N87531
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 | Operator | 2022-12-18 – 2022-12-18 | Operator named in NTSB report |
| UNITED AIRLINES, INC. (CALA) | Operator | 2022-12-18 – 2022-12-18 | Operator named in NTSB report |
Accident & incident history
Maintenance disclosures
FOUND CRACK NR 1 PYLON LOWER AFT FIXED FAIRING INTERNAL AFT SUPPORT CRACKED. REMOVED AND REINSTALLED L/T AFT FAIRING IN REF B737 AMM 54-52-04-010-802 & 54-52-04-410-802. REMOVED AND REPLACED NR 1 PYLON LOWER AFT FIXED FAIRING INTERNAL AFT SUPPORT PER SRM 51-40-02-0G-0 51-40-02-0G-0 AND DWG#313A2752.
RIGHT MLG CENTER DOOR FRAME CRACKED NEAR THE LOWER FORWARD ATTACH POINT. REMOVED RT MLG DOOR ASSY IAW AMM 32-13-11-000-803, REPAIR PARTS IAW SRM 52-80-02-2R-2 AND SRM 51-40-02-0G-0 .REINSTALLED RT MLG DOOR ASSY IAW AMM 32-13-11-420 -803. ACCOMPLISHED RT MLG SHOCKS STRUT DOOR ADJUSTMENT IAW AMM 32-13-11-820-801.CLEARANCES AND FLUSHNES WITHIN LIMITS. ACCOMPLISHED MLG OPS TEST IAW AMM 32-32 -00-710-801, TESTED OK
FOUND CRACK RIGHT VAPOR BARRIER STIFFENER RBL 25 STA 663.75 O/B OF RAM AIR EXIT EXHAUST DUCT. INSTALLED NEW STIFFERNER AT BS 663.75 RBL 25" IAW 51-40-02-0G-0 AND DWG 111A1308-16.
CORROSION AT WASTE SERVICE DOOR BONDING WIRE ATTACHMENT AT DOOR SIDE. REMOVED WASTE SERVICE DOOR IAW AMM 52-49-07-000-801, INSTALLED HINGES AND LATCH AT NEW WASTE SERVICE DOOR IAW SRM 51-40-02-0G-0, INSTALLED NEW WASTE SERVICE DOOR IAW AMM 52-49-07-400-801 RESTORED FINISH NEW WASTE SERVICE DOOR IAW AMM 51-21-41-370-803, AMM 51-21-72-370-804, & AMM 51-21-73-370-803.
DENT AT FLIGHT DECK COMPARTMENT FLOOR STRUCTURE APPROX STA 254 LBL 16 TO RBL 4. REPAIR ACCOMPLISHED IN ACCORDANCE WITH SRM 53-10-51-2R-2 REPAIR 2 FIGURE 201-203 .
FOUND CRACKED VAPOR BARRIER UPPER ATTACHED ANGLE AT RBL 7, BS 663.75. REPAIR ACCOMPLISHED IAW SRM 57-10-10-2R-5, REPAIR 5, FIGURE 201-202.
FWD ENTRY LIGHT CAME ON DURING TAKEOFF BETWEEN SPEED OF 144-150 AND DID NOT EXTINGUISH UNTIL 8000FT PERFORMED VISUAL INSPECTION OF L1 DOOR SWITCHES FOUND NO FAULTS. CLEANED SWITCHES AND PERFORMED FIM 52-10 TASK 801 PSEU L1 DOOR SWITCH TEST NO FAULTS FOUND. OK FOR SVC.
SEAT ROWS 15ABC THROUGH 21ABC SEAT MOUNTED EMERGENCY LIGHTS INOP SUPPORT TASK NSA EMX NR 00276. SEAT ROWS 15ABC THROUGH 21ABC SEAT MOUNTED EMERGENCY LIGHTS INOP. REMOVED BATTERY PACK IAW AMM 33-51-06. INSTALLED AND OPS CHECKED SERVICABLE BATTERY PACK IAW AMM 33-51-06. OPS
HYDRAULIC PUMP A. ENG DRIVEN LOW PRESSURE. REPLACED NR 1 ENGINE DRIVEN PUMP IAW AMM 29-11-11.
L1 PRESSURE GAUGE COVER LOOSE. RAFT RESECURED PRESSURE GAUGE LENS COVER.
