N29975
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 | 2024-12-03 – 2024-12-03 | Operator named in NTSB report |
| UNITED AIRLINES, INC. (CALA) | Operator | 2024-12-03 – 2024-12-03 | Operator named in NTSB report |
Accident & incident history
Maintenance disclosures
RT PACK MODE ELEC ODOR IN CONDITION AIR PERFORMED CONDITIONAL INSPECTION IAW AMM 05-51-99-99A-282A-A, NO EVIDENCE OF ODOR PRESENT INSPECTED AREA NO DAMAGED FOUND. DEBRIFED CREW THAT ODOR WAS PRESENT AFTER ENG START & ODOR WENT AWAY, AFTER RT ACM FAILED WITH STATUS MESSAGE. STATUS MSG PACK ACM R PRESENT WITH MX MSG 21-65213 RT ACM FAILED. REMOVED THE RT ACM. DURING REMOVAL OF THE RT ACM, DEBRIS WAS FOUND COMING FROM THE ACM INTO THE BEARING COOLING HOSE. R & R RT ACM IAW AMM DMC-B787-A-21-52-02-02A-720A-A UP TO 1 D POST INSTALLATION TEST. ACCOMPLISHED LEAK CHECK IAW DMC-B787-A-21-52-02-02A-720A-A AND AMM B787-A-20-10-79-00A-280C-A NO LEAKS FOUND. OPS TEST PASSED.
R4 DOOR INADVERTENTLY DEPLOYED WITHOUT INFLATION SLIDE PACK DURING DO DEACTIVATION R4 DOOR EMERGENCY SYSTEM- INSTALLING SLIDE GRIT BAR SAFETY PIN REF TO HAECO NON-ROUTINE NO.9457167, R4 DOOR EPAS B OTTLE AND EPAS MODULE REPLACED AND TESTED 'SATIS' REF TO AMM 52- 11-24-01A-520A/720A REV 208, AMM 52-11-21-00A-520A/720A REV 208. R4 DR SLIDE REPLACED REF TO AMM 25-66-00-01B-521B REV 208, AMM 25-66-01-01B-720A REV 208.
CPRSR DEFLECTOR DOOR L LEFT CABIN AIR COMPRESSOR AIR INLET DOOR NOT IN COMMANDED POSITI ON OR LOSS OF POSITION FEEBACK.DB LEFT PACK CONTROL UNIT CHANNEL 2 AHM UPDATE: {21-61611} *LEFT CABIN AIR COMPRESSOR DEFLECTOR DOOR ACTUATOR IS FAILED* REF FIM DMC-B787-A-21-50-F1-36A-421A-A. FAULT: 21-61611 HAVE MX MSGS 21-61611 AND 21-66181 FOR LEFT A/C PACK BLOCKED. T/S PER FIM 21-50-F1-36A-421A. TEST FAILED LEFT CAC DOOR ACUATOR. ALSO NOTED LEFT CAC DEFLECTOR DOOR SHOWS NO DATA ON PACK SYNOPTIC PAGE. REMOVED AND REPLACED CABIN AIR COMPRESSOR INLET DEFLECTOR DOOR ACTUATOR IN ACCORDANCE WITH AMM REFERENCE DMC-B787-A-21-51-16-00A-520A-A/DMC-B787-A-21-51-16-00A-720A-A. PERFORMED GROUND TEST 21 CABIN AIR CONDITIONING / TEMP CONTROL SYSTEM. TEST PASSED. DEFLECTOR DOOR OPERATES NORMAL. REMOVED AND REPLACED CABIN AIR COMPRESSOR INLET DEFLECTOR DOOR ACTUATOR IN ACCORDANCE WITH IRCRAFT MAINTENANCE MANUAL REFERENCE DMC-B787-A-21-51-16-00A-520A.
F/A S RPRTED FUMES AND BURNING ODOR RGHT AFTR T/O ALSO HEAT FRM FLR PER FLIGHT CREW, FLIGHT ATTENDANTS REPORT SMELL OF BURNING ODOR FROM DOOR 1 TO DOOR 3 TWO MINUTES AFTER TAKEOFF, NO SMOKE NOTED. FLIGHT CREW THEN TURNED BOTH REC FANS AND IFE OFF, BURNING ODOR REMAINED. FLIGHT ATTENDANTS ALSO NOTED THAT THEY FELT HEAT FROM UNDERNEATH FLOOR AREA AT DOOR 1. ACCOMPLISHED SMOKE OR FUMES IN CABIN - FAULT ISOLATION REFERENCE: DMC-B787-A-21-20-F5-72A-421A-A. UNABLE TO DUPLICATE FAULT. ALSO OPERATED ALL OVENS AND COFFEE MAKERS WITH NO OBSERVED FAULTS. OPERATED NGS SYSTEM WITH NO OBSERVED ODOR OR HEAT IN CABIN. PRECAUTIONARY REPLACED AIR PURIFICATION HEPA FILTERS. LEAK CHECK GOOD. REF AMM DMC-B787-A-21-25-14-00B-720A-A REF AMM 05-51-99-99A-282A-A, CONDITIONAL INSPECTION FOR SMOKE OR FUMES IN CABIN REFERS TO ACCOMPLISH FIM DMC-B787-A21-20-F5-72A-421A-A. COMMUNICATED WITH TOMC CONTROLLER GORMAN AND AGREED SUFFICIENT MAINTENANCE ACTION PERFORMED TO CLOSE LOG.
