N521US

Part: SKIN — DAMAGED (BS 355-656) · airframe 82,056 hrs · 35,119 cycles

FUSELAGE SKIN HAS LIGHTNING STRIKES BS 355, S25L & BS 434 S24L & 452, 474, 508, 532 & 540 JUST ABOVE S24L, S23L AT BS 540, 546, 552, 556, 628, 630, 656, S22L AT BS 584 & 588. REMOVED FASTENERS AND C/W BHEC OF FASTENER HOLES IAW SRM 53-00-01. NO CRACKS FOUND REINSTALLED PERM FASTENERS REF SRM 53-00-01.

Part: SKIN — CRACKED (NACELLE) · airframe 81,695 hrs · 34,893 cycles

CRACK INDICATED ON INBD SKIN . CRACK APPROX .250" LONG AT FWD TOP AREA OF CUTOUT. ACCOMPLISHED DETAILED INSPECTION OF THE INBD SKIN IAW PRI 488100-14, REV B, PEV ORIG. NO FURTHER DAMAGE TRIMMED OUT DAMAGE IAW STEP 2 OF PRI 488100-14, REV B, REV ORIG HIGH FREQ EDDY CURRENT SURFACE SCAN INSPECT IAW NDT MANUAL D634N301, PART 6, 51-00-19. NO CRACKS ARE PRESENT IAW PRI 488100-14, REV B, REV 1, STEP 7 TRIMMED AND DRILLED DOUBLER. COMPLETED REPAIR IAW PRI 488100-14, REV B, REV 3.

Part: CHARGER — MALFUNCTIONED (EMERGENCY LIGHTS) · airframe 81,673 hrs · 34,874 cycles

ON SERVICE CHECK, FOUND EMERGENCY LIGHTS INOPERATIVE ON FLOOR FROM SEATS 33 TO 38 AND AFT LOWER DOOR EXIT LIGHTS. RESET POWER SUPPLY BATTERY CHARGER ALL LIGHTS CHECKED GOOD.

Part: SLIDE — DETACHED (L4 DOOR) · airframe 81,521 hrs · 34,769 cycles

L4 DOOR ESCAPE SLIDE FOUND DETACHED FROM LOWER HARNESS ATTACH POINT. INSTALLED SAFETY PINS IN ASSIST RESERVOIR & CYL.

Part: SOCKET — INOPERATIVE (EMERGENCY LIGHTS) · airframe 81,462 hrs · 34,729 cycles

EMERGENCY TRACK LIGHTING INOPERATIVE AT SEATS 21 AND 22. REPLACED TRACK LIGHTING SOCKETS. OPS CHECKED GOOD.

Part: BATTERY — INOPERATIVE (EMERGENCY LIGHT) · airframe 81,393 hrs · 34,677 cycles

OVERHEAD EMERGENCY LIGHT AT 2R INOPERATIVE. FOUND BATTERY AND CHARGER BAD. REPLACED BOTH BATTERY AND CHARGER IAW AMM 33-51-07. CK OK.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 81,107 hrs · 34,490 cycles

EMERGENCY TRACK LIGHT AT 21F INOPERATIVE. REPLACED LIGHT MODULE. OPS OK.

Part: SKIN — DAMAGED (FUSELAGE) · airframe 80,900 hrs · 34,388 cycles

FOA 2 INCH HOLE IN FUSELAGE BELOW AND AFT OF L4 DOOR THRESHOLD OPENED AFT CARGO. INSTALLED REPAIR DOUBLER PER ERA 506410-14 REV ORIG PRI INSTRUCTIONS MATCH ERA506410-14 REV ORIG REPAIR GOOD PER ERA CLOSED AFT CARGO BIN AFT BULKHEAD WALL COMPLETED ALL STEPS ON PRI 506410-14 REV 0,1 AND 2.

Part: BATTERY PACK — DISCHARGED (CABIN) · airframe 4,315 hrs · 2,425 cycles

DURING LINE CHECK MAINTENANCE FOUND AFT SECTION EMERGENCY EXIT LIGHTING & 4L-4R DOOR EXIT INOP. MAINTENANCE REPLACED BATTERY PACK PER AMM 33-51. LIGHTS NOW CHECK OK.