ROW 26 AISLE SEAT EMERGENCY EXIT LIGHTING INOP. - EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK {B737-33-3-0235} - FOUND HARNESS UNPLUGGED FROM FLOOR TO CHAIR. RECONNECTED HARNESS AND EMERGENCY LIGHTS OPS CHECK GOOD.
AFT LAV SMOKE ALARM WENT OFF. 321 LAV. NO SIGNS OF FIRE OR SMOK E PERFORMED AFT LAV SMOKE DETECTOR SELF TEST REF AMM 26-14-00. TEST GOOD AT THIS TIME. NO SIGNS OF SMOKE OR BURNING SMELLS NOTED AT THIS TIME.
EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK {B737-33-3-0235} - SEAT 12ABC EMERGENCY FLOOR PROXIMITY LIGHTS INOP R/R LAMPS IAW AMM 33-51-11. OPS CK GOOD
REJECTED TAKEOFF SPLIT FLAPS AFTER TAKEOFF ROLL. PERF BITE ON FSEU AND SHOWS FAULT MSG 27-53254. PERF FIM TASK 27-59 TASK 814. TS AND FOUND SKEW SENSOR NO 6 AT FAULT. R/R #6 SKEW SENSOR REFF AMM 27-59-01-000-804 & 400-804. PERF SYS FUNCTIONAL TEST AND OPS CHKS OK. REFF 27-59-00-730-801.
MULTIPLE BIRD STRIKE ON TAKEOFF APPROX 500FT RIGHT WING AND FUSELAGE 2. ACP BIRDSTRIKE INSPECTION, FOUND BIRD STRIKES ON RH AND LH OB WING LE AND SCIMITAR, NOSE RADOME AND ONE ABOVE FLIGHT DECK WINDOWS, CLEANED SURFACES, NO DAMAGE TO AIRCRAFT STRUCTURE WAS FOUND. OPENED RADOME AND ACP VISUAL INSP OF INTERIOR SURFACE, NO DAMAGE FOUND, CLOSED AND SECURED RADOME. ACP REF TO AMM'S TASK 53-52-00-400-801, AND TASK 05-51-18-210-801.
OPENED THE #1 ENG COWLING AND T/R''S. PERFORMED ASSOSIATED LOTO AMM 78-31-00-440-803-F00. CLOSED ENG #1 COWLING AND T/R''S REF AMM 78-31-00-010-804-F00 AND CORRECTION: UP TO AND INCLUDING STEP 17. C. (7) AMM 71-11-02-410-801-F00. REMOVED LOTO AND ACCOMPLISHED T/R ACTIVATION AFTER GND MAINTENANCE UP TO AND INCLUDING STEP 17. C.(8)THRUST REVERSER NORMAL OPERATION TEST STILL REQUIRED REF ACCOMPLISHED THRUST REVERSER OPERATIONAL CHECK PER AMM78-31-00-700-801-F00. OPS CHKS NORMAL
(SUPPORT TASK) PREVIOUS REPAIR ON RH HORIZONTAL STABILIZER LOWER SKIN AT STA 92 REMOVED FOR ACCESS TO RIB NO. 4 REPAIRS REF NR 2 9842 5 LBS DOUBLER THICKNESS.090". REMOVED FOR ACCESS TO RIB #4 REPAI AERSALE DOC# 29868 ACCOMPLISED BY TECH # V940623. INITIAL INSP RM 55-10-01-2R-11 TABLE 204 RS IAW B737-800 SRM 55-10-01-2R-11 PAR. 4. DATA TRANSCRIBED FROM AT 56,000 FLT CYC, DVI & LFEC AT 9,000 FLT CYC THEREAFTER PER S REMOVED EXISTENT REPAIR AND ACCOMPLISHED NEW CAT B REPAIR ON R/H HORZ STABILIZER LWR SKIN AT STA 92 TO STA 115 DOUBLER WEIGHT 1.
RH HORIZ STAB HAS A CRACK AT RIB STIFFENER STA 92.70 # 2 RIB. REMOVED DAMAGE AND PERFORMED REPAIR ON RH HORIZ STAB AT RIB STIF FERNER STA 92.70 # 2 RIB IAW B737-800 SRM 55-10-09-2R-4 PAR 4. D
RT STAB HAS A CRACK AT RIB VERT STIFFENER STA 92.70 #4 STIFFENER APPROX 2" FROM BOTTOM. REPAIRED RIB VERT STIFFENER STA 92.70 IAW B737-800 SRM 55-10-09- 2R-4.