FOUND WEL BAT POWER DEGRADED AT CLASSES 31, 30, 23, 20, 19, 18, 16, 13, 12, AND 9. REQUIRE BAT REPLACEMENT. AMM 33-51-07REMOVED AND REPLACED WEL BAT CLASS 20 REF AMM 33-51-07. OPS CHECK GOOD. REMOVED AND REPLACED WEL BAT CLASS 13 REF AMM 33-51-07. OPS CHECK GOOD. REMOVED AND REPLACED WEL BAT CLASS 20 REF AMM 33-51-07. OPS CHECK GOOD. REMOVED AND REPLACED CLASS 23 WELS CONTROL UNIT BATTERY PER DMC-B787-A-33-51-07. OPS CHK GOOD. REMOVED AND REPLACED CLASS 9 WELS CONTROL UNIT BATTERY PER DMC-B787-A-33-51-07. OPS CHK GOOD. REMOVED AND REPLACED CLASS 16, 18, 30, AND 31 WELS CONTROL UNIT PREVIOUSLY REJECTED IN ERROR, ALL IDT REQUIREMENTS C/W. NO DISCREPANCIES.
VMO GEAR DOWN STATUS UNABLE INC SPEED PAST 270KTS CLEARED EICAS MEMO MESSAGE. RESET GEAR DOWN ON MSC TO NORMAL. REF FIM TASK DMC-B787-A-31-50-F1-14A-421A-A.
VIBRATION INDICATION (ENGINE) HIGH (BLACK NUMBERS ON WHITE BOX) FIM TASK REF : 31-90-F8-03A-421B-A CMC MSG# 7711602 FLIGHT STATUS: A INTERMITTENCE CODE: M PH: CRUISE NARRATIVE: ENGINE MONITOR UNIT (RIGHT ENGINE) REVIEW CHRONIC HIST (CHAPTER 77). (CLOSED FUP L/P8233491). PERFORMED FIM DMC-B787-A-G77-30-F1-50A-421A-A. PERFORMANCE PAGE. FOUND MULTIPLE RIGHT ENGINE VIBRATION EXCEEDENCES. PERFROMED IDLE ENGINE RUN, VIB WITHIN NORMAL PARAMETERS. REF AMM 71-00-00. NO REPORTS OF VIBRATION FELT IN FLIGHT DECK. T-S REF FIM MAINTENANCE MESSAGE 77-11602 - FAULT ISOLATION REFERENCE: DMC-B787-A-G77-30-F1-50A-421A-A. WORKED WITH LOG PAGE 8270613. W14 HARNESS AND EMU REPLACED.
PAX OXYGEN POWER CHANNEL 1 RPDU CIRCUIT BREAKER FOR A PSU ZONE IS OPEN IN ANY OF THE 9 PSU ZONES. CIRCUITS ARE NORMALLY UNPOWERED SO OPEN CIRCUIT BREAKERS ARE USUALLY CAUSED BY MAINTENANCE OR TEST ACTIONS. FIM TASK REF : 31-90-F8-01A-421B-A CMC MSG# 3510029 FLIGHT STATUS: A INTERMITTENCE CODE: H PH: CRUISE NARRATIVE: 31 DCA OPS (RIGHT 2) UPLOADED PICTURES. UPLOAD PICTURES OF RPDU 42. FOUND MT-MSG:24-37817 AS RPDU 82 GATEWAY FAIL AFTER TRY TO INSTALL SOFT WARE TO RPDU 42 STANDARD MICRO PROSESSOR. FOLLOWED FIM TASK DMC-B787-A-24-70-F2-DLA-421A-A, REPLACED RPDU M1 GATEWAY CARD PER AMM DMC-B787-A-24-71-05-00A-720A-A, SOFTWARE INSTALLED PER AMM DMC-B787-A-24-71-10-06A-750A-A, SOFTWARE CONFIGURATION CHECK OK.