Part: DOOR — DAMAGED (R1) · airframe 4,315 hrs · 2,425 cycles

ON ARRIVAL AT GATE IN MSP CATERING REPORTED A DENT IN DOOR 1R. MAINTENANCE BLENDED TOP AND BOTTOM GOUGES OUT OF DENTS. TOP GOUGE WAS OUT OF LIMITS. DAMAGE WAS CUT OUT PER SRM 52-10-01. AREA WAS TREATED AND DOUBLER WAS INSTALLED PER SRM 52-10-01 REPAIR 7. AREA WAS SEALED AND PAINTED. REPAIR PLACED ON MONITOR.

Part: WIRE — BROKEN (CABIN) · airframe 4,161 hrs · 2,352 cycles

DURING LINE CHECK MAINTENANCE FOUND EMERGENCY FLOOR TRACK LIGHTS IN ROWS 21 AND 22 INOP. MAINTENANCE REPAIRED BROKEN WIRE FOR LIGHTS AT ROWS 21 & 22. OPERATION OF LIGHTS CHECK OK PER WDM 33-51-13.

Part: PANEL — CORRODED (CARGO BAY) · airframe 77,302 hrs · 32,235 cycles

AFT CARGO BETWEEN STA 1380 TO 1440 RBL 22 TO 25 TOP SURFACE OF SIDE PANEL HAS SEVERAL SPOT OF CORROSION AS MARKED. REMOVED CORROSION TOP & UNDERSIDE IAW SRM 51-10-02. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53 FIG 101. REMOVED FWD SPLICE OF TRANS PANEL. ANGLE SPLICE TO BE OUT OF LIMITS PER SRM 53-00-53, FIG 101. SPLICE FABBED ON STAM TRAVELER T11/876866. TRANS SIDE PNL FABBED ON STAM TRAVELER T11/876865 AND INSTALLED IAW SRM 51-40-02.

Part: SILL — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

AFT CARGO BETWEEN STA 1380 T0 1440 RBL 19 TO 25 UNDERNEATH OF DOOR SILL & SIDE PNL FASTENER & NUT PLATE HAS SURFACE CORROSION. BLENDED CORRODED AREAS ON LWR AREA OF DOOR SILL PER SRM 51-10-02. OUT OF LIMITS PER SRM 53-60-15 FIG 101. DOOR SILL REPLACED ON N/R 150/43. SIDE PANEL REPLACED ON N/R160/14. REMOVAL OF FASTENERS, NUT PLATES. INSTALL ACCOMPLISHED ON N/R 160/14.

Part: SILL — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

ON REMOVAL OF AFT CARGO DOOR SIDE PANEL FOUND CORROSION ON AFT CARGO DOOR SILL. BLENDED CORR AREAS PER SRM 51-10-02. OUT OF LIMITS IAW SRM 53-60-15 FIG 101. REMOVED AND REPLACED DOOR SILL T-CHORD IAW SRM 51-40-02 & SRM 51-40-05. SPLICE SIDE PNL AT STA1485. FABBED REPAIR SPLICE FOR STA 1485 IAW STAM TRAVELER T11/876949. INST SIDE PNL IAW SRM 51-40-02.

Part: FRAME — CORRODED (BS 1460 S29L/R) · airframe 77,302 hrs · 32,235 cycles

AFT CARGO COMPT FLOOR FRAME AT STA 1460 BILGE FROM S-29L- S-29R AS CORROSION. BLENDED CORRODED IAW SRM 53-00-07. OUT OF LIMITS IAW SRM 53-00-07, FIG 101. TRIMMED DAMAGED AREA IAW ER/A 490233-14, FIG 1. NO CRACKS, FABRICATED REPAIR PARTS IAW ER/A490233-14. INST REPAIR PARTS IAW ER/A 490233-14. C/W ER/A 490233-14 SECT I PERM REPAIR. SECT II REPAIR IS LIMITED TO 18 MONTHS SERVICE FROM 25 MAR 2011. REF LOG 0329926 RII.