RH HORIZ STAB HAS A CRACK AT RIB STIFFENER STA 92.70 NO. 3 RIB. REMOVED DAMAGE AND PERFORMED REPAIR ON RH HORIZ STAB AT RIB STIF FENER STA 92.70 # 3 RIB IAW B737-800 SRM 55-10-09-2R-4 PAR 4.
SUPPORT TASK - L/H HORIZONTAL STAB LWR SURFACE "C SCAN INSP" REV EALED CRACK INDICATION RIB 147.90 ACCOMPLISHED REPAIR ON L/H HORIZONTAL STAB LOWER SURFACE AT RIB 147.90 IAW BOEING SRM 55-10-01-2R-11 REPAIR 11 PAR 4 FIGURE 204. DATA WAS TRANSCRIBED FROM PAPER DOC AERSALE WO 3875 NR 26435 WO RK ACP BY MECH V940458 INSP BY AQC004
(SUPPORT TASK) AFTER REMOVAL OF EXISTING REPAIR ON L/H LOWER HOR IZONTAL STABILIZER SKIN, FOUND CRACK ON LOWER CHORD OF RIB #10, 24 INCHES AFT OF L/E AND "2" .098 PILOT HOLES DRILLED THROUGH LO WER CHORD 31.5 INCHES FROM L/E
B737-53-3-0711 MAIN CABIN FLOOR LT CREASE BEAM HAS CORROSION 986 INNER CHORD P/N 147A8540U7 WAS REPLACED ON L/H MAIN CABIN FLOOR STA 986 IAW B737 SRM 51-40-02-0G-0 PARA 4.B.(1) AND 7.A.(1). DAT A WAS TRANSCRIBED FROM PAPER DOC AERSALE WO 3875 NR 29569 WORK A CP BY MECH V940624 INSP BY AQC008
MAIN CABIN FLOORBEAM UPPER SURFACE HAS CORROSION STA 947 LBL 51 PERFORMED REPAIR IN MAIN CABIN FLOORBEAM BS 947 LBL 51 IAW B737-80 0 SRM 53-70-51-2R-5.
B737-53-3-0711 MAIN CABIN FLOOR RT CREASE BEAM HAS CORROSION STA 963-992 INNER CHORD P/N 147A954OU8 WAS REPLACED ON R/H MAIN CABIN FLOOR STA 963-992 IAW B737 SRM 57-40-02-0G-0 PAR 4.B (1) AND 7.A.(1). DATA WAS TRANSCRIBED FROM PAPER DOC AERSALE WO 3875 NR 29572 WOR K ACP BY MECH V940628 INSP BY AQC009
B737-06-3-0049 MAIN CABIN FLOOR UPPER SURFACE HAS CORROSION STA 951 RBL 35 REMOVED AND REPLACED FLOOR SUPPORT AT MAIN CABIN STA 951 RBL 35 P/N 147A5676U6 IAW B737-800 SRM 51-40-02 PAR 7. DATA WAS TRANSCR IBED FROM PAPER DOC AERSALE WO 3875 NR 29633 WORK ACP BY MECH V9 22809 INSP BY AQC004
(B737-06-3-0040) DAMAGED INTERCOSTAL IN MAIN DECK AROUND A NUTPLATE BS 320, LBL 45 REMOVED AND REPLACED INTERCOSTAL IN MAIN DECK BS 320 LBL 45 IAW B737-800 SRM 51-40-02-0G-0 PARA 7D. DATA WAS TRANSCRIBED FROM PA PER DOC AERSALE WO 3875 NR 29620 WORK ACP BY MECH V937321 INSP B Y AQC009
B737-53-3-0711 MAIN CABIN FLOOR BEAM UPPER SURFACE HAS CORROSION STA 986 LBL 34 & LBL 43 REPAIRED FLOOR BEAM STA 986 IAW SRM 53-70-51-2R-6 SEE PARTIAL WO RK FOR WORK ACCOMPLISHED. DATA WAS TRANSCRIBED FROM PAPER DOC AE RSALE WO 3875 NR 29571 WORK ACP BY MECH V937322 INSP BY AQC009
LANDING GEAR, MAIN AND NOSE DOES NOT RETRACT WHEN LANDING GEAR L EVER MOVED TO UP POSITION GEAR HANDLE MOVED FREELY ALL RED AND GREEN LIGHTS ON IN UP AND OFF POSITIONS. CLEANED PROXIMITY SENSORS AND CYCLED GEARS 10 TIMES REF AMM MOMENT. 32-32-00-710-801 NO DEFECTS FOUND, CLEANED AND CHECKED ADJUSTMENT OF MANUAL EXTENSION SYSTEM DOOR SWITCH REF 32-34-00-820-802, OPS CHECK GOOD NO DEFECTS FOUND AT THIS ADD EMP:U355299,U355141,U346475
ALL OF FIRST CLASS SEATS EMERGENCY LIGHT INOP.