EICAS MSG ENG CORE ANTI .ICE L AT APPROX. 8000 FT. BOOSTER ANTI-ICE VALVE (LT ENG) FAILED CLOSED REF FIM DMC-B787-A-G75-00-F0-23A-421A-A. REFER TO LOG 7082521 FOR BOOSTER ANTI ICE ON LT ENG REF DMC-B787-A-G75-11-02 & PRESS SENSOR REF AMM G75-11-02. ACCOMP TEST 18, OPS TEST REF DMC-787-A-G71-00-00-23B-320A-A. TEST PASSED. ENG BOOSTER ANTI-ICE VALVE FAILED CLOSED. LOSS OF ANTI-ICING AT ENGE CORE INLET. AHM BOOSTER ANTI-ICE VALVE (LT ENG) FAILED CLOSED REF FIM DMC-B787-A-G75-00-F0-23A-421A-A. REPLACED #1 ENG BAI PRESS SENSOR REF AMM G75-11-02. OPS TEST GOOD. R & R LT ENG BOOSTER ANTI ICE VALVE REF DMC-787-A-G75-11-02 AND PERFORMED TEST 18 DMC-787-A-G71-00-00-23B-320A-A. TEST PASSED.
FOUND SEAT 8D EMERGENCY FLOORY PROXIMITY LIGHT ASSY LEN CRACKED AND DISLODGED. WORKPERFORMED IN SIAEC SIN HGR NR ELE0004 BY V941778 SEAT 8D EMERGENCY FLOOR PROXIMITY LIGHT AY REPLACED WORK PERFORMED IN SIAEC SIN HGR NR ELE0004 AS PER AMM 33-51-06-00A-520A-A/720A-A BY V941778 INSTALLATION TEST (OPS TEST) PERFORMED AS PER AMM 33-51-00-00C-320A-A. FOUND SATIS.
FOUND AIRCRAFT FLOODED FROM R2 DOOR TO R4 DOOR UPON FURTHUR INSPECTION FOUND ENTIRE AFT CARGO FLOODED SEE AFT CARGO PIX FOUND WATTER IN REAR ENE COMPARTMENT WATER FOUND INSIDE AFT E&E BAY. TRAYS ON TOP OF BOXES HAVE EVIDENCE OF WATER. IMAGES ATTACHED. SPILLED LIQUID IS POTABLE WATER FROM AFT GALLEY AREA COFFEE MAKER. STANDING WATER IN CABIN AREAS WERE REMOVED AS PER STEP 2.A(5). AFT CARGO CENTER CEILING PANELS REMOVED TO FACILITATEM DRAINAGE AS PER STEP 2A(6). COMPLIED WITH EC/RA #2011-01000 UP REF L/P 4455350 FOR AFT GALLEY RIGHT SIDE COFFEEMAKERS R&R AT GALLEY POSITIONS 608, 609, 610. TO STEP 2.A (6). EQUIPMENT IN AFT E&E BAY WILL REQUIRE INSPECTION AS PER STEP 2.A(7).PERFORMED ECRA 2011-01000 GALLEY SPILL IN-DEPTH CLEAN UP FOR LARGE SPILL AREA. VENTILATED CABIN, AFT CARGO BAY, AND AFT E/E. REMOVED EXCESS WATER IN CABIN, AFT CARGO BAY, AFT EQUIPMENT BAY DRIP TRAYS AND VERIFIED NO WATER PRESENT ON ANY ANY WIRING. PERFORMED INSPECTION OF AFT ELECTRONIC EQUIPMENT BAY IAW AMM DMC-787-A-05-41-33B-311A-A, ZONES 145, & 146. VERIFIED AREA IS CLEAR OF ALL WATER. C/W ECRA 2011-01000 GALLEY SPILL SECTION 2.B.19. C/W ECRA 2011-01000 AC SECTION 2.B GALLEY WATER SPILL IN-DEPTH CLEANUP FROM STEP 20 THRU OMPLETION. COFFEEMAKER, OFF 10-2525-9-0011 9310 ON 0000 COFFEEMAKER, OFF 10-2525-9-0011 9310 ON 10-2525-9-0011 7002 COFFEEMAKER, OFF 10-2525-9-0011 2706 ON 10-2525-9-0011 0710 COFFEEMAKER, OFF 10-2525-9-0011 2706 ON 0000 DUE TO LEAK FROM AFT GALLY COFFEEMAKERS RIGHT SIDE COFFEE MAKERS WERE REPLACED 608,609& 610 IAW AMM 25-32-00 NO DEFECTS NOTED AT THIS TIME. ORIGINAL SUBMISSION DATE: 5/1/2023
LH RAKED WING TIP ASSY P/N 191Z0100-901 HAS BEEN DAMAGED BEYOND REPAIR. REPAIR AND/OR REPLACEMENT PERFORMED BY BOEING UNDER REPAIR ORDER# UAL-RE-2000849. ESFR WAS INPUTTED. SFR# 1024065.