N252NN

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 15,530 hrs · 10,068 cycles

CREW RPTD LOST ALL NAVS. RTD TO DFW. NOT ABLE TO USE INSTRUMENT LANDING APPRCH IN DFW /UNABLE TO DO VISUAL. DVRTD TO SHV AND DECLARED EMERGENCY. LANDED SAFELY IN SHV.-C/A-PERFORMED FUNCTIONAL TEST OF LOCALIZER, LAND 2 AND GLIDESLOPE. 1 AND 2 CHECK IS GOOD IAW AMM 34-32-00

Part: FMC — FAULTED · airframe 14,546 hrs · 9,361 cycles

FMS 2 FAIL AFTER ROTATION.BOTH FMS FAIL. SINK RATE FOLLOWED. EMERGENCY DECLARED. AT THIS TIME DEFERRED FMS 2 AS PER MEL MTX ACTION C/W. ORIG SUB DATE: 12/29/2022

Part: NONE — CORRODED (RH OUTBD FLOOR S) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

SSI 53-10-27 ? CORROSION ON RH OUTBD FLOOR SILL BETWEEN FR 17-20. (LEVEL 2 CORROSION)-C/A-RAR R/H OUTBOARD FLOOR SILL BETWEEN FRAMES 17-20 IAW EMB 175 SRM 51-40-08.

Part: NONE — CORRODED (RH CENTER FLOOR) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

SSI 53-10-027 ? CORROSION ON RH CENTER FLOOR BEAM AT FR 17 (FORWARD OF SEAT TRACK PROFILE) (LEVEL 2 CORROSION)-C/A-BLENDED AS REQUIRED TO REMOVE CORROSION FROM RH LOWER SEAT TRACK FWD END JUST AFT OF FR 17 IAW EMB 175 SRM 51-10-03. BLENDED AREA IS ACCEPTED AS IS IAW ERS-EJ-5300-4657.

Part: NONE — GOUGED (RH SEAT TRACK FR) · airframe 14,246 hrs · 9,159 cycles

CABIN LOWER RH SEAT TRACK IS GOUGED BETWEEN FR 80-81 (MAJOR REPAIR)-C/A- REMOVED DAMAGED SECTION OF RH LOWER FLOOR BEAM BETWEEN FR 80-85 AND FABRICATED AND INSTALLED REPLACEMENT SECTION AND SPLICE REPAIR PARTS IAW EMB-175 SRM 51-40-08 AND 53-00-10 REPAIR 01P FIGURE 205 AND ETN-EJ-53-010 R1.

Part: SEAT TRACK — CORRODED (LH LOWER SEAT TR) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

SSI 53-23-005 ? CABIN LOWER LH SEAT TRACK IS CORRODED BETWEEN FR 84-85 (LEVEL 2 CORROSION)-C/A-BLENDED OUT DAMAGED AREA AND ADJACENT TEETH ON CABIN LH LOWER SEAT TRACK BETWEEN FR 84-85 IAW EMB 175 SRM 51-10-03 AND ERS-EJ-5300-4658

Part: NONE — CORRODED (FLOOR SILL FR 19) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

SSI 53-10-027 ? CORROSION ON LH OUTBD FLOOR SILL BETWEEN FR 19-19A (LEVEL 2 CORROSION)-C/A-REMOVED CORROSION ON LH OUTBD FLOOR SILL BETWEEN FR 19-19A AS REQUIRED IAW EMB 175 SRM 51-10-03. BLENDED DAMAGE FOUND TO BE WITHIN LIMITS IAW EMB 175 SRM 51-75-16.

Part: NONE — CORRODED (RH FLOOR SILL FR) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

SSI 53-10-27 ? CORROSION ON RH FLOOR SILL BETWEEN FRS 12-15 (LEVEL 2 CORROSION)-C/A-RAR RH FWD FLOOR SILL BETWEEN FRS 12-15 IAW EMB-175 SRM 51-40-08.

Part: NONE — NONE (FWD PAX DOOR SEA) · airframe 14,246 hrs · 9,159 cycles

FWD PAX DOOR SEAL DEPRESSOR HAS 3 CHAFED AREAS ALONG AFT EDGE (MAJOR REPAIR)-C/A-REMOVED CHAFED SECTION OF FWD PAX DOOR AFT SEAL DEPRESSOR AND INSTALLED SEAL DEPRESSOR FILLER SPLICE IAW EMB-175 SRM 53-10-25

Part: NONE — CORRODED (AFT GALLEY RH SH) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

AFT GALLEY RH SHEAR PANEL CORRODED FRAME 87 (LEVEL 2 CORROSION)-C/A-RAR AFT GALLEY RH SHEER PANEL AT FR 87 IAW EMB-175 SRM 51-40-08

Part: UPPER SHEET — CORRODED (AFT GALLEY RH FL) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

AFT GALLEY RH FLOOR BEAM UPPER SHEET CORRODED AT FR 85 (LEVEL 2 CORROSION)-C/A-RAR RH FLOOR BEAM UPPER SHEET BETWEEN FR 85-86 IAW EMB-175 SRM 51-40-08

Part: SHEAR PANEL — CORRODED (AFT GALLEY SHEAR) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

AFT GALLEY CENTER SHEAR PANEL CORRODED FR 87 (LEVEL 2 CORROSION)-C/A-RAR AFT GALLEY CENTER SHEAR PANEL FR 87 IAW EMB 175 SRM 51-42-01, SRM 51-43-03

Part: NONE — CORRODED (AFT GALLEY FLOOR) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

AFT GALLEY FLOOR SPLICE CORRODED ON FR 90 OUTBD OF RH BEAM. (LEVEL 2 CORROSION)-C/A-RAR AFT GALLEY RH FLOOR SPLICE ON FR 90 OUTBD OF RH BEAM IAW EMB 175 SRM 51-40-08.

Part: NONE — CORRODED (AFT GALLEY CENTE) · corrosion level 2 · airframe 14,246 hrs · 9,159 cycles

AFT GALLEY LH SHEAR PANEL CORRODED FR 87. (LEVEL 2 CORROSION)-C/A-RAR AFT GALLEY LH SHEAR PANEL FR 87 IAW EMB 175 SRM 51-53-03, SRM 51-42-01

Part: STRINGER — NONE (STR 15R,16R,17R) · airframe 14,246 hrs · 9,159 cycles

REF TDMI 052T5340- REPAIR MIS DRILLED HOLES IN STGR?S 15R,16R AND 17R BETWEEN FR 46-47 IAW ERS-EJ-53DF-3951 PT C (MAJOR REPAIR) C/A-PERFORMED PERMANENT REPAIR FOR MIS DRILLED HOLES IN STR 15R, 16R, 17R BTW FR 46-- 47 IAW ERS-EJ-53DF-3951 REV 1, PART C. TDMI 052T5340 RESTORED.

Part: LIGHT — MISSING (CABIN) · airframe 14,246 hrs · 9,159 cycles

CABIN EMERGENCY FLOOR PHOTOLUMINESCENT LIGHTS MISSING 19 END CAPS-C/A-COMPLETE:INSTALLED CABIN EMERGENCY FLOOR PHOTOLUMINESCENT LIGHTS 19 END CAPS IAW EMB 175 AMM 33-50-12

Part: LIGHT — DISCOLORED (RH) · airframe 12,984 hrs · 8,313 cycles

PHOTOLUMINESCENT INDICATOR STRIP LIGHT FWD RH 1ST AND 3RD DISCOLORED-C/A-RAR BOTH RH 1ST AND RH 3RD PHOTOLUMINESCENT STRIPS PER AMM 33-50-21. NO FURTHER DEFECTS NOTED

Part: SLIDE — DEPLOYED (LH/AFT) · airframe 12,822 hrs · 8,213 cycles

LIVE DOOR SLIDE DEPLOYED / NO INJURIES REPORTED - L/H AFT PASSGAER DOOR SLIDE REQUIRES REPLACEMENT-C/A-RAR L/H AFT PAX DOOR SLIDE IAW W/C 25-65-01-001

Part: SPAR — CRACKED (LT WING TIP) · airframe 7,298 hrs · 4,793 cycles

LH WING TIP SPAR 1 FITTING CRACKED-C/A-RAR SPAR 1 ON LH WING TIP IAW ERS-EJ-57MR-1151

Part: SPAR — CRACKED (RT WING TIP) · airframe 7,298 hrs · 4,793 cycles

RH WING TIP SPAR 1 FITTING CRACKED-C/A-RAR SPAR 1 ON RH WING TIP IAW ERS-EJ-57MR-1151

Part: BATTERY PACK — UNKNOWN (EMERGENCY LIGHTS) · airframe 7,216 hrs · 4,745 cycles

REFERENCE CANN TAG C83819 CANNED RH FWD EMERGENCY LIGHT POWER UNIT P/N 3400-22-10 S/N 13522 TO N250NN. (CANNED FROM AIRCRAFT)-C/A-INSTALLED RH FWD EMERGENCY LIGHT POWER IAW EMB 175 AMM 33-50-01 SYS CKS GOOD.