PDA 3 AERODYNAMIC SEAL MISSING ON O/B RIGHT AFT FLAP SEE PHOTO. ADDED PHOTO. ADDED PHOTO. THIS HAS BEEN ADDRESS. SEE L/P 6823743 FOR CORRECTION.
PDA 3 RIGHT WING OUTBD AFT T/EDGE FLAP AERODYNAMIC SEAL ON LEADING EDGE MISSING/BROKEN JUST OUTBOARD OF #7 FLAP FAIRING -- SEE PHOTO PHOTO ADDED ONLY 1 MISSING -- REQUEST CDL DEFERRAL 57BZ DISPATCH DESK: 83 NAME: PAM DATE: 09-AUG-21- NEEDS SEAL CDL APPLIED EVALUATED RIGHT WING OUTBD AFT T/EDGE FLAP SEAL, NEEDS TO REMOVE FLAP LEADING EDGE PANEL TO FACILITATE REMOVAL AND INSTALLATION OF SEAL. FLAP AND ACCOMPLISH REPAIR. SEE PHOTO. RIVETED ON, WILL NEED MULTIPLE SHIFTS TO REMOVE OUTBOARD AFT RIGHT WING OUTBOARD AFT TRAILING EDGE FLAP AERODYNAMIC SEAL IS
ENG 2 FAILED TO START AFTER 2 ATTEMPTS. FOUND SPAR VALVE CB POPP ED FOUND #2 ENG FUEL SHUTOFF WIRE W1034-1001-20, BETWEEN DISCONNECTS D40034 TO D970, NAC STA 285, WD 28-21-11 DAMAGED DUE TO CHAFFING ON STRUCTURE. PERFORMED SHIELDED WIRE REPAIR PER SWPM 20-10-13 AND ADJUSTED WIRE FOR PROPER SEPERATION FROM STRUCTURE AND SLACK FOR HIGH VIBRATION AREAS PER SPWM 20-10-11, NO FURTHER FAULTS, RETURNED TO SERVICE. SPLICE REPAIR. PERFORMED ENGINE SPAR VALVE TEST REF 28-22-00, WIRE AT NEXT HEAVY MAINT VISIT AND LOG 5933217 FOR ACHIVE OF REF EA2820-02207 REV ORIG. SEE LOG 5933003 FOR DIP TO REPLACE
OVERHEAD PANEL IN 1ST CLASS PARTIALLY CAME DOWN IN FLIGHT. OVERHEAD PANEL IN 1ST CLASS WAS INSTALLED CORRECTLY. OPERATIONS CHECK GOOD.
