N27957
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 | 2024-05-14 – 2024-05-14 | Operator named in NTSB report |
| UNITED AIRLINES, INC. (CALA) | Operator | 2024-05-14 – 2024-05-14 | Operator named in NTSB report |
Accident & incident history
Maintenance disclosures
FOUND SEAT 44D & 54D EMER LT INOP. SEAT 44D EMER LIGHT ASSY REPLACED.LIGHT CHECK SATIS.RESTORED TO ORIGINAL CONFIG. SEAT 54D EMERGENCY LIGHT ASSY REPLCED AS PER B787-A-33-51-06-00A-520A-A/720A-A.OPERATIONAL CHECK ON SEAT 54D EMERGENCY LIGHT PASSED.
FOUND SEAT 44D & 54D EMER LT INOP. SEAT 44D EMER LIGHT ASSY REPLACED.LIGHT CHECK SATIS.RESTORED TO ORIGINAL CONFIG. SEAT 54D EMERGENCY LIGHT ASSY REPLCED IAW B787-A-33-51-06-00A-520A-A/720A-A. OPS CHECK PASSED.
STABILIZER CONTROL CHANNEL (L2) HAS BEEN DEFERRED IN COMPLIANCE WITH MEL CARD 27105. DEACTIVATED THE INOPERATIVE STAB CONTROL CHANNEL AS REQUIRED ON CARD 27105, IAW AMM DDG 27-41-03. INSTALLED INOPERATIVE STICKER ADJACENT TO AFFECTED L2 STAB CUTOUT SWITCH ON FWD CONTROL STAND. REPLACED HORIZONTAL STAB POSITION SENSOR 2 IAW AMM DMC-B787-A-27-48-01-00A-520A-A GROUND TEST PASSED.
FUMES NOTICED FROM PAX A ND CREW IN AREA OF CABIN ROW 46. DEBRIEFED CREW. SEE PAPERWORK. PER FLIGHT CREW NO FLIGHT DECK EFFECTS. INFLIGHT CREW NOTICED SMELL WENT AWAY AFTER PILOTS TURNED OFF IFE SWITCH AND RECIRC FAN PRESENT LEG SHOWS UPR RECIRC FAN FAILED IN FLIGHT. ON GND THE UPR RECIRC FAN WOULD NOT COME ONLINE, NEED TO REPLACE RECIRC FAN , M/E 79-2127-9-0001, IPC REF 21-25-16-010-941A-D. PAST IS NIS. CONDITIONAL CHECK WAS ACP PER FIM DMC B787-A-21-20-F5-72A-421A-A. REMOVED AND REPLACED UPPER RECIRCR FAN REF AMM 21-25-16.OPS CHK GOOD .RUN PACKS NO MORE FUME/SMELL NOTED
SEAT 30D WITH EMERGENCY PATH LIGHT BROKEN. REMOVED AND REPLACED PROXIMITY LIGHT. AS REF AMM TASK DMC-B787-A-33-51-06-00A-520A-A/DMC-B787-A-33-51-06-00A-720A-A ITEM GOOD FOR SERVICE. OPS TEST OK.
PROCEDURE - EMERGENCY PROXIMITY LIGHT FROM SEAT 30D DOES NOT COME ON DURING TEST. REPLACED FLOOR PRIMITY LIGHT IN REF TO AMM 33-51-06-00A-520A-A AND AMM 33-51-06-00A-720A-A. ITEM OK AFTER TEST.
BROKEN 12F SEAT PROXIMITY EMER LT. REPLACED EMER LT ASSY, OPS CHK OK.
ENG FAIL L CAUTION THE LEFT ENGINE HAS FLAMED OUT AND RUN DOWN BELOW IDLE SPEED. FIM TASK REF : G73-90-F8-01A-421B-A CMC MSG# 7332901 FLIGHT STATUS: A INTERMITTENCE CODE: M PH: CLIMB NARRATIVE: ELECTRONIC ENGINE CONTROL CHAN-B (LEFT ENG) SDR FLAGGED.
DURING MARSHELLING OF THE A/C. JET BRIDGE STATIONED AT B66 COLLIDES WITH THE LEADING EDGE OF LEFT WING CAUSING SERIOUS DAMAGE. ATTACHED ADDITIONAL PICTURES OF LEFT WING LEADING EDGE DAMAGE SLAT # 2 & #3 M&E # SEE LOG PAGES 6164370 & 6164494 FOR WORK PERFORMED.
