N38955
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
DURING NR 1 ENGINE WASH, NOTED A 10TH OGV DAMAGED. CONFIRMED 10TH OGV DAMAGED WITH A CRACK MEASSURING 2 INCH. REPLACED AS REQUIRED, AS REFERENCE AMM DMC-B787-A-G72-21-03-01A-520A-A FOR REMOVAL AND AMM DMC-B787-A-G72-21-03-01A-720A-A FOR INSTALLATION. NO FURTHER ACTIONS ARE NEEDED, ITEM OK.
DURING ENGINE NR 1 WASH, NOTED ON ACOUSTIC OUTER PANEL DAMAGED. AT 3 O'CLOCK POSITION. CONFIRMED DAMAGE AT ACOUSTIC OUTER PANEL DAMAGED ABOUT 3 O'CLOCK, MEASURING 18.5"LENGTH X 4.5"WIDE X 1" DEEP. DAMAGE NOT COVERED BY SRM LIMITS. REF AMM DMC-B787-A-G72-21-01-02A-280A-A DAMAGE BEYOND THE LIMITS. REMOVED AND REPLACED ACOUSTIC OUTER PANEL POSITION 3 O'CLOCK AS IAW DMC-B787-A-G72-21-01-02A-520A-A AND DMC-B787-A-G72-21-01-02A-720A-A, ACFT OK TO CONTINUE.
DURING ENGINE NR 1 WASH NOTED FAN BOOSTER ACOUSTICAL PANEL BETWEN POSITION 4 O'CLOCK MISSING. CONFIRMED MISSING PