MAJOR**** FWD FUSE SKIN HAS 2 DENTS FR 13-14 STR 15L-17L.REPAIRED IN W ETD2015-170-062712 REV D****MAJOR*****

Part: SHEAR PANEL — CORRODED (ZONE 100) · corrosion level 2 · airframe 40,730 hrs · 30,927 cycles

CORRODED MID SHEAR PLATE FOUND ON CF3 FR87-88 BL0. REPLACED SHEAR PNL PN 170-65928-001 IAW SRM 51-42-01.

Part: SENSOR — FAULTED (LT WING TE FLAP) · airframe 35,274 hrs · 27,158 cycles

FLAP FAIL ON DESCENT. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. R&R LH FLAP SKEW SENSORS 3 AND 4.

Part: BEAM — CORRODED (ZONE 100) · corrosion level 2 · airframe 35,159 hrs · 27,079 cycles

PASSENGER CABIN FLOOR STRUCTURE FR 14 CROSSBEAM HAS 3 AREAS OF CORROSION AT RH OUTBOARD SIDE.REPAIRED PASSENGER CABIN FLOOR STRUCTURE FR 14 CROSSBEAM AS REQUIRED AT RH OUTBOARD SIDE REF SRM 53-00-10/REPAIR 03P REF TO WIP# 1-24 AND TASK # 1-4 FOR WORK ACCOMPLISHED

Part: BEAM — CORRODED (ZONE 100) · corrosion level 2 · airframe 35,159 hrs · 27,079 cycles

4 CROSSBEAM IS CORRODED IN TWO LOCATIONS OUTBOARD OF RH SEAT TRACK BEAM AS MARK CUT OUT DAMAGE, FABRICATED AND INSTALLED 'L'' ANGLE REPAIR AT CROSSBEAM FRAME 84 OUTBOARD OF RH SEAT TRACK BEAM REFER ETD2021-170-036002. RESTORED SURFACE PROTECTION TO REWORKED AREA REFER ETD2021-170-036002 AND SRM 51-23-06 AND CMP 51-25-00

Part: BEAM — CORRODED (ZONE 100) · corrosion level 2 · airframe 35,159 hrs · 27,079 cycles

FR 17 CROSSBEAM HAS SEVERAL AREAS OF CORROSION INBOARD AND OUTBOARD OF RH SEAT TRACK BEAM. REPAIRED CROSSBEAM FRAME 17 INBOARD AND OUTBOARD OF RH SEAT TRACK BEAM REFER SRM 53-00-10/REPAIR 03P. RESTORED SURFACE PROTECTION TO REWORKED AREA REFER SRM 51-23-06, CPM 51-25-00

Part: NONE — NONE (ZONE 500) · airframe 35,099 hrs · 27,034 cycles

SLAT FAIL, SUSPECTED BIRD STRIKE. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. PERFORMED BID STRIKE INSPECTION, FOUND DAMAGE TO LH WING INBD EDGE OF #4 SLAT. R&R LH WING SLAT #4 PANEL.

Part: FLAP SYSTEM — FAULTED · airframe 34,034 hrs · 26,216 cycles

FLAP FAIL ON APPROACH. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. CLEARED INHIBITS. MESSAGE CLEARED. PERFORMED OPS CHECK, OPS CHECK GOOD. FOUND TO BE TRANSITORY PER FIM 27-50-00-810-803.

Part: SLIDE — PARTIAL DEPLOY (L1 DOOR) · airframe 29,983 hrs · 23,340 cycles

L1 SLIDE PARTIALLY DEPLOYED. R&R L1 SLIDE ASSY IAW AMM 25-65-01.

Part: LEVER — DIRTY (R2 DOOR ARMING) · airframe 29,973 hrs · 23,332 cycles

R2 ARMING LEVER IS STILL TO ARM AND DISARM. CLEANED R2 ARM LEVER MECHANISM AND PERFORMED OPERATIONAL CHECK. OPS CHECK SATISFACTORY.

Part: SEAL REST — CORRODED (L2 DOORWAY) · corrosion level 2 · airframe 29,969 hrs · 23,329 cycles

DURING HEAVY CHECK, CORROSION FOUND AT AFT LOWER CORNER SEAL REST OF AFT L2 DOOR CUTOUT. REPLACED AFT PAX DOOR AFT LOWER CORNER SEAL REST IAW SRM 51-43-03 AND 51-43-04.

Part: SEAL REST — CORRODED (L2 DOORWAY) · corrosion level 2 · airframe 29,969 hrs · 23,329 cycles

DURING HEAVY CHECK, CORROSION FOUND AT MIDDLE LOWER SEAL REST OF THE L2 DOOR CUTOUT. REPLACED AFT PAX DOOR MIDDLE LOWER SEAL REST IAW SRM 51-41-01.