Part: LIGHT — INOPERATIVE (FWD CABIN) · airframe 7,216 hrs · 4,745 cycles

PCR: FWD 2 EMERGENCY LIGHT STRIPS DO NOT FULLY ILLUMINATE-C/A-REMOVED AND REPLACED FWD 2 EMERGENCY LIGHT STRIPS IAW EMB 175 AMM 33-50-21. OPS CHECK GOOD.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 4,728 hrs · 3,145 cycles

BRK LT FAULT ON FINAL WENT AROUND. RAN QRH PROCEDURE FAULT DISAPPEARED ON FINAL. C/A-TROUBLESHOT PER FIM 32-41-00-810-825-A BLOCK1 AND BLOCK 7. PERFORMED BCM2 PR PULSE INIT TEST. FAULT REMOVED. TRANSITORY CONDITION. NO CMC MESSAGES

Part: WARNING MESSAGE — FALSE ACTIVATION (LT BRAKE) · airframe 4,732 hrs · 3,147 cycles

BRK LH FAULT ON FINAL, WENT AROUND RAN QRH PROCEDURE DECLARED EMERGENCY FAULT DISAPPEARED ON FINAL. AFTER APPROX 15 MIN AT AROUND 1500 AGL.-C/A-TROUBLESHOT PER FIM E175 32-41-00-810-825-A BLOCK1 AND BLOCK 7. PERFORMED BCM2 PR PULSE INIT TEST. FAULT REMOVED. TRANSITORY CONDITION. NO CMC MESSAGESRE-RERACKED BCM 2 BACKSHELL REF ERJ 175 AMM 32-41-07. FOLLOWED FIM TASK 32-41-00-810-825-A STEPS 1 & 7. FAULT IS TRANSITORY CONDITION OF THE BCM.

Part: TRU — FAILED (E&E BAY) · airframe 3,446 hrs · 2,262 cycles

ELECTRICAL ARC SMELL IN FORWARD CABIN AND SEEMS STRONGER IN COCKPIT. FOUND SMELL TO BE COMING FROM THE ESS TRU IN THE EICC IN THE FORWARD EBAY. REMOVED AND REPLACED THE ESS TRU IAW AMM 24-31-01, OPS CHECK GOOD. AFTER CHANGING THE ESS TRU AND RUNNING THE PACK IAW AMM 21-51-00-710-801 FOUND ODOR TO BE GONE NOW, OPS CHECK GOOD.

Part: UNKNOWN — ODOR (E&E BAY) · airframe 3,439 hrs · 2,259 cycles

ELECTRICAL BURNING SMELL IN NOSE AVIONIC COMPARTMENT. SPOKE WITH RAMP PERSONNEL, PRIOR TO EVENT THEY HAD PROBLEMS ESTABLISHING AC SERVICE BUS WITH GATE APU. RESET CB 20 IN LICC, AVIONICS BAY FANS OPS CHK OK IAW AMM 21-26-00. FAN CB. SUSPECT GPU CAUSED FAN OVHT. OPERATED WITH NEW GPU NO FURTHER ELECTRICAL SMELL.

Part: GASKET — LEAKING (PRECOOLER DUCT) · airframe 667 hrs · 447 cycles

DURING CLIMB A BLEED 1 LEAK ILLUMINATED ON EICAS. PERFORMED QRH PROCEDURES AND CLEARED LEAK MESSAGE. REMOVED AND REPLACED PRECOOLER OUTLET DUCT GASKET ON THE NR 1 ENGINE IAW AMM 36-11-08, SUBTASK 020-013-A, & 420-011-A. OPS & LEAK CHECKED GOOD IAW AML PG 4162060.

Part: GASKET — FAILED (BLEED DUCT) · airframe 333 hrs · 213 cycles

BLEED NR 1 LEAK ILLUMINATED ON EICAS, PASSING 3000 FT AFTER TAKE OFF. REMOVED AND REPLACED THE PRECOOLER OUTLET DUCT GASKET ON THE NR 1 ENGINE IAW AMM 36-11-08, SUBTASK 020-013-A, & 420-011-A. OPS & LEAK CHECKED GOOD.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 201 hrs · 127 cycles

DURING FLIGHT BRK LT & RT FAULT MESSAGES ON EICAS. DISAPPEARED AFTER 15-20 SEC. MESSAGE REAPPEARED AFTER 20 MINS. FOLLOWING COMPLETION OF QRH. BRAKING ACTION WAS NORMAL UPON LANDING. RESET POWER AND PERFORMED OPERATIONAL CHECK OF THE MAIN BRAKE SYSTEM, NO FAULTS NOTED, OPC GOOD IAW AMM 34-41-00 AND PER SNL170-32-0025. DURING TAXI FOLLOWING MESSAGE APPEARED ADS 3 & 4 SOP COMP FAIL AND FLAP LO RATE. MESSAGES EXTINGUISHED DURING TAXI IN. PERFORMED OPERATIONAL CHECK OF ADC PER AMM 34-15-00 OPC GOOD AT THIS TIME.