Part: SUPPORT ANGLE — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

ANGLE SUPPORT AFT OF FRAME STN 1440 BETWEEN STR 27R AND S28R EXFOLIATED. REMOVED & INSTALLED NEW CLIP, P/N 146N8515-1, FABRICATED IAW STAM TR T11/876899, IAW SRM 51-40-02.

Part: STIFFENER — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

VERTICAL STIFFENER AT FRAME BS 1440 BETWEEN STR 27R AND 28R CORRODED NEAR AFT DOOR SILL. REMOVED & INSTALLED NEW CLIP, FABRICATED IAW STAM TRAVELER #T11/876864. P/N 146N5393-28 IAW SRM 51-40-02.

Part: DOUBLER — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

FWD CARGO COMPT STA 508 S-27R DOUBLER HAS SURFACE CORROSION AS MARKED. REMOVED CORRODED DOUBLER AND SHEAR TIE, RECEIVED NEW SHEAR TIE FABBED EXT REPAIR DOUBLER IAW SRM 53-00-01. LOCATED AND DRILLED NEW SHEAR TIE AND DOUBLER IAW SRM 51-40-05 TREATED & PRIMED IAW SRM 51-20-01. INSTALLED NEW SHEAR TIE AND REPAIR DOUBLER IAW SRM 51-40-05 & 53-00-01 FIG 201. DOUBLER INSTALLED IAW SRM 53-00-01.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

FLOOR SUPPORT AT BL 0 BETWEEN STN 1640 AND STN 1661 CORRODED AS MARKED. REMOVED CORR IAW SRM 51-10-02. ORIGINAL MAT THICKNESS=.050" OUT OF LIMITS IAW SRM 53-00-51. REMOVED FLOOR SUPPORT AND STIFFENER IAW SRM 51-40-02. FABBED NEW CHANNEL SUPPORT IAW DWG 146N5242 AND AMS 2770. LOCATED AND DRILLED NEW CHANNEL SUPPORT IAW SRM 51-40-05. INSTALLED NEW CHANNEL SUPPORT SUPPORT AND STIFFENER IAW SRM 51-40-02.

Part: FLOORBEAM — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

AT RBL 13 BET FLOORBEAM STA 365TO STA 377 BOX BEAM HAS CORROSION AS MARKED. REMOVED BOX BEAM IAW SRM 51-40-02, FABRICATED NEW BOX BEAM AND ANGLES PER DWG 141N5162. LOCATED AND DRILLED NEW PARTS IAW SRM 51-40-05, TREATED & PRIMED IAW SRM 51-20-01, TOP COATED IAW SRM 51-20-10. INSTALLED ALL PARTS IAW SRM 51-40-02 94EA.

Part: SILL — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

L4 DOOR SILL WEB AT STN 1660 EXFOLIATED. FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15 FIG 101. REMOVED, FABRICATED, AND INSTALLED NEW SILL WEB (CHANNEL) IAW SRM 51-40-02.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

R4 DOOR AFT FLOOR SUPPORT CORRODED AT MANY LOCATIONS AS MARKED. REMOVED, FABRICATED, AND INSTALLED IAW SRM 51-40-02.RETAIN FOR RECORDS.

Part: SILL — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

LT DOOR SILL WEB AT STN 1772 CORRODED AS MARKED. REMOVED, FABRICATED, AND INSTALLED CHANNEL IAW SRM 51-40-02.

Part: SILL — CORRODED (FUSELAGE) · airframe 2,252 hrs · 1,126 cycles

LT DOOR SILL WEB AT STN 1655 CORRODED AS MARKED. REMOVED, FABRICATED, AND INSTALLED CHANNEL IAW SRM 51-40-02.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

AFT CARGO COMPARTMENT FLOOR SUPPORT AT STA 1456-1483 RBL 13.0 HAS CORROSION. REMOVED AND INSTALLED FLOOR SUPPORT SPLICERS IAW SRM 51-40-02.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

R4 DOOR FWD FLOOR SUPPORT CORRODED AT MANY LOCATIONS AS MARKED. REMOVED, FABRICATED, AND INSTALLED NEW FLOOR SUPPORT AT R4 DOOR FWD SUPPORT IAW SRM 51-40-02.

Part: SILL — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

LT DOOR SILL WEB AT STN 1663 CORRODED AS MARKED. REMOVED, FABRICATED, AND INSTALLED CHANNEL IAW SRM 51-40-02.

Part: SUPPORT FITTING — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

CABIN AREA STA 700 NR 3 FROM FWD SCUFF PLATE SUPPORT FITTING AT L2 DOOR SILL HAS CORROSION AS MARKED. REMOVED CORROSION AT BRACKET. BRACKET FOUND TO BE OUT OF LIMITS IAW SRM 53-00-15 FIG 101 DETAIL IV (TR14295). REMOVED, FABRICATED, AND INSTALLED BRACKET IAW SRM 51-40-02.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

CABIN AREA BETWEEN STA 700 TO 740 LBL 64-50 FLOOR ANGLE SUPPORT HAS CORROSION. REMOVED CORROSION BETWEEN IAW SRM 51-10-02 ORIGINAL THICKNESS 0.080 L=.500" W=450" D=0.012 FOUND TO BE OUT OF LIMITS IAW SRM 53-00-15 FIG 101 DETAIL III, IV. REMOVED FLOOR 0002008470 P/N 143N8328U53. LOCATED AND DRILLED IAW SRM 51-4005. INSTALLED ANGLE SUPPORT IAW SRM 51-40-02.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

FLOORBEAM STA 365 AND BET BL 0 TO RBL 50, PREVIOUSLY REPAIRED FLOOR SUPPORT HAS CORROSION AS MARKED. REMOVED SURFACE CORROSION DEPTH TO BE .027 OUT OF LIMITS PER SRM 53-00-51 FIG 101. REPAIRED IAW SRM 53-00-51 FIG 201 R3. REMOVED REPAIR. FABBED T-CHORD BAC 1505-100880 ANGLES FABBED PER SRM 53-00-51 FIG 201 R3. INSTALLED T-CHORD REPAIR IAW SRM 53-00-51 FIG 201 R3. TOP COATED IAW AMM 51-21-01.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

BETWEEN FLOORBEAM STA 345 TO STA 365, LBL 25 FLOOR SUPPORT HAS CORROSION AS MARKED. BLENDED CORROSION PER SRM 51-10-02, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-04, FIG 101 DETAIL II. REM AND REP SHIM IAW SRM 51-40-02, 51-40-05 AND TRAVELERT11/873556, MAT 7075-T6-125C, BATCH 1947441.

Part: BOX BEAM — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

AT RBL 41 BET STA 324 TO STA 345 BOX BEAM HAS CORROSION AS MARKED. BLENDED AREA PER SRM 51-10-02, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51, FIG 101. REMOVED AND REPLACED BEAM BOX IAW SRM 51-40-02, SRM 51-40-05. PART FABRICATED ON TRAVELER T11/873823 MAT. BAC1508-238 P/N 141N5161-13, BATCH 0001962670.

Part: FLOORBEAM — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

AT LBL 62 BET FLOORBEAM STA 365 TO STA 377 BOX BEAM HAS CORROSION AS MARKED. REMOVED CORROSION, AFTER REWORK, DEPTH (.014) ORIGINAL MAT (.050) OUT OF LIMITS PER SRM 53-00-51, FIG 101 FABRICATED NEW BOX BEAM PER STAM TRAVELER T11/873094. INSTALLED BOX BEAM SUPPORT IAW SRM 51-40-02.

Part: FLOORBEAM — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

PREVIOUS REPAIR AT BS 1640 CORRODED AT 4 LOCATIONS BETWEEN LBL 15 AND LBL 60. REMOVED CORROSION AT STN 1640 FLOORBEAM PER SRM 51-10-02, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51 FIG 101. REMOVED AND REPLACED UPPER CHORD AT BS 1640 FROM LBL 64 TO LBL 15 IAW SRM 53-00-51 FIG 201 REPAIR 3 AND SRM 51-40-05.