Part: FLOOR SUPPORT — CRACKED (FRAME 12) · airframe 29,969 hrs · 23,329 cycles

DURING HEAVY CHECK, MAINTENANCE REPORTED A CRACK AT THE FLOOR STRUCTURE ON THE ANGLE AT FR 12 AND LBL 30. MAINTENANCE REMOVED AND REPLACED THE ANGLE AT THE FLOOR STRUCTURE AT FR 12 AND LBL 30 IAW EMBRAER SRM 51-41-01.

Part: ANGLE — CRACKED (FRAME 12) · airframe 29,969 hrs · 23,329 cycles

DURING HEAVY CHECK, MAINTENANCE REPORTED A CRACK ON THE ANGLE UNDER THE FLOOR STRUCTURE AT FR 12 AT BL 0. MAINTENANCE REMOVED AND REPLACED THE ANGLE UNDER THE FLOOR STRUCTURE AT FR 12 AT BL 0 IAW EMBRAER SRM 51-41-01.

Part: FLOOR SUPPORT — CORRODED (FRAMES 88-90) · corrosion level 2 · airframe 29,969 hrs · 23,329 cycles

CORROSION FOUND AT PANEL SUPPORT BETWEEN FRAME 88-90 AND RBL 36 IN CENTER FUSELAGE III PAX FLOOR STRUCTURE. PANEL SUPPORT REPLACED IAW SRM 51-43-03.

Part: SPLICE PLATE — CORRODED (FRAMES 87-88) · corrosion level 2 · airframe 29,969 hrs · 23,329 cycles

DURING HEAVY CHECK, MAINTENANCE REPORTED LEVE 2 CORROSION ON CENTER FUSELAGE III PASSENGER FLOOR STRUCTURE AT SPLICE PLATE BETWEEN FR 87-88 AND LBL 36 AREA. MAINTENANCE REMOVED AND REPLACED THE SPLICE PLATE BETWEEN FR 87-88 AND LBL 36 AREA ON CENTER FUSELAGE III PASSENGER FLOOR STRUCTURE IAW EMBRAER SRM 51-42-04. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.

Part: SHEAR PANEL — CORRODED (FRAMES 87-88) · corrosion level 2 · airframe 29,969 hrs · 23,329 cycles

DURING HEAVY CHECK, CORROSION FOUND AT RT SHEAR PANEL BETWEEN FR 87-88 AND BETWEEN RBL 12-36. REPLACED SHEAR PANEL IAW SRM 51-42-01, 51-42-03 AND 51-42-04.

Part: DOOR SILL — CORRODED (L1 DOORWAY) · corrosion level 2 · airframe 29,969 hrs · 23,329 cycles

CORROSION FOUND AT L1 DOOR CUTOUT LOWER MAIN SILL. REPLACED LOWER MAIN SILL BEAM IAW SRM 51-43-03, 51-43-04, 51-41-01.

Part: SENSOR — OUT OF ADJUST (L1 DOOR) · airframe 28,562 hrs · 22,349 cycles

EICAS SHOWS FWD PAX DOOR, L1 SHOWS OPEN IN FLIGHT. DECLARED EMERGENCY, RETURNED TO FIELD, LANDED WITHOUT INCIDENT. ADJUSTED GAP FWD PASSENGER DOOR SENSOR IAW AMM 52-72-20. ADJUSTED DOOR AFT GREEN VISUAL INDICATOR IAW AMM 52-11-00-820-801A. OPS CHECK GOOD.

Part: CONTROL VALVE — FAILED (BRAKES) · airframe 27,554 hrs · 21,602 cycles

LEFT BRAKE FAULT AT GEAR EXTENSION. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. R & R THE NR 1 BRAKE CONTROL VALVE IAW AMM 32-41-09, AND FIM 32-41-00-810-823-A.

Part: PRESSURE SWITCH — MALFUNCTIONED (PARKING BRAKE) · airframe 26,768 hrs · 20,973 cycles

PARKING BRAKE NOT RELEASED INDICATED DURING FLIGHT. DIVERTED, AND DECLARED EMERGENCY. R & R THE NR 2 HYD SYS EMERGENCY PARKING BRAKE PRESSURE SWITCH IAW AMM 32-44-09, OPS CHECKED GOOD.

Part: CHAIN — DIRTY (PAX DOOR) · airframe 26,421 hrs · 20,712 cycles

MAIN CABIN DOOR IS HARD TO OPEN. CLEANED DIRT AND LINT FROM DOOR HINGE CHAIN IAW CM 52-11-22. OPS CHECK GOOD.

Part: SLIDE — DETACHED (L1 DOOR) · airframe 26,382 hrs · 20,681 cycles

L1 DOOR EMERGENCY SLIDE FELL OFF WHILE OPENING FROM OUTSIDE. R & R THE L2 DOOR FLEXBALL CABLE, L2 DOOR SLIDE, AND L2 DOOR SHEAR PIN AND DIAPHRAGM.

Part: DAMPER — DIRTY (R2 DOOR) · airframe 24,781 hrs · 19,431 cycles

R2 'ARM' LATCH DIFFICULT TO ENGAGE. CLEANED AND RE-TORQUED R2 GIRT BAR DAMPER IAW AMM 52-42-52. OPS CHECK GOOD.

