N77535
Registered owner: UNITED AIRLINES INC, IL (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
24 reports on file, 2017-02-27 – 2026-08-13.
Part: ACM — SEIZED (LEFT) · airframe 30,836 hrs · 11,548 cycles
AIR RETURN FOR SMOKE/FUMES IN THE COCKPIT. TROUBLESHOOTING COCKPIT SMOKE/ODOR IAW AMM 05-51-26-800-801-C1. NO SMOKE/ODOR DETECTED. LEFT PACK TRIP LIGHT COMES ON SHORTLY AFTER TURNING ON , UNABLE TO TRIP RESET. BURN ODOR COMING FROM LT PACK BAY. PERFORMED PACK TEMP CONTROL BITE CHK IAW FIM 21-62 TASK 801, FAULT CODES 21-51117 & 21-51123 APPEAR. REMOVED LT ACM, FOUND UNIT SEIZED, ALL WORK DONE IAW AMM 21-51-04-000-802-002. INSTALLED LT ACM, IAW AMM 21-51-94-400-802-002, LEAK & BITE CHK. PERFORMED, LT& R PACK/ZONE TEMP CONTROLLER BITE TEST, IAW AMM 21-61-00-740-801-002, TEST PASSED WITH NO FAULTS NOTED ON EITHER PACK, PERFORMED OPS & LEAK CHECK OF LT AIR CONDITIONING PACK, AND ACM, NO LEAKS NOTED, AIR CONDITIONING SYS IS FUNCTIONING NORMALLY.
Part: OVEN — CONTAMINATED (ZONE 900) · airframe 29,414 hrs · 10,893 cycles
OVEN SMELLS BAD, FWD GALLEY OVEN 204 INOPERATIVE. PULLED AND COLLARD CIRCUIT BREAKER. OVEN 204 INOP. BAD ODOR IS FROM FOOD. COMPLIED WITH NEF 2510AU OPS CHKD IAW AMM 25-34-00, SATISFACTORY WITH NO WEIRD ODOR. DDP COMPLIED WITH. CLEARING NEF.
Earlier reports · 2017–2025 · 22 reports
2025
Part: COVER — LOOSE (ZONE 800) · airframe 28,890 hrs · 10,651 cycles
FA REPORTS THAT THE 2L EMERGENCY SLIDE PLASTIC COVER IS LOOSE AND THE SLIDE HANGS TOO LOW. INSPECTED BOTH AFT DOOR SLIDES, NO DEFECTS NOTED, SLIDE COVERS INTACT. CHECKED TORQUE AND FOUND MOUNT HARDWARE SECURE. IAW AMM 25-66-01. OK FOR SVC.
Part: QUICK DISCONNECT — LEAKING (HYD) · airframe 28,634 hrs · 10,533 cycles
HYD PUMP LOW PRESSURE SYS B ENG 2. HYD PUMP SWITCH IS OFF. RAN ENG NR 2. HYD PUMP LOW PRESSURE LIGHT ON SYS B ENG 2 & NO PRESSURE IND. R & R ENG 2 EDP IAW AMM 29-11-11. ENG TEST IAW AMM 71-00-00. OPS CHECK FAILED. ENG 2 LOW PRESSURE LIGHT REMAINS ON, & SYS B HYD ENG PRESSURE IND DID NOT RISE TO 2800 PSI OR HIGHER. ON INSP FOUND BULKHEAD PRESSURE FITTING AT PYLON BROKEN & PRESSURE HOSE PARTIALLY DISCONNECTED. R & R NR 2 ENG STRUT PRESSURE DISCONNECT FITTING IAW FIM 29-30 TASK 813. PAR F STEP 5. ALSO REPLACED EDP PRESSURE QUICK DISCONNECT HOSE. CHECKED CASE DRAIN FILTER IAW AMM 29-11-51-000-801. FILLED B SYS HYD IAW AMM 29-00-00-900-801. RAN ENG FOR EDP PRESSURE CONFIRM. OPS CHKD GOOD. EDP PRODUCES 3000 PSI MIN. IAW AMM 20-11-00-860-804.
Part: LIGHT — MISSING (ZONE 200) · airframe 28,103 hrs · 10,279 cycles
THERE IS A HOLE WHERE EMERGENCY LIGHT SHOULD BE. FLOOR PROXIMITY LIGHT ASSEMBLY REPLACED. OPS CHECK OK. EMERGENCY LIGHTS OPS TESTED IAW 33-51-00-720-801.