ON WALK AROUND SVC CK. FOUND LT IB FLAP IB OF CANOE DAMAGE TO BOTTOM OF FLAP. SHEETMETAL TO INSP DAMAGE. ACCOMPLISH HFEC INSPECTION OF SKIN DENT PRIOR TO REWORK TO VERIFY NO CRACKS ARE PRESENT REF AVO ESC181014-0531-1 STEP 1. TRIMMED OUT PUNCTURE DAMAGE REF AVO ESC181014-0531-1 STEP 2. PERFORMED HFEC OF DENTED AREA PER AVO ESC181014-0531-1 STEP 1. NO CRACKS NOTED. ALSO VERIFIED CUTOUT OF PUNCTURE PER STEP 2. PERFORMED HFEC OF DENTED AREA PER AVO ESC181014-0531-1 STEP 1. NO CRACKS NOTED. ALSO VERIFIED CUTOUT OF PUNCTURE PER STEP 2. C/W IN MAINT ACTION REF AVO 181014-0531-1 STEP 3 REFORMED DENT TO AERO DYNAMIC CONTOUR. READY FOR STEP 4 HFEC 51-00-00 PROC. 23. FOUND, REF AVO ESC181014-0531-1, STEP 4 AND NDT PART 6 PERFORMED HFEC INSPECTION OF THE SKIN AFTER REWORK, NO CRACKS COMPLIED W STEP 5 OF AVO ESC181014-0531-1 PROVIDED DETAILS AND FINAL DIMENSIONS OF TRIM OUT TO ESC DEPT NS SENT TO ESC. VERIFIED COMPLETION OF STEP 5 OF AVO ESC181014-0531-1. DIMENSION NEED TO VERIFY REPAIR DOUBLER MATERIAL AS 0.090" 2024-T3 CLAD SHEET PER PART 2 STEP 1 OF AVO ESC181014-0531-1A PO 6747496 2 STEP 1 OF AVO ESC181014-0531-1A. PO 6747496. VERIFIED DOUBLER MATERIAL AS 0.090" 2024-T3 CLAD SHEET PER PART FABRICATED REPAIR DOUBLER IAW AVO ESC181014-0531-1A PART2 STEPS 2-4. ALODINED AND PRIMED NEED OK TO INSTALL 1A PART 2. OK TO INSTALL REPAIR DOUBLER. VERIFIED COMPLETION OF STEPS 1 THROUGH 4 OF AVO ESC181014-0531- PERFORMED STEPS 5
SEAT MOUNTED EMERGENCY LIGHTS INOP FROM ROW 20 TO 25 INOP. REPLACED DAMAGED LIGHT AT SEAT 20. OP-CHECKED OK. AMM 33-51-11-9 60.
LEFT AFT OVERWING EMERGENCY EXIT EXTERIOR DOOR LIGHT INOPERATIVE. REMOVED AND REPLACE THE LAMP IAW AMM 33-51-04. OPS CHECKED GOOD.
STRINGER 2L DENTED AT BS 445. ACCOMPLISHED A REPAIR IAW EC/RA 5310-07109.
DENTED CROWN SKIN AT BS 445, STRINGER 2L. INSTALLED A SKIN REPAIR IAW SRM 53-00-01, REPAIR 35, AND EC/RA 5310- 07109.
CRACK INDICATED ON LEFT HORIZONAL STAB STA HSS 101.9, 10 INCHES FROM T/E. VERIFI ED THE CRACK WITH EDDY CURRENT. CUT OUT DAMAGED AREA AND INSTALLED A DOUBLER IAW SRM 55-10-01, REPAIR 11.
LEFT HORIZONTAL STAB BEAM CRACKED AT THIRD STIFFENER FROM FWD SPAR LOCATED 33 INCHES FROM FUSELAGE. CUT OUT DAMAGE AND REPAIRED IAW ECRA 5510-02736.
TWO CRACKS INDICATED WHILE PERFORMING C-SCAN ON THE LT HORIZONAL STAB HSS 129.5 APPROXIMATELY 8 AND 14 INCHES FROM THE T/E. VERIFIED THE CRACKS WITH EDDY CURRENT. CUT OUT THE DAMAGED AREAS AND INSTALLED REPAIRS IAW SRM 55-10-0 1 REPAIR 11.
CRACK INDICATED WHILE PERFORMING C-SCAN ON LT HORIZONTAL STAB LOWER I NSPAR SKIN AT 184.70, 10 INCHES FROM T/E. VERIFIED WITH EDDY CURRENT. CUT OUT DAMAGED AREA AND INSTALLED DOUBLER REPAIR IAW SRM 55-10-0 1 REPAIR 11.
ON TAKEOFF ROLL FLIGHT CREW REPORTED STRONG SMELL OF RUBBER IN COCKPIT & CABIN. FLIGHT ATTENDANTS REPORTED A STRONG ELECT SMELL, WOULD COME & GO DURING ALL PHASES OF FLIGHT, BECAME STRONG AGAIN ON DECENT AT 4K THROUGHOUT ACFT. NO SMOKE REPORTED. TRACKED ODOR TO SEAT ROWS 12LT & 20RT. IT APPEARS THAT BOTH LED TRACK LIGHT ARE SHORTED. FOUND LIGHT TRACK AT 12LT WITH 2 BROKEN WIRES. AMM CONDITIONAL INSPECTION PERFORMED. LIGHTS & FILTERS REPLACED.