Part: GIRT BAR — OUT OF RIG (R2 DOOR) · airframe 24,786 hrs · 19,435 cycles

R2 DOOR HARD TO ARM AND DISARM. FOUND CIC ON TOP CENTER INDICATOR SLIDER. R & R THE SLIDE ARM CABLE AND RIGGED DOR TO GIRT BAR HEIGHT TO FLOOR DIMENSION.

Part: GIRT BAR — LACK OF LUBE (R2 DOOR) · airframe 24,779 hrs · 19,429 cycles

R2 DOOR SLIDE WILL NOT ARM. HANDLE SEEMS TO BIND. CLEANED AND LUBED THE AFT RT SERVICE DOOR GIRT BAR IAW AMM 52-42-41. OPERATIONAL CHECKED GOOD.

Part: GIRT BAR — DIRTY (R2 DOOR) · airframe 24,739 hrs · 19,404 cycles

AFT FA REPORDED THE R2 DOOR DIFFICULT TO DISARM. FEELS STICKY AND MORE FORCE THAN NORMAL REQUIRED. CLEANED AND LUBED THE R2 DOOR GIRT BAR IAW AMM 52-42-41.

Part: CABLE — DIRTY (R2 DOOR) · airframe 24,679 hrs · 19,356 cycles

R2 SERVICE DOOR REPORTED VERY DIFFICULT TO ARM. CLEANED DEBRIS FROM CABLE ON R2 DOOR IAW AMM 52-42-00. OPS GOOD.

Part: SEAT TRACK — CORRODED (FUSELAGE) · corrosion level 2 · airframe 24,651 hrs · 19,341 cycles

DURING HEAVY CHECK, RT OUTBD SEAT TRACK AT CENTER FUSELAGE 3 BETWEEN FR 78-79 DAMAGE AS MARK P/N 170-65917-006. REMOVED AND REPLACED RT OUTBOARD SEAT TRACK AT CFIII REF SRM 51-41-01 AND 51-43-03.

Part: SHEAR PANEL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 24,651 hrs · 19,341 cycles

DURING HEAVY MX CHECK. AFT WET AREA CENTER SHEAR PANEL CORRODED AS MARKED BETWEEN FR 87-88. REMOVED AND REPLACED CENTER SHEAR PNL REF SRM 51-40-02,51-42-01.

Part: BEAM — CORRODED (FUSELAGE) · corrosion level 2 · airframe 24,651 hrs · 19,341 cycles

DURNING HEAVY MX CHECK, CORROSION AROUND FWD AND AFT GIRT FITTING SPOTFACE AND ONE AREA OUTSIDE THE AFT GIRT BAR FITTING AS MARKED. REMOVED AND REPLACED AFT SERVICE DOOR LOWER THRESHOLD BEAM IN REF TO SRM 51-41-01, SRM 51-43-01,02.

Part: SPLICE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 24,651 hrs · 19,341 cycles

DURING HEAVY MX CHECK, LT OUTBD FLOOR SPLICE CORRODED AS MARKED FR 19. REMOVED AND REPLACED CORRODED LT OUTBD FLOOR SPLICE AT FR 19 REF SRM 51-40-02 51-41-02, 51-21-00 AND 51-45-00. RESTORED SURFACE PROTECTION REF SRM 51-23-04 , 51-23-05 AND 51- 23-06.221783

Part: DOOR SILL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 24,651 hrs · 19,341 cycles

DURING HEAVY MX CK, FWD RT FLOOR SILL CORRODED AND HAS ELONGATED HOLES AS MARKED FR 13-14 STR 17R. REMOVED AND REPLACED FWD RT SILL PANEL FR 12-14 AND APPLIED SURFACE PROTECTION REF SRM 51-12-01, 51-41-02, 51-43-04, 51-23-04, 51-40-02, 51-23-06.

Part: FRAME — DAMAGED (FUSELAGE) · airframe 24,651 hrs · 19,341 cycles

DURING HEAVY MAINTENANCE, ARC DAMAGE FROM LHCBP THAT CONTACTED FR10 BETWEEN STR 12L AND 13L. CUT-OUT AND FORMED L SHAPED ANGLE REPAIR WITHOUT A FILLER PER ETD2017-170-024953-A

Part: INDICATOR — DEFECTIVE (L2 DOOR) · airframe 24,220 hrs · 19,013 cycles

CREW REPORTED THAT THE L2 DOOR LOCK VISUAL INDICATOR WAS NOT SHOWING GREEN. MAINTENANCE PLACED ON MEL AND ACFT IS GOOD FOR SERVICE. MAINTENANCE REMOVED AND REPLACED VISUAL INDICATOR PER EMB AMM AND OPS CHECKED GOOD.