Part: SWITCH — FAULTED (ZONE 700) · airframe 27,968 hrs · 10,219 cycles
LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF GREEN AND RED LIGHTS ALL ILLUMINATED. DEBRIEFED CREW ON ARRIVAL. LANDING GEAR DID NOT RETRACT WITH GEAR HANDLE IN UP POSITION. ALL 3 GEAR INDICATIONS ON FWD PANEL RED. ALL 3 AUX GEAR INDICATIONS ON OVHD PANEL GREEN. CYCLED MANUAL EXTEND DOOR 3 TIMES. NO JOY. PSEU LIGHT REMAINED EXTINGUISHED DURING RETURN. MX ACCOMPLISHED PSEU BITE. NO ACTIVE FAULTS. NO FAULTS IN HISTORY. R & R LANDING GEAR MANUAL EXTENSION SYSTEM ACCESS DOOR SWITCH IAW AMM 32-34-11-820-802. OPS CHECK & ADJUSTMENT GOOD. PERFORMED LANDING GEAR OPS TEST IAW AMM 32-32-00-710-801 ALL OPS CHECK PASSED. OK FOR SERVICE.
Part: LAMP — NO TEST (ZONE 200) · airframe 27,892 hrs · 10,180 cycles
EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK. R/H AFT OVERWING EMERGENCY LIGHT INOP. LAMP REPLACED, OP CHECK GOOD IAW: 33-51-04-960-801.
Part: UNKNOWN — ODOR (CABIN) · airframe 27,341 hrs · 9,943 cycles
PUNGENT SMELL IN COCKPIT AND CABIN AIRBORNE NOTICED WHISP OF WHI TE SMOKE ON TAKEOFF PERFORMED HIGH POWER RUN NO SMELL NOTICED ACFT OK TO RETURN TO SERVICE REF AMM 71-00-00. SMOKE/ODOR IN THE FLIGHT DECK/CABIN INSPECTION ACCOMPLISHED REF AMM 05-51-26-800-801-C1 STEPS 1.C, 1.D . NO DEFECTS NOTED AT THIS TIME.
Part: SKIN — CRACKED (ZONE 100) · airframe 27,238 hrs · 9,898 cycles
EXTERNAL GROUND POWER DOOR CUTOUT HAS GOUGE AT AFT CENTER SECTION. ACCOMPLISHED REPAIR AT EGPR AFT CENTER SECTION IAW SRM 53-10-15-2R-4. SFR NO. 805.
Part: PANEL — GOUGED (ZONE 500) · airframe 27,238 hrs · 9,898 cycles
L/W L/E SLAT #4 PANEL AFT OF ACTUATOR PANEL DEEP GOUGE I/B END REF AAR A/R 9954724 ESFR ENTRY. L/W L/E SLAT #4 PANEL AFT OF ACTUATOR PANEL DEEP GOUGE I/B END REF AAR A/R9954724 ESFR ENTRY. REF ESFR NO.800
Part: SHIELD — CORRODED (ZONE 100) · corrosion level 2 · airframe 27,238 hrs · 9,898 cycles
AFT CARGO DOOR CUTOUT FWD SHIELD CORROSION AROUND NUTPLATES AT LOWER SURFACE REF AAR N/R 9955164 ESFR ENTERED. REMOVED AND REPLACED AFT CARGO DOOR CUTOUT FWD SHIELD PER SRM 51-40-02-0G-0 AND DWG# 146A0081.
Part: FLOORBEAM — CORRODED (ZONE 200) · corrosion level 2 · airframe 27,238 hrs · 9,898 cycles
ACCOMPLISHED REPAIR AT STA 947.5 RBL 51 FLOOR BEAM REF SRM 53-70-51-2R-5 REPAIR 5 REF AAR N/R 9954833 ESFR COMPLETED ACCOMPLISHED REPAIR AT STA 947.5 RBL 51 FLOOR BEAM REF SRM 53-70-51-2R-5 REPAIR 5 .
Part: ANGLE — CRACKED (ZONE 100) · airframe 27,238 hrs · 9,898 cycles
W/W RH STA 663 RBL 7" VAPOR BARRIER UPPER ANGLE CRACKED REF AAR N/R 9954772 ESFR CREATED AND SUBMITTED. CORRECTIVE ACTION: REMOVED AND REPLACED UPPER ATTACH ANGLE ON R/H VAPOR BARRIER SIDE AS PER SRM 51-40-02-0G-0 AND DWG # 111A1000 REF ESFR NRO.644.
Part: ANGLE — CRACKED (ZONE 100) · airframe 27,238 hrs · 9,898 cycles
{ B737-06-3-0030 } W/W LH STA 663 LBL 7" VAPOR BARRIER UPPER ANGLE CRACKED REF AAR N/R 9954773 ESFR INFORMATION ADDED. ACCOMPLISHED REPAIR AT L/H VAPOR BARRIER STA 663 LBL 7 AS PER SRM 57-10-10-2R-5 AND APPLIED CIC TO REPAIR AREA AS PER AMM 51-21-91-620-802. REF ESFR NRO. 643 WORK ACCOMPLISHED BY V942334 C/W
Part: STRUCTURE — CORRODED (ZONE 200) · corrosion level 2 · airframe 27,238 hrs · 9,898 cycles
{B737-06-3-0049} CABIN AFT WET AREA L/H INNER CHORD, IS CORRODED FROM STA. 955 TO STA. 98.5 REF AAR N/R 9954829 REMOVED AND REPLACED CABIN AFT WET AREA INNER CHORD REF B-737 SRM 51-40-02-0G-0 AND DWG 147A8540
Part: SLIDE — DAMAGED (ZONE 800) · airframe 26,942 hrs · 9,762 cycles
SLIDE PACK DAMAGED DOOR 1R INSPECTED SLIDE PACK OF 1R DOOR AND FOUNDED WITHIN LIMITS IN REF TO AMM TASK 25-66-01-400-804, NO FURTHER DEFECTS NOTED AT THIS TIME.