Part: STRUCTURE — CORRODED (FUSELAGE) · airframe 77,302 hrs · 32,235 cycles

PREVIOUS REPAIR AT STN 1640 CORRODED AT 4 LOCATIONS BETWEEN LBL 15 AND RBL 60. BLENDED AREA PER SRM 51-10-02. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51 FIG 101. REMOVED AND REPLACED UPPER CHORD IAW SRM 53-00-51, REPAIR 3 FIGURE 201. REMOVED AND REPLACED 2EA SPLICES .071C IAW SRM 53-00-51 REPAIR 3, FABRICATED STRAPS PER SRM 51-40-05 PER SRM 53-00-51 FIG 201 REPAIR 3. INSTALLED STRAPS PER SRM 51-40-02. RONALD BIRD 462009. REQUIRED INSPECTION COMPLETED.

Part: SKIN — DENTED (BS 564) · airframe 82,926 hrs · 35,678 cycles

DURING CHECK, A DENT WAS FOUND COMMON TO THE S4R LAP SPLICE AT BS 564. THE DENTED AREA OF THE LAP WAS TRIMMED OUT AND REPAIRED IAW SECT I OF ER/A 13-488107-14. THE REPAIR IAW SECTION I IS APPROVED FOR 42,000 TOTAL ACFT CYCLES. OBTAIN STAGE 3 DTA APPROVAL OF THE SECTION I REPAIR PRIOR TO 42,000 TOTAL ACFT CYCLES OR REMOVE THE ACFT FROM REVENUE SERVICE ASSOCIATED ER/A 13-488107 ADDED FOR AC 5521, APPROVAL IS TIME LIMITED INSPECTION THRESHOLD IS 44000 TOTAL AIRFRAME.

Part: SKIN — DENTED (BS 610 S15-16L) · airframe 76,887 hrs · 31,994 cycles

DURING L-CK, DENTS WERE FOUND IN FUSELAGE SKIN AT STA 610 S-15L TO S16L. DENTS WERE CUT OUT AND EXTERNAL DOUBLER WAS INSTALLED. SECTION II PERMANENT REPAIR LIMITED TO 69,700 TOTAL ACFT CYCLES. ADDITIONAL ER/A REVISION REQUIRED FOR CONTINUED SERVICE OF THIS REPAIR BEYOND THRESHOLD OF 69,700. CONTACT ENGINEERING WITHIN 3000 CYCLES OF THRESHOLD ASSOCIATED ER/A 13-488096.

Part: SKIN — DAMAGED (TE FLAPS) · airframe 76,887 hrs · 31,994 cycles

REMOVED DAMAGED UPPER SKIN AND CORE, TAPER SANDED, FABRICATED NEW CORE SECTION, BONDED CORE SECTION AND REPAIR PLIES IAW SRM 51-70-07, PARA 4. FOUND MORE DELAMINATION ON UPPER SKIN. REMOVED DAMAGE, TAPER SANDED, BONDED REPAIR PLIES, AND APPLIED SEAL RESIN IAW SRM 51-70-07, PARA 4. APPLIED CONDUCTIVE COATING IAW AMM 51-24-02-377-001, PARA D APPLIED PRIMER ON REPAIR AREA OF RT/WING INBD MAIN FLAP T/E PANEL IAW AMM 51-21-10-377-003, TABLE 701.

Part: POWER SUPPLY — MALFUNCTIONED (EMERGENCY LIGHTS) · airframe 75,451 hrs · 31,238 cycles

DURING FLIGHT, F/A'S REPORTED EMERGENCY LIGHTS FWD OF DOOR 3 FLICKERING ON AND OFF. MX COULD NOT DUPLICATE AND CHANGED THE POWER SUPPLY. OPS CHECK WAS GOOD.

Part: WIRE — CHAFED (EMERGENCY LIGHTS) · airframe 75,451 hrs · 31,238 cycles

DURING CRUISE AND IN SMOOTH AIR, ALL CABIN EMERGENCY LIGHTS FLICKERED ON AND OFF. MX REPAIRED CHAFED WIRING NEAR DOOR 2L. OPS CHECK WAS GOOD.

Part: SWITCH — FAULTY (CABIN) · airframe 75,405 hrs · 31,224 cycles

FLIGHT CREW REPORTS THE CABIN EMERGENCY LIGHTS CYCLE ON AND OFF WHEN ARMED. MX REPLACED THE F/A ARMING SWITCH. OPS CHECK WAS GOOD.

Part: POWER SUPPLY — DEFECTIVE (CABIN) · airframe 75,192 hrs · 31,149 cycles

DURING FLIGHT, EMERGENCY SIGNS AND PATH LIGHTS CAME ON INTERMITTENTLY. MAINTENANCE REPLACED THE POWER SUPPLY. OPERATIONAL CHECK WAS GOOD.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 75,183 hrs · 31,146 cycles

DURING FLIGHT, EMERGENCY OVERHEAD AND FLOOR LIGHTS COME ON INTERMITTENTLY. MAINTENANCE REPLACED THE EMERGENCY LIGHT SWITCH AT THE FLIGHT ATTENDANT PANEL. OPERATIONAL CHECK WAS GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHT) · airframe 75,006 hrs · 31,092 cycles

EMERGENCY EGRESS LIGHTING FOUND INOP ON OVERNIGHT AT DOOR 2L, DOOR 3L AND ROWS 30, 31. REPLACED PWR SUPPLY AND BATTERY PACKS M732 AND M735, OPS CHECKS OK.

Part: CYLINDER — INOPERATIVE (DOOR ASSIST) · airframe 74,384 hrs · 30,887 cycles

DURING OVERNIGHT CHECK, FOUND LT SIDE DOOR EMERGENCY POWER SPRING CYLINDER INOP. MX R & R THE EMERGENCY POWER SPRING CYLINDER. CHECKED GOOD, AND ACFT WAS RETURNED TO SERVICE.

Part: OVEN — SMOKE (GALLEY) · airframe 72,261 hrs · 30,118 cycles

IN CRUISE FROM PDX TO MSP, THE OVEN BEGAN TO SMOKE WHEN IT WAS TURNED ON. THE FLIGHT ATTENDANT TURNED THE OVEN OFF AND PULLED THE ASSOCIATED CIRCUIT BREAKER. THE FLIGHT CONTINUED ON AND LANDED UNEVENTFULLY IN MSP. MAINTENANCE REPLACED THE OVEN AND THE SYSTEM OPERATED NORMALLY AFTER IT WAS REPLACED.

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 66,769 hrs · 28,060 cycles

DURING OVERNIGHT CHECK, AFT CABIN EMERGENCY LIGHTS INOP. MAINTENANCE REMOVED AND REPLACED POWER SUPPLY. OPERATIONAL CHECKED GOOD AND AIRCRAFT RETURNED TO SERVICE.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 65,727 hrs · 27,663 cycles

DURING LINE CHECK, FOUND EMERGENCY EXIT LIGHT AT AND AISLE LIGHTS AFT OF DOOR 2 LEFT INOPERATIVE. REMOVED AND REPLACED BATTERY PACK (M733) IAW MM 33-51-07, OPS CHECK NORMAL.

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHT) · airframe 64,230 hrs · 27,065 cycles

ATTENDANT REPORT STATED EMERGENCY ESCAPE LIGHTING IS NOT WORKING IN 1ST CLASS. MAINTENANCE REMOVED AND REPLACED POWER SUPPLY IAW MM 33-51-07. OPS CHECKED GOOD. OK FOR SERVICE. Â

Part: FAN — FAILED (CABIN AIR) · airframe 62,321 hrs · 26,318 cycles

WHILE AT ALT, LEAD F/A REPORTED A BURNING ELECTRICAL SMELL ALONG WITH A SHORT TERM HAZE THAT DISSIPATED, AND SMELL DECREASED, THEN EICAS "R RECIRC FAN" AND INOP LIGHT IN R RECIRC BUTTON APPEARED SELECTED R RECIRC FAN OFF. FLIGHT CONTINUED ON AND LANDED WITHOUT INCIDENT. MAINTENANCE R&R RT RECIRCULATION FAN. OPS CHECKED GOOD, AIRCRAFT RETURNED TO SERVICE.