Part: MAU — MALFUNCTIONED (NR 1) · airframe 22,015 hrs · 17,378 cycles

CREW RECEIVED A ANVX MAU 1B FAIL MESSAGE ALONG WITH A SPOILER FAULT MESSAGE. CREW RAN QRH AND CONTACTED MAINTENANCE. CREW DECLARED AN EMERGENCY AND LANDED AT DCA WITHOUT INCIDENT. MAINTENANCE RESET MAU 1 AND PERFORMED RETURN TO SERVICE TEST IAW AMM AND OPS CHECKED GOOD.

Part: WARNING MESSAGE — ACTIVATED · airframe 21,571 hrs · 17,021 cycles

CREW RECEIVED A MAU 1B FAIL MESSAGE. CREW RAN QRH AND DECLARED AN EMERGENCY. LANDED WITHOUT INCIDENT. MAINTENANCE DID A POWER RESET IAW AMM AND FAULT CLEARED. ACFT IS GOOD FOR SERVICE.

Part: DOOR FRAME — DAMAGED (FRAME 27) · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, FWD CARGO DOOR FRAME 27 DAMAGED HOLE AFT SIDE OF CARGO DOOR BEAM. MAINTENANCE REAMED HOLE IAW ETD2015-170-047841, INSTALLED REPAIR BUSHING IAW ETD2015-170-047841.

Part: BEAM — DAMAGED (FRAME 27) · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, FWD LOWER CARGO DOOR BEAM AT FRAME 27 HAS ONE SHEAR LOCK. MX REPLACED FWD LOWER CARGO DOOR BEAM IAW SRM 51-40-02, 51-23-04,51-43-01, AND 53-43-02,

Part: GUSSET — CORRODED (ZONE 100) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, CROSSBEAM ASSY GUSSET AT FRAME 12 IS CORRODED. MX R & R CROSSBEAM ASSY GUSSET AT FRAME 12 IAW SRM 51-41-01.

Part: GUSSET — CORRODED (ZONE 100) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, CROSSBEAM ASSY GUSSET AT FRAME 11 IS CORRODED. MAINTENANCE R & R CROSSBEAM ASSY GUSSET AT FRAME 11 IAW SRM 51-41-02, PN 170-13808-001, GUSSET. ACFT REMAINS UNTIL HEAVY CHECK IS COMPLETED.

Part: FRAME — CORRODED (ZONE 500) · corrosion level 2 · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, PANEL 523BB BEARING AREA OF FRAME 1 HAS CORROSION. MAINTENANCE R & R THE FRAME IAW SRM 51-43-04.

Part: BEAM — CORRODED (CARGO BAY) · corrosion level 2 · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, FWD CARGO LOWER BEAM IS CORRODED. MAINTENANCE R & R, LOCATED AND DRILLED NEW HOLES, REINSTALLED IAW SRM 51-40-01, 51-23-06.

Part: HINGE — CORRODED (ACCESS PANEL) · corrosion level 2 · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, POTABLE WATER SERVICE ACCESS PANEL HINGE HALF IS CORRODED. MAINTENANCE R & R THE HINGE IAW AMM 53-03-62.

Part: SEAL REST — CORRODED (ZONE 800) · corrosion level 2 · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, FWD CARGO AFT CORNER SEAL REST IS CORRODED. MAINTENANCE R & R FWD CARGO AFT CORNER SEAL REST IAW SRM 51-23-04, 51-40-02, 20-10-01.

Part: SEAL REST — CORRODED (ZONE 800) · corrosion level 2 · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, FWD CARGO FWD CORNER SEAL REST IS CORRODED AND GOUGED. MAINTENANCE R & R FWD CARGO FWD CORNER SEAL REST IAW SRM 51-23-04, 51-40-02,20-10-01.

Part: THRESHOLD — CORRODED (R2 DOORWAY) · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, R2 DOOR THRESHOLD AROUND RIVET HEAD OF GIRT BAR IS CORRODED. MAINTENANCE BLENDED IAW ETD 2015-170-046056.

Part: SEAT TRACK — CORRODED (FRAMES 12-20) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK LT FLOOR TRACK AT FRAME 12-20 IS CORRODED. MAINTENANCE R & R LT FLOOR TRACK AT FRAME 12-20 IAW SRM 175 51-41-01, 51-41-02, 51-43-03, 51-43-04. PN 170-03264-001 TRACK. ACFT REMAINS UNTIL HEAVY CHECK IS COMPLETED.

Part: UPPER SHEET — CORRODED (ZONE 200) · corrosion level 2 · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, UPPER SHEET HAS CORROSION AT RT 10.748, FRAMES 85 - 86. MX R & R UPPER SHEET IAW SRM 51-41-01, 51-43-03.

Part: SUPPORT — CORRODED (ZONE 100) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, RT PANEL SUPPORT FRAME 86-90 IS CORRODED. MAINTENANCE R & R RT PANEL SUPPORT FRAME 86-90 IAW SRM 51-42-01, 51-43-01.