AFTER TAKEOFF GEAR DISAGREE SOUND LIKE NOSEGEAR DOWN DOES NOT FOLLOW COMMAND W/ MX MSG 32-51001, MSG ACTIVE WENT TO INACTIVE WITH GEAR HANDLE DOWN. CREW DEBRIEF: CREW STATED GEAR HANDLE UP, GEAR DISAGREE SOUNDED LIKE GEAR DID NOT RETRACT & DOORS DID NOT CLOSE, PLACED GEAR HANDLE DOWN PER QRH & LANDING GEAR INDICATION NORMAL AND FAULTS CLEARED. AHM CONFIRMS FAULT MX "GEARS DOORS" LANDING GEAR DOORS DUE TO REPEAT FAILURE AND BOEING DIRECTION PLEASE REF. L/P''S 8409606, 8409594, 8409583 FOR COMPONENENT REPLACEMENT DIRECTION. REF LP 8416075. NOSE GEAR RETRACTION WAS PERFORMED AFTER PARTS REPLACEMENT. CLOSED LOG
GEAR DISAGREE EICAS MSG. GEAR DOOR CAUTION MSG. WITH NOSE GEAR INDICATION SHOWING HASHED. MAINTENANCE MESSAGE 32-51001. FLIGHT CREW BELIVE NLG DID NOT RETRACT WHEN COMMANDED. AIRCRAFT SUBSEQUENTLY DUMPED FUEL AND RETURNED TO LHR.
L2 DOOR EMERGENCY EXIT SIGN ABOVE DOOR INOP REF HAECO NON-ROUTIN E NO.9481658 - ORIGINATED BY EMP AS PER N27957(0957) HANGAR NON-ROUTINE PICK UP SHEET (07 MAR 2022) ITEM 1. PERFORMED BY EMP REINSTALLED THE ELECTRICAL CONNECTOR TO DR 2L EXIT MARKING SIGN L3351003 AND PERFORMED OPERATIONAL TEST OF THE EMERGENCY LT FOUND NORMAL REF TO AMM 33-51-02-00A-72 0A REV 158 & AMM 33-51-00-00C-320A REV 158. IDT BY
DURING PERFORM EMERGENCY LIGHT SYSTEM FULL TEST FOUND PAX SEAT 30DF TO 35DF EMERGENCY LIGHT NOT COME ON REF HAECO NON-ROUTINE NO.9479642 - ORIGINATED BY EMP EA 4400-01112 REV A OP001 . PERFORMED BY EMP REFER FIM 33-50-F1-W5A-421A-A REV 140 AND SSM 33-51-11-0A-054A-D REV 136 PERFORMED T/S FOUND PAX SEAT 31DF INSEAT WIRE HARNESS FAULTY. THAT HARNESS CONNECTOR J,PIN 02 PUSHED BACK DUE TO THE LOCK BROKEN. REPLACED THE WIRE HARNESS AND PERFORMED EMERGENCY LIGHT SYS FULL TEST. THE RESULT FOUND "PASSED". PAX SEAT 30DF TO 35DF EMERGENCY LIGHT COME ON REFER AMM 33-51-00-07A-343A-A REV 157. SDR SHOULD BE CHANGE TO Y.
LEFT HF INOP MAINT MESSAGES 42-59471 AND 23-19401. MESSAGES NOT ACTIVE UPON AND AMM 23-11-05. HF OPERATIONAL TEST CHECKS GOOD. ARRIVAL. REPLACED LEFT HF TRANSCEIVER PRECAUTIONARY. RESET ROTABLE PARTS CHANGE WAS INDICATED - TT # 1195254 SN OFF 8018 CROWN DOOR 4L CCS REMOTE DATA CONCENTRATOR 17. REF FIM TASKS DMC-B787-A-42-40-F1-AVA-421A-A. DMC-B787-A-23-10-F1-38A-421A-A. TRANSCEIVER, HF OFF 78-2311-9-0001 8018 ON 78-2311-9-0001 4002
M LAV UNDER SCUFF PLATE BEAM AND FRAME CORROSION REF NON-ROUTINE NR.9426069. SPEC NO.B787-25-3-0069. M LAV UNDER SCUFF PLATE BEAM AND FRAME REPLACED AS PER ECRA 2541 -01547 REV. ORIG.
THE LEFT FWD, LEFT AFT, RIGHT FWD AND RIGHT AFT FLOOR PROXIMITY LIGHT AT GALLEY G5 FOUND CRACKED REF NON-ROUTINE NO.9426061. REPLACED G5 GALLEY LT FWD, LT AFT, RT FWD, RT AFT FLOOR PROXIMITY LIGHT. PERFORMED OP TEST OF EMERGENCY LT, FOUND NORMAL REF AMM 33-51-06-00A-720A REV.144.
THE RIGHT FLOOR PROXIMITY LIGHT AT DOOR 3 GALLEY G9B FOUND CRACKED REF NON-ROUTINE NO.9426065. REPLACED DOOR 3 G9B GALLEY RT 2 EA FLOOR PROXIMITY LIGHT. PERFORMED OP TEST OF EMERGENCY LT FOUND NORMAL REF AMM 33-51-06- 00A-720A REV.144.