Part: SEAT TRACK — CORRODED (FUSELAGE) · corrosion level 2 · airframe 59,174 hrs · 25,038 cycles

DURING "M" CHECK, FOUND CORROSION ON SEAT TRACK AT BS 1640 LBL 24. REPAIRED PER EA 55-202017.

Part: PLATE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 59,174 hrs · 25,038 cycles

DURING H-CHECK FOUND CORROSION ON THE UPPER SURFACE OF AFT DECK PLATE BS 1708 TO 1720 LBL 60 TO RBL 60. REPAIRED PER EA 55-202110.

Part: SEAT TRACK — CORRODED (FUSELAGE) · corrosion level 2 · airframe 59,174 hrs · 25,038 cycles

DURING "H" CHECK, FOUND CORROSION ON SEAT TRACK AT BS 378 LBL 25. REPAIRED PER EA 55-202113.

Part: POWER SUPPLY — INOPERATIVE (CABIN) · airframe 47,059 hrs · 20,151 cycles

DURING LINE CHECK, FOUND EMERGENCY LIGHTS AT DOORS 2L, 2R, AND FLOOR TRACK INOPERATIVE. MAINTENANCE REPLACED THE POWER SUPPLY M9002. OPERATIONAL CHECK OK.

Part: FAN — FAILED (E/E BAY) · airframe 46,937 hrs · 20,101 cycles

DURING DESCENT, FLIGHT CREW NOTICED SMOKE ODOR IN FLIGHT DECK. DECLARED AN EMERGENCY AND MADE AN UNEVENTFUL LANDING. MAINTENANCE REPLACED THE NR 1 EQUIPMENT COOLING FAN. OPERATIONAL CHECK GOOD.

Part: THRESHOLD — CORRODED (BS 1380-1440)

DURING PERIODIC CHECK, FOUND CORROSION ON INNER CHORD AT AFT CARGO DOOR THRESHOLD FS 1380 TO 1440. REPAIRED PER EA 55-150823.

Part: TT2 SENSOR — MALFUNCTIONED (NR 2 ENGINE)

DURING FULL THRUST TAKEOFF, NR 2 ENGINE EGT REACHED 630 DEGREES AND WAS CLIMBING. TAKEOFF WAS ABORTED AT 110 KNOTS AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED PT2/TT2 SENSOR AND REPLACED THE ENGINE OIL SCREEN, NO OIL CONTAMINATION WAS FOUND. PERFORMED ENGINE RUNUP AND ALL OPERATING PARAMETERS WERE FOUND TO BE WITHIN LIMITS.

Part: IDG CONNECTOR — LOOSE (RT ENGINE)

DURING APPLICATION OF TAKEOFF THRUST, THE RIGHT GENERATOR DRIVE EICAS MESSAGE ILLUMINATED. ABORTED TAKEOFF AT ZERO KNOTS. MAINTENANCE TIGHTENED THE ELECTRICAL CONNECTOR ON THE RIGHT IDG AND SERVICED OIL. AIRCRAFT RETURNED TO SERVICE.

Part: ACTUATOR — MALFUNCTIONED (NLG)

UPON DESCENT INTO DTW DURING GEAR EXTENSION, NOSE GEAR DOOR INDICATION REMAINED ILLUMINATED AND NOSE GEAR INDICATED RETRACTED. DURING LANDING GEAR RECYCLE, GEAR SAFE INDICATION TOOK THREE MINUTES TO ILLUMINATE AND NOSE GEAR MADE A LOUD NOISE UPON EXTENSION. LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE NOSE LANDING GEAR ACTUATOR. LEAK AND OPERATIONAL CHECK WAS NORMAL.

Part: CONTROL VALVE — MALFUNCTIONED (LEFT)

THE LEFT ENGINE BLEED VALVE CLOSED SHORTLY AFTER TAKEOFF, THE AIRCRAFT WOULD NOT PRESSURIZE AND FLIGHT RETURNED TO MSP. REPLACED THE LEFT REVERSE FLOW CONTROLLER VALVE AND BLEED CONFIGURATION CIRCUIT CARD. SYSTEM CHECK DURING ENGINE RUNUP WAS NORMAL.