Part: RETAINER — CORRODED (ZONE 100) · corrosion level 2 · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, WATER SERVICE RETAINERS HAVE CORROSION. MAINTENANCE R & R WATER SERVICE RETAINERS AND C/W SB 170-53-0095, WP H4605, SEQ 2582 FOR EO 170, EO -53-10-0020 FOR WORK DETAILS.

Part: SHEAR PLATE — CORRODED (FRAMES 87-88) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, RT SHEAR PLATE AT FRAME 87-88 HAS CORROSION. MAINTENANCE R & R THE SHEAR PLATE IAW SRM 51-21-00, 51-42-02.

Part: THRESHOLD — CORRODED (L2 DOORWAY) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, L2 DOOR THRESHOLD AROUND GIRT BAR RIVETS IS CORRODED. MAINTENANCE R & R L2 DOOR THRESHOLD BEAM IAW SRM 51-21-01, 51-43-03, 51-43-04, PN 170-65703-005. BEAM ACFT REMAINS UNTIL HEAVY CHECK IS COMPLETED.

Part: SHEAR PLATE — CORRODED (FRAMES 87-88) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, LT SHEAR PLATE FRAME 87-88 IS CORRODED. MAINTENANCE R & R THE SHEAR PLATE FRAME 87-88 IAW SRM 51-42-03, 51-21-00.

Part: STRUCTURE — CORRODED (FRAME 84) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, RT SILL FRAME 84 IS CORRODED. MX R & R RT SILL FRAME 84 IAW SRM 51-42-02,51-43-04.

Part: SEAT TRACK — CORRODED (FRAME 84) · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, LEFT SEAT TRACK, Y 10.748 FRAME 84 IS CORRODED. REPAIRED IAW ETD 2015-170-046056.

Part: BEAM — CORRODED (ZONE 100) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, RT BEAM Y=10.748, FRAMES 86-89 IS CORRODED. R & R THE BEAM IAW SRM 51-41-01, 51-43-03.

Part: UPPER SHEET — CORRODED (FRAMES 85-86) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, RT Y=10.748 UPPER SHEET FRAME 85-86 IS CORRODED. MX R & R RT Y=10.748 UPPER SHEET FRAME 85-86 IAW SRM 51-41-01, 51-43-03. PN 170-86101-001. SHEET ACFT REMAINS UNTIL HEAVY CHECK IS COMPLETED.

Part: SHEAR PLATE — CORRODED (FRAMES 87-88) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, CENTER SHEAR PLATE AT FRAME 87-88 IS CORRODED. MAINTENANCE R & R THE CENTER SHEAR PLATE IAW SRM 51-21-00, 51-42-01.

Part: GUSSET — CORRODED (FRAME 90) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, RT GUSSET PLATE AT FRAME 90 IS CORRODED. MAINTENANCE R & R GUSSET IAW SRM 51-43-02.

Part: THRESHOLD — CORRODED (L2 DOORWAY) · corrosion level 2 · airframe 21,629 hrs · 17,072 cycles

DURING HEAVY CHECK, L2 DOOR THRESHOLD AROUND GIRT BAR RIVETS ARE CORRODED. MX R & R THRESHOLD IAW SRM 51-21-01, 51-43-03, AND 51-43-04.

Part: GUSSET — CORRODED (FRAME 90) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK, RT GUSSET PLATE FRAME 90 IS CORRODED. R & R THE GUSSET PLATE IAW SRM 51-41-02, 51-40-02, 51-23-00.

Part: RETAINER — CORRODED (ZONE 100) · corrosion level 2 · airframe 21,189 hrs · 16,709 cycles

DURING HEAVY CHECK DISCOVERED WATER SERVICE RETAINERS ARE CORRODED. MAINTENANCE REMOVED CORRODED WATER SERVICE RETAINERS AND PERFORMED SB 170-53-0095.

Part: ENGINE — MALFUNCTIONED (NR 2) · airframe 20,322 hrs · 16,041 cycles

AT ABOUT 1000 FT, CREW REPORTED A LOUD NOISE COMING FROM THE NR 2 ENGINE. RECEIVED A NR 2 ENGINE CONTROL FAULT MESSAGE, RAN QRH AND PLACED THE NR 2 ENGINE IN IDLE, AT THAT POINT NOISE SUBSIDED. DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT.

Part: TRU — INOPERATIVE (NR 2) · airframe 20,227 hrs · 15,957 cycles

CREW RECEIVED A NR 2 DC BUSS OFF, TRU 2 FAIL, MAU 3B FAIL, MAU 2A FAIL, RAT ALT 2 FAIL AND FWD CVR/DVR FAIL. DECLARED AN EMERGENCY AND DIVERTED. LANDED WITHOUT INCIDENT. R & R THE NR 2 TRAMSFORMER RECTIFIER UNIT, AMM AND OPS CHECKED GOOD. ACFT IS GOOD FOR SERVICE.

Part: LIGHT — UNSECURE (CABIN) · airframe 20,199 hrs · 15,939 cycles

CREW REPORTED THAT THE EMERGENCY LIGHT STRIP AT SEAT 1D CAME UP. MAINTENANCE SECURED THE LIGHT STRIP IAW AMM AND OPS CHECKED GOOD.

Part: FLASHLIGHT — INOPERATIVE (COCKPIT) · airframe 20,102 hrs · 15,858 cycles

CREW REPORTED THAT THE CAPTAINS FLASHLIGHT WAS INOPERATIVE. MAINTENANCE R & R CAPTAIN`S FLASHLIGHT IAW AMM AND OPS CHECKED GOOD.

Part: FLASHLIGHT — INOPERATIVE (COCKPIT) · airframe 20,042 hrs · 15,811 cycles

CREW REPORTED THAT THE F/O FLASHLIGHT WAS INOPERATIVE. R & R THE FLASHLIGHT IAW AMM.

Part: FLASHLIGHT — INOPERATIVE (FWD CABIN) · airframe 19,976 hrs · 15,756 cycles

MAINTENANCE REPORTED THAT THE FORWARD F/A FLASHLIGHT WAS INOPERATIVE. MAINTENANCE R & R FORWARD F/A FLASHLIGHT IAW AMM AND OPS CHECKED GOOD.

Part: FLASHLIGHT — DIM (AFT CABIN) · airframe 19,069 hrs · 15,029 cycles

AFT FLASHLIGHT DIM. R & R AFT F/A FLASHLIGHT ASSY IAW AMM 33-51-01. OPS CHECKED GOOD.

Part: BATTERY PACK — WEAK (FLASHLIGHT) · airframe 19,069 hrs · 15,029 cycles

FORWARD F/A FLASHLIGHT DIM. REPLACED BATTERY IAW AMM 33-51-01. OPS CHECKED GOOD.

Part: FLASHLIGHT — INOPERATIVE (COCKPIT) · airframe 16,967 hrs · 13,432 cycles

CREW REPORTED CAPTAINS FLASHLIGHT WAS NOT WORKING. MX R & R FLASHLIGHT IAW AMM AND OPS CHECKED GOOD.

Part: RIB — CRACKED (HORIZONTAL STAB) · airframe 16,528 hrs · 13,103 cycles

DURING HEAVY CHECK, REPORTED SECOND INBD BRACKET ON LT HORIZONTAL STAB L/E CRACKED. MX REPAIRED RIB 5 ON LT HORZONTAL STAB L/E, PN 170-62334-001, RIB 5. ACFT REMAINS FOR COMPLETION OF HEAVY CHECK.

Part: BRACKET — CRACKED (ZONE 100) · airframe 16,258 hrs · 13,103 cycles

DURING HEAVY CHECK, FOUND AVIONICS COOLING HOSE SUPPORT, FWD OF FWD BULKHEAD AT FIRST POSITION RT OF CENTER HOSE CRADLE CRACKED. MX R & R HOSE CRADLE IAW SRM 51-40-01.

Part: BOLT — CORRODED (R2 DOOR SLIDE) · corrosion level 2 · airframe 16,528 hrs · 13,103 cycles

DURING HEAVY CHECK, FOUND THE R2 EMERGENCY EVACUATION SLIDE MOUNTING HARDWARE CORRODED. MX R & R CORRODED HARDWARE IAW AMM 52-42-4, PN NAS6604012. ACFT STILL REMAINS FOR COMPLETION OF CHECK.

Part: BOLT — CORRODED (L2 DOOR SLIDE) · corrosion level 2 · airframe 16,528 hrs · 13,103 cycles

DURING HEAVY CHECK, FOUND AFT PASSENGER L2 DOOR EMERGENCY EVACUATION SLIDE MOUNTING HARDWARE CORRODED. MX R & R CORRODED HARDWARE IAW AMM 52-12-40.

Part: BRACKET — CRACKED (A/C PACK DUCT) · airframe 16,528 hrs · 13,103 cycles

DURING HEAVY CHECK, FOUND LEFT PACK DUCT BRACKET CRACKED FWD OF LT PACK ASSY. MX R & R BRACKET IAW SRM 51-40-02, 51-40-01.

Part: PAN — CRACKED (CABIN SEAT) · airframe 16,528 hrs · 13,103 cycles

DURING HEAVY CHECK, FOUND PASSENGER SEAT PAN CRACKED. R & R SEAT PAN IAW SRM 51-42-01.

Part: BOLT — CORRODED (GIRT BAR) · corrosion level 2 · airframe 16,528 hrs · 13,103 cycles

WHILE ACFT WAS IN HEAVY CHECK FOUND L1 PASSENGER DOOR GIRT BAR HARDWARE CORRODED. MX R & R GIRT BAR HARDWARE IAW AMM 52-11-41, PN NAS6604-14, BOLT. ACFT REMAINS FOR COMPLETION OF CHECK.