2024
Part: INDICATOR — UNRELIABLE (AIRSPEED) · airframe 25,479 hrs · 9,127 cycles
REJECTED TAKEOFF DUE TO AIRSPEED UNRELIABLE AMBER LGT. CA INDICA TOR 55KTS FO INDICATOR 85KTS SEE LOG 7981417 FOR CAPTAINS PITOT TUBE REPLACED DUE TO BEING CLOGGED. AFTER REPLACEMENT , AIRSPEED INDICATION ON CAPTAINS SIDE MATCHED FIRST OFFICERS WHEN BOTH LEAK CKD AND TESTED REF MM 34-11-00-790-810.
Part: LIGHT — DAMAGED (SEAT 11ABC) · airframe 25,209 hrs · 9,002 cycles
SEAT MOUNTED EMERGENCY LIGHT AT ROW 11ABC MISSING. REMOVED AND REPLACED EMERGENCY LIGHT REF MM 33-51-11. OPS CK OK. VERIFIED INSTALLATION AND OPERATIONAL CHECKS OF SEATS 11ABC EMERGENCY LIGHT IAW AMM 33-51-11
2019
Part: COMPUTER — INOPERATIVE (TCAS) · airframe 11,183 hrs · 3,971 cycles
TCAS FAIL FLAG ON NAVIGATION DISPLAY SHOWS WITH ATC TRANSPONDER SELECTOR AT TA AND SHOWS WITH SELECTOR AT TA/RA FLAG DISPLAYED IN POSITION 1 AND POSITION 2 REPLACED TCAS COMPUTER OPS OK. PARTS UPDATE. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1079731 SN OFF 2483 COMPUTER, TRAFF OFF 23-3445-9-9001 2483 ON 23-3445-9-9001 0824.
2017
Part: FLASHLIGHT — NO TEST (GALLEY) · airframe 4,585 hrs · 1,676 cycles
FWD GALLEY FLASHLIGHT FAILED TO TEST .
Part: SIGN — MISSING (SEAT 20A) · airframe 3,648 hrs · 1,350 cycles
EMERGENCY EXIT SIGN MISSING AT KNEE AREA OF SEAT 20A. REPLACED EMERGENCY LIGHT ASSY IAW AMM 33-51-01-960-802. OK FOR SERVICE.
Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 3,567 hrs · 1,310 cycles
BS 712 CABIN FWD CLOSET EMERGENCY LIGHT LENS MISSING. LIGHT OPS OK. REPLACED THE MISSING LENS IAW AMM 33-51-14-960-801. OPS CHECKED OK
Part: ENGINE — FOD (NR 1) · airframe 3,257 hrs · 1,194 cycles
WHILE SITTING ON TAXIWAY, THE ENGINE INGESTED HUGE PIECE OF ROLLING PLASTIC. THE ENGINE FAILED, PERFORMED A VISUAL FOD INSPECITON OF THE NR 1 ENGINE IAW AMM 71-00-00-800-802-F00. FOUND NO EVIDENCE OF PLASTIC INDGESTION INSIDE ENGINE CORE, FOUND AND REMOVED PART OF PLASTIC BAG ATTACH TO THE IDG COOLER. ENGINE TESTED GOOD ON BOTH A & B CHANNELS. PERFORMED EEC BITE TEST IAW MM 73-21-00, NO RECENT FAULTS & GROUND CONTINUED INSPECPTION OF THE NR 1 ENGINE IAW AMM 71-00-00-800-802-F00, BORESCOPE INSPECTION GOOD, ACCOMPLISHED A NR 1 ENGINE TEST 5 IAW AMM 71-00-00-700-813-F00, TESTED OK, ALL PARAMETERS NORMAL.
Part: FUEL CELL — OVERSERVICED · airframe 1,534 hrs · 569 cycles
FUEL COMING FROM RIGHT WING TIP AND F/A REPORT FUEL ODOR IN GALLEYS. TANK WAS OVERSERVICED AND FUEL CAME FROM SURGE TANK DURING TAXI, REDISTRIBUTED FUEL. NO DEFECTS NOTED TANK WAS OVERSERVICED AND FUEL CAME FROM SURGE TANK DURING TAXI, REDISTRIBUTED FUEL. NO DEFECTS NOTED