N86534
Registered owner: UNITED AIRLINES INC, IL (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| UNITED AIRLINES, INC. (CALA) | Operator | on 2019-07-11 | Operator named in NTSB report |
Accident & incident history
Operated by United Airlines (per NTSB report)
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.
21 reports on file, 2019-01-13 – 2026-08-04.
Part: AIR FILTER — FAULTY (RH RECIRCULATION) · airframe 31,056 hrs · 11,797 cycles
STRONG DIRTY ODOR FROM AIR CON, STARTED AROUND 15K FT & LASTED UNTIL LANDING. FOUND OIL PUDDLE IN AFT TURBINE SECTION ON NR 1 ENGINE. PERFORM CONDITION INSP IAW AMM 05-51-26-800-801 -C1 ODOR STILL PRESET NOT AS STRONG WITH RT PACK OFF, NO SMOKE ODOR. ABSERVED RT PACK TEMP 90C. REPLACED RT RECIRCULATION AIR FILTER IAW AMM 21-25-01-400-801. AWAITING ENGINE RUN. CHECKING RT PACK ON, ODOR PRESENT, WITH RT PACK OFF, NO ODOR PRESENT, WITH LT PACK ON, NO ODOR PRESENT.
Part: CONTROL VALVE — FAULTED (RT ACM) · airframe 31,060 hrs · 11,802 cycles
RIGHT PACK LIGHT ILLUMINATED. AFTER ENG SHUTDOWN AT GATE. OPENED ECS RT PACK BAY, BURNED OIL ODOR PRESENT. TROUBLESHOT DOWN TO RT PACK, WITH PACK OFF, NO ODOR PRESENT. MEL 2101B APPLIED FOR RT PACK INOP. FIM 21-00 TASK 801 FOR RT PACK WARNING LIGHT ON, AFTER REVERSING MEL. PACK FLOW SENSOR MESSAGE 21-51239 AFTER BITE TEST. NEED TO REPLACED RT PACK FLOW SENSOR IAW FIM 21-53 TASK 821. DEACTIVATED RT PACK AFTER TEST. COMPLIED WITH MEL 2101B. COMPLY WITH FIM 21-00 TASK 801, DUE TO ODOR PRESENT. REPLACED RT PACK FLOW SENSOR. RAN INTIAL GROUND TEST, TEST PASSED. RAN RT PACK. PACK RAN FOR 3 MINS BEFORE KICKING OUT. RESET A/C SYS & RAN TEST AGAIN. S YSTEM FAULTED AGAIN. PERFORMED GROUND TEST, THIS TIME TEST FAILED & 2 FAULTS WERE PRESENT. FAULTS INDICATED FAULTY ZONE TEMP CONTROL VALVE. VALVE HAS HISTORY OF BEING CHANGED BACK ON 7/30. REPLACED THE RT PACK FLOW SENSOR. . RAN INTIAL GROUND TEST, TEST PASSED.
Part: OVERHEAT LOOP — FAULTED (ZONE 100) · airframe 30,735 hrs · 11,649 cycles
DIVERSION TO GJT. RT WING BODY OVERHEAT. PERFORMED INSPECTION IN RT WING LE AREA & RT PACK BAY. NO BLEED LEAKS NOTED. DEFERRED RHWING-BODY OVERHEAT DETECTOR SYSTEM PER MEL 2613C. FIM 36-18 / 801 HAD FAULT CIDE 64 RT WING LE & ACFT PACK BAY, ALARM. PERF INSP IN RT WING LE AREA & RT PACK BAY. NO BLEED LEAKS NOTED. DEFERRED RT WING-BODY OVERHEAT DETECTOR SYSTEM IAW MEL 2613C. RESISTANT ON D742 PIN 10 TO 11 TO BE WITHIN LIMITS AT 6.8 OHMS. REMOVED AND REPLACED CODCU 26-18-01 NEW UNIT FAILED SHOWING CODE 14 & UNABLE TO RESET. REINSTALLED ORIGINAL UNIT NO CURRENT FAULTS ON. REMOVED AND REPLACED RH FWD STRUT OVERHEAT LOOP M1763 IAW AMM 28-16-02-400-801. OPS. CHKD GOOD. NO DEFECTS NOTED.
Part: OVEN — ODOR (ZONE 900) · airframe 30,763 hrs · 11,661 cycles
WARMING OVEN SMELLS BAD. OVEN 425 SMELLS LIKE BURNT PLASTIC. INSTALLED INOP STICKER ABOVE AFT GALLEY OVEN 425, PULLED CB TO OVEN 425. OVEN IS NO HAZARD TO PASSENGERS.TOMC APPROVED, OK TO DEFER PER NEF 2510AU COMPLIED WITH NEF 2510AU. R & R AFT GALLEY OVEN 425 IAW AMM 25-34-00. OPS CHECK GOOD.
Part: OVEN — FAULTY (ZONE 900) · airframe 30,649 hrs · 11,608 cycles
STRONG PLASTIC OR GAS LIKE BURNING ODOR WITH AFT OVEN 425 TURNED ON. FOUND OVEN TO BE AT FAULT C/W AMM UP TO PARAGRAPH C.F-1 AND C/W PARAGRAPH E, PLACING OVEN 425 ON MEL, DDP C/W. C/W AMM 05-51-26 FOUND OVEN TO BE AT FAULT C/W AMM UP TO PARAGRAPH C.F-1 AND C/W PARAGRAPH E, PLACING OVEN 425 ON MEL, DDP C/W. C/W AMM 05-51-26 FOUND OVEN TO BE AT FAULT C/W AMM UP TO PARAGRAPH C.F-1 AND C/W PARAGRAPH E, PLACING OVEN 425 ON MEL, DDP C/W. REMOVED AND REPLACED THE OVEN AT AFT GALLEY G43/G43. OPS CHECK GOOD. NO ODOR OR BURNING PASTIC SMELL COMING OUT OF IT. REF AMM 25-34-00.
Part: UNKNOWN — ODOR (CABIN) · airframe 30,265 hrs · 11,432 cycles
PILOT REPORTED SLIGHT OIL ODOR WITH APU SUPPLYING BLEED PRESSURE FOR PACKS ON TAXI IN. SMELL DISSAPATED QUICKLY AFTER ARRIVAL AT GATE. FLIGHT CREW REPORTED NO ODORS DURING ANY PHASE OF PREVIOUS FLIGHT. INSPECTED APU BLEED DUCT FOR EVIDENCE OF OIL LEAKAGE. NO EVIDENCE OF OIL LEAKAGE FOUND AT THIS TIME, DUCT CLEAR OF DEBRIS. INSPECTED LEFT AND RIGHT PACK BLEED AIR SUPPLY DUCTS FOR EVIDENCE OF OIL INTRUSTION. NO EVIDENCE OF OIL CONTAMINATION FOUND AT THIS TIME, DUCTS CLEAR OF ANY DEBRIS. REMOVED AND REPLACED BOTH RECIRCULATION AIR FILTERS. PERFORMED LEAK CHECK OF APU BLEED AND BOTH PACK BLEED AIR SUPPLY DUCTS. LEAK CHECKED GOOD.
Earlier reports · 2019–2025 · 15 reports
2025
Part: SLIDE — NO DISCREPANCY (ZONE 800) · airframe 28,950 hrs · 10,768 cycles
DOOR 1R EMERGENCY SLIDE HAS EXCESS SLIDE IS LOW/NEAR FLOOR SLIDE WITHIN 11 INCH MATERIAL LENGTH LIMIT IN REFERENCE TO AMM 25-66-01 TASK D SUBTASK D AND EC2560-01987F.
Part: GIRT BAR — NO DISCREPANCY (ZONE 800) · airframe 28,643 hrs · 10,619 cycles
FA REPORT DOOR 1R SLIDE NON-STANDARD POSITION FAS GUARDED SLIDE 1R IN THE ARMED POSITION UNTIL MY ARRIVAL. SLIDE UNARMED AND STOWED SATISFACTORILY. FAS STATE THAT THE GIRT MATERIAL DIDN'T LOOK RIGHT. MEASURED GIRT AT APPROXIMATELY 11 INCHES AS CALLED FOR IN AMM TASK 25-66-01-400-80. NO HISTORY PAST 90 DAYS. SLIDE 1R OK FOR SERVICE AT THIS TIME.
Part: BUSTLE — OUT OF POSITION (ZONE 800) · airframe 27,654 hrs · 10,150 cycles
ESCAPE SLIDE PACK BUSTLE LOOSE DOOR 2L SLIDE BUSTLE AT DOOR 121 NOT FLUSH WITH DOOR. ESCAPE SLIDE BUSTLE IS SECURE AND MOUNTED CORRECTLY PER TASK 25-66-01-200-802
Part: FAIRING — CRACKED (ZONE 400) · airframe 27,507 hrs · 10,083 cycles
NO-2 PYLON AFT LOWER FIXED FAIRING AFT INTERNAL SUPPORT RIB CRACKED REF AAR N/R 9948452 REMOVED AND REPLACED T/E ASSY AFT FAIRING AT #2 PYLON AFT FIXED FAIRING AS PER SRM 51-40-02-0G-0 AND DWG# 313A2700. ESFR COMPLETED REMOVED AND REPLACED T/E ASSY AFT FAIRING AT NO.2 PYLON AFT FIXED FAIRING AS PER SRM 51-40-02-0G-0 AND DWG 313A2700.
Part: CAP — WORN (ZONE 500) · airframe 27,507 hrs · 10,083 cycles
L/W INB FIXED L/E FAIRING I/B OF # 1 PYLON END CAP DEEP WEAR MARKS. REMOVED AND REPLACED AT L/W INBD FIXED L/E INBD OF NO.1 PYLON AS PER B737-800 SRM 51-40-02-0G-0 AND DWG 116A4008.