Part: SERVICE PANEL — CORRODED (ZONE 100) · corrosion level 2 · airframe 16,528 hrs · 13,103 cycles

DURING HEAVY CHECK, FOUND LAVATORY SERVICE DOOR PANEL CORRODED AT HINGE. MX R & R LAVATORY SERVICE DOOR PANEL ASSY IAW AMM 20-10-01. APPLIED TOP COAT AND PLACARD IAW SRM 51-23-05, 51-23-05, 51-23-06 AND AMM 20-10-09, PN 170-86668-403. ACFT REMAINS FOR COMPLETION OF CHECK.

Part: BOLT — CORRODED (GIRT BAR) · corrosion level 2 · airframe 16,528 hrs · 13,103 cycles

WHILE ACFT WAS IN HEAVY CHECK, FOUND L2 PASSENGER DOOR GIRT BAR HARDWARE CORRODED. MX R & R GIRT BAR HARDWARE IAW AMM 52-12-41, PN NAS6604-14. ACFT STILL REMAINS FOR COMPLETION OF CHECK.

Part: HANDLE — LACK OF LUBE (R2 DOOR) · airframe 16,451 hrs · 13,040 cycles

CREW REPORTED THAT THE R2 DOOR HANDLE IS STICKING. MX APPLIED LUBE TO THE R2 DOOR HANDLE IAW AMM AND OPS CHECKED GOOD.

Part: DOOR — OUT OF ADJUST (CABIN) · airframe 16,042 hrs · 12,727 cycles

CREW REPORTED THAT THE L2 DOOR WILL NOT CLOSE OR ALIGN WITH AIRPLANE. MAINTENANCE ADJUSTED & INSPECTED DOOR PER EMB AMM AND OPS CHECKED GOOD.

Part: UNKNOWN — MALFUNCTIONED (EMERGENCY LIGHTS) · airframe 14,345 hrs · 11,437 cycles

CREW REPORTED CABIN AND CONTROL LIGHTS INCLUDING EMERGENCY RAINBOW LIGHTS ARE VERY DIM. MAINTENANCE RESET A/C POWER IAW EMB 175 MM CH 24-42-02. NO DEFECTS NOTED.

Part: HANDLE — LACK OF LUBE (R2 DOOR) · airframe 13,918 hrs · 11,104 cycles

R2 DOOR ARMING HANDLES DIFFICULT TO ARM/DISARM. MAINTENANCE LUBRICATED R2 DOOR ARMING HANDLE IAW EMB 175 CPM 175 CPM 51-27-02. OPS CHECK GOOD AT THIS TIME.

Part: BOLT — CORRODED (RT MLG) · corrosion level 2 · airframe 13,903 hrs · 11,090 cycles

WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE LOWER RIGHT LANDING GEAR SIDE BRACE BOLT CORRODED. MAINTENANCE REMOVED AND REPLACED THE LOWER RIGHT LANDING GEAR SIDE BRACE BOLT IAW EMB 175 AMM 32-11-05. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: BOLT — CORRODED (RT MLG) · corrosion level 2 · airframe 13,903 hrs · 11,090 cycles

WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE RIGHT MLG ACTUATOR BOLT CORRODED. MAINTENANCE REMOVED AND REPLACED THE RIGHT MLG ACTUATOR BOLT IAW EMB 175 AMM 32-31-01. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: SPAR — CRACKED (LT WING) · airframe 13,903 hrs · 11,090 cycles

WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND CRACK LIKE INDICATIONS ON THE A2 HOLE LEFT WING SPAR ACCOMPLISHING SB 170-57-0053. MAINTENANCE REMOVED CRACK A2 HOLE LEFT WING SPAR IAW EMB ETD 2012-170-011146-A REV A. CLASSIFIED AS MAJOR REPAIR. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: FITTING — CRACKED (FUSELAGE) · airframe 13,903 hrs · 11,090 cycles

WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE FLOOR SUPPORT CLIP CRACKED AT RIGHT FRAME 86. REMOVED AND REPLACED CLIP AT FRAME 86 IAW EMB 175 SRM 51-41-01. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: SEAT TRACK — CORRODED (FUSELAGE) · corrosion level 2 · airframe 13,903 hrs · 11,090 cycles

WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE UPPER LEFT SEAT TRACK FRAME 17 TO 19 CORRODED. MAINTENANCE REMOVED AND REPLACED THE UPPER LEFT SEAT TRACK FRAME 17 TO 19 IAW EMB 175 SRM 51-40-02, 51-41-01, AND 51-12-01. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: STRUT — DEFECTIVE (LT MLG) · airframe 13,160 hrs · 10,508 cycles

CREW REPORTED LG SYS WOW FAIL MSG AND LANDING GEAR WOULDN'T RETRACT AFTER TAKEOFF OUT OF CLT. CREW RETURNED TO FIELD AND EMERGENCY VEHICLES WERE DISPATCHED. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT PER EMB AMM, AND ACTIVATED NR 1 LT MLG STRUT SPARE SEAL, AND SERVICED STRUT, PER EMB AMM.