THE LEFT AND RIGHT FLOOR PROXIMITY LIGHT AT DOOR 3 GALLEY G9A FND CRACKED REF NON-ROUTINE NO.9426066. REPLACED DOOR 3 GALLEY G9A LT AND RT TOTAL 4 EA FLOOR PROXIMITY LIGHT. PERFORMED OP TEST OF EMERGENCY LT, FOUND NORMAL REF AMM 33 -51-06-00A-720A REV.144.
THE LEFT AFT, RIGHT FWD AND RIGHT AFT FLOOR PROXIMITY LIGHT AT DOOR 1 OFCR PANEL FOUND CRACKED REF NON-ROUTINE NO.9426059 - SPEC NO. B787-33-3-0002. THE LEFT AFT, RIGHT FWD AND RIGHT AFT FLOOR PROXIMITY LIGHT AT DOOR 1 OFCR HAD BEEN REPLACED, PERFORMED OPERATIONAL TEST OF EMERGENCY LIGHT, THE RESULT WAS ''SATIS'' REF TO AMM 33-51-06-00A- 720A-A REV.144.
THE LEFT FWD, RIGHT FWD AND RIGHT AFT FLOOR PROXIMITY LIGHT AT GALLEY G4 FOUND CRACKED REF NON-ROUTINE NO.9426060 - ORIGINATED BY, SPEC NR.B787-33-3-0002. REPLACED G4 GALLEY LT FWD, RT FWD, RT AFT FLOOR PROXIMITY LIGHT, PERFORMED OP TEST OF EMERGENCY LT, FOUND NORMAL REF AMM 33-51- 06-00A-720A REV.144.
THE LEFT FLOOR PROXIMITY LIGHT AT DOOR 3 GALLEY G9B FND CRACKED REF NON-ROUTINE NO.9426063. REPLACED DOOR 3 G9B GALLEY LT 2 EA FLOOR PROXIMITY LIGHT. PERFORMED OP TEST OF EMERGENCY LT FOUND NORMAL REF AMM 33-51-06- 00A-720A REV.144.
WINDOW HEAT RT FWD ADVISORY LOSS OF RIGHT FORWARD WINDOW HEAT (PRIMARY). FIM TASK REF: 31-90-F8-01A-421B-A CMC MESSAGE 3032413. FLIGHT STATUS: LT INTERMITTENCE CODE: M PH: CRUISE NARRATIVE: 24 PDHM OPS (GPM L8) CMC MESSAGE 3032413 FLIGHT STATUS: LT INTERMITTENCE CODE: M PH: CRUISE NARRATIVE: 24 PDHM OPS (GPM L8) CMC MESSAGE 3032413 FLIGHT STATUS: LT INTERMITTENCE CODE: M PH: CRUISE NARRATIVE: REF B787 MM TASK DMC-B787-A-56-11-01-00A-52A-A STARTED REMOVAL OF FO'S WINDSHIELD. WINDOW IS DISCONNECTED AND READY TO BE REMOVED FROM WINDOW FRAME. REMOVED DAMAGED WINDOW. STARTED WINDOW INSTALLATION, REF DMC-B787-A-56-11-01-00A-720A-A, STOPPED AT STEP 4E, INSTALLED BOLTS LOOSELY ON TOP SIL. ROTABLE PARTS CHANGE WAS INDICATED-TT NR 1067244 SN OFF 1246 WINDSHIELD, NR 1 OFF 78-5610-9-9002 1246 ON 79-5611-9-0002 4168. REPLACED RIGHT FWD WINDSHIELD, REF DMC-B787-A-56-11-01-00A-520A-A, HEAT TEST PASS. ROTABLE PARTS CHANGE WAS INDICATED-TT NR 1212125 SN OFF 4168 WINDSHIELD, ASSEMBLY OFF 79-5611-9-0002 4168 ON 79-5611-9-0002 3250, REF AMM FLIGHT COMPARTMENT NR 1 WINDOW-INSTALLATION, REFERENCE: DMC-B787-A-56-11-01-00A-720A-A.
LEFT ENG HIGH VIBRATION 7.0. OPERATED AT 66 N1 VIB 2.0. REVIEW OF CMC NIL EXCEEDANCES RECORDED REF CREW REPORT AIRCAFT WAS OPERATING IN ICING CONDITIONS. REF.FTD 71-13002. NIL MSG NOTED HI VIBRATION NOTED. INSPECTION CARRIED OUT AS PER AMM G71-00-00-3A-280A NIL DEFECTS NOTED ENGINE GRD RUN CARRIED OUT L & R ENGINES ALL PARAMETERS AND INDICATIONS NORMAL NIL VIBRATION.
FIRST OFFICER'S EMERGENCY FLASHLIGHT INOPERATIVE. REMOVED AND REPLACED THE BATTERY. OPS CHECKED GOOD.
DURING EMERGENCY LIGHT TEST, FOUND FLOOR LIGHTING AT ROWS 1 & 2 INOPERATIVE. R & R WCU AT SEAT 1F, OPS CHECKED GOOD. WORK IAW AMM 33-51-00-00C-320A.