Part: CAP — GOUGED (ZONE 600) · airframe 27,507 hrs · 10,083 cycles
R/W INB FIXED L/E FAIRING I/B PYLON # 2 END CAP DEEP GOUGES, REF AAR N/R 9948446 REMOVED AND REPLACED AT R/W INBD FIXED L/E INBD OF #2 PYLON AS PER B737-800 SRM 51-40-02-0G-0 AND DWG# 116A4008.
Part: FLOOR SUPPORT — CORRODED (ZONE 200) · airframe 27,507 hrs · 10,083 cycles
AFT CABIN WET AREA FLOOR SUPPORT INTERCOSTAL HAS SPOTS CORR BETWEEN STA 947 AND 967 LBL 50 MKD (REF AAR N/R 9948342) SFR INFORMATION ENTERED REMOVED AND REPLACE INTERCOSTAL AT AFT CABIN WET AREA BETWEEN STA 947 AND 967 LBL50 AS PER SRM 51-40-02-0G-0 AND DWG# 147A5650. ESFR NO.:581
Part: ANGLE — CRACKED (ZONE 100) · airframe 27,507 hrs · 10,083 cycles
L/H W/W STA 663 VAPOR BARRIER UPPER ANGLE CRACK AT LBL 7" REF AAR N/R 9948295 ESFR CREATED FOR LP 4168494
Part: ANGLE — CRACKED (ZONE 100) · airframe 27,507 hrs · 10,083 cycles
R/H W/W STA 663 VAPOR BARRIER UPPER ANGLE CRACK AT RBL 7" REF AAR N/R 9948296 CREATED ESFR FOR LP 4168507
Part: FLOOR SUPPORT — CORRODED (ZONE 200) · corrosion level 2 · airframe 27,507 hrs · 10,083 cycles
REMOVE AND REPLACE AFT CABIN WET AREA FLOOR SUPPORT INTERCOSTAL UPPER CAP CORR AT STA 947 LBL 24 MKD DOT 004 REF AAR N/R 9948344 CREATED ESFR ENTRY, NOT A MAJOR REPAIR.
Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 27,156 hrs · 9,931 cycles
AFT RIGHT DOOR AND FWD LEFT DOOR EMERGENCY EXIT LIGHTS INOP. R/R BATTERIES M1675 AND M1672. OPS CHECK GOOD.
2024
Part: LAMP — NO TEST (ZONE 200) · airframe 26,844 hrs · 9,786 cycles
EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK, EXTERIOR LIGHT AT DR 1LH IS INOP RELAMPED. EXTERIOR LIGHT AFT OF L-1 DOOR. NORMAL OPS NOTED.PARTS USED: 99-3351-3-0014, QTY :1
Part: COVER — LOOSE (ZONE 200) · airframe 26,413 hrs · 9,583 cycles
COVER AT 20F EMERGENCY OVER WING DOOR LOOSE. UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. MAC METER INITIATED FOR MAC RELATED WORK ORDER 000000003119419. RESECURED EMER EXIT DOOR COVER, PAX KNOCKED IT OFF. ACFT GOOD TO CONTINUE. RESECURED EMER EXIT DOOR COVER, PAX KNOCKED IT OFF. ACFT GOOD TO CONTINUE.
2019
Part: LINE — UNSECURE (BLEED AIR SYS) · airframe 11,017 hrs · 3,958 cycles
RIGHT BLEED VALVE FAILED IN CLOSED POSITION. WOULD NOT OPEN. SECURED LINE AT PRSOV, RAN ENGINE CKS GOOD.
Part: PUMP — NOT REPORTED (NR 2 ENGINE) · airframe 8,768 hrs · 3,149 cycles
ENG 2 HYD PUMP LOW PRESS LIGHT ILLUMINATED REMOVED AND INSTALLED ENGINE NR 2 HYDRAULIC ENGINE DRIVEN PUMP (EDP) ALSO REPLACED EDP CASE DRAIN FILTER ELEMENT, ELEMENT WAS FOUND IN GOOD CONDITION. ROTABLE PARTS CHANGE WAS INDICATED - TT 1850538 SN OFF 8536 PUMP, HYD ENG D OFF 29-2910-9-0003 8536 ON 29-2910-9-0003 1941 29-11-11, AND AMM 29-11-51. UPDATE FOR INSTALL REFERENCES. REF. IPC 29-11-11-01A, AMM ENGINE NR 2 HYDRAULIC ENGINE DRIVEN PUMP (EDP) NEEDS INSTALL TEST PER. AMM 29-11-11-400-801-001 STEP G. ALOS THE EDP CASE DRAIN FILTER NEEDS LEAK CHECK. UPON LEAK CHECK FOUND QUICK DISCONNECT BROKEN ON HYDRAULIC PRESSURE LINE AND HYDRAULIC PREASURE UNION AT PYLON. REMOVED AND REPLACED HYDRAULIC UNION AND PREASURE HOSE FOR NUMBE R 2 ENGINE. PERFORMED LEAK CHECK, OPS CHECK OK.