Part: PLATE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND CORROSION ON FRAME 90 RT PLATE FLOOR SUPPORT. MAINTENANCE REMOVED AND REPLACED GUSSET PLATE RT FLOOR SUPPORT ON FRAME 90 IAW EMB 170/175 SRM 51-41-02. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: TRIM PANEL — CORRODED (GALLEY) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND CORROSION ON AFT GALLEY FWD HALF MATING SURFACE. MAINTENANCE INSTALLED NEW TRIM ON AFT GALLEY FWD HALF MATING SURFACE IAW EMB 170 AMM 25-00-23. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK. P/N REMOVED AND REPLACED ARE 170-88787-001 TRIM, 170-59514-001 TRIM SPLIT JOINT, 170-88789-001 SPLIT TRIM JOINT AND CDS(2200-11 SPLIT JOINT BRACKET.

Part: PANEL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK MAINTENANCE FOUND CORROSION ON FRAME 88 CENTER FLOOR SUPPORT AROUND BOLT HOLES IN TWO SPOTS. MAINTENANCE REMOVED AND REPLACED FRAME 88 CENTER SHEAR PANEL IAW EMB 170/175 SRM 51-41-01 AND 51-42-01. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: BRACKET — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK MAINTENANCE FOUND CORROSION ON FRAME 86 CENTER RT FLOOR SUPPORT BRACKET. MAINTENANCE REMOVED AND REPLACED RT UPPER SHEET IAW EMB 170/175 SRM 51-41-01 AND 51-43-01. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: PLATE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK MAINTENANCE FOUND CORROSION ON FRAME 90 LT CENTER FLOOR SUPPORT PLATE. MAINTENANCE REMOVED AND REPLACED GUSSET PLATE LT CENTER FLOOR SUPPORT ON FRAME 90 IAW EMB 170/175 SRM 51-41-02. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: PANEL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK MAINTENANCE FOUND CORROSION ON FRAME 88 RT WEB AT BOLT HOLE. MAINTENANCE REMOVED AND REPLACED RT SHEAR PANEL FRAME 88 IAW EMB 170/175 SRM 51-42-01 AND 51-42-02. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: BEAM — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK MAINTENANCE FOUND CORROSION ON FLOOR SUPPORT CENTER RT BEAM FROM FRAME 85 TO 87. MAINTENANCE REMOVED AND REPLACED RT CENTER BEAM FROM FRAME 85 TO 87 IAW EMB 170/175 SRM 51-41-01 AND 51-43-01. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: STRUCTURE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK MAINTENANCE FOUND LT UPPER SHEET CORRODED AT FRAME 86. MAINTENANCE REMOVED AND REPLACED LT UPPER SHEET AT FRAME 86 IAW EMB 175 SRM 51-43-01 AND 51-41-01. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: PLATE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK MAINTENANCE FOUND CORROSION ON FRAME 90 LT FLOOR SUPPORT PLATE. MAINTENANCE REMOVED AND REPLACED GUSSET PLATE LT FLOOR SUPPORT IAW EMB 170/175 SRM 51-41-02. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: PLATE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND CORROSION ON FRAME 90 RT CENTER FLOOR SUPPORT PLATE. MAINTENANCE REMOVED AND REPLACED GUSSET PLATE RT CENTER FLOOR SUPPORT ON FRAME 90 IAW EMB 170/175 SRM 51-41-02. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: BEAM — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK MAINTENANCE FOUND CORROSION ON CENTER LT BEAM FLOOR SUPPORT FROM FR 85 TO 87. MAINTENANCE REMOVED AND REPLACED CENTER LT BEAM FROM FRAME 85 T0 87 IAW EMB 170/175 SRM 57-40-02, 51-41-01, AND 51-43-01. AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.

Part: STRUCTURE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 11,607 hrs · 9,274 cycles

WHILE A/C WAS IN FOR HEAVY CHECK FOUND FWD CARGO DOOR LOWER SILL METAL SCUFF PLATE NUT PLATES HAVE CORROSION ON THEM. MX REMOVED AND REPLACED FWD CARGO DOOR LOWER SEAL REST AND NUT PLATES. P/N 170-66804-401. A/C REMAINS IN CMH FOR HEAVY CHECK COMPLETION.

Part: LIGHT — MALFUNCTIONED (CABIN) · airframe 10,002 hrs · 8,007 cycles

CREW REPORTED BOTH CABIN RAINBOW PANELS DIDN'T LIGHT UP. MAINTENANCE PERFORMED POWER RESET AND PERFORMED OPS CHECKS PER EMB AMM, NO FAULTS FOUND AT THAT TIME.

Part: SENSOR — MALFUNCTIONED (LE SLAT) · airframe 9,586 hrs · 7,662 cycles

CREW REPORTED SLAT FAIL ON DESCENT AND DECLARED EMERGENCY BUT CABIN WAS NOT PREPARED, A/C LANDED UNEVENTFULLY. MX REPLACED LT 2/3 AND 3/4 SLAT SKEW SENSORS PER EMB AMM, OPS CHECK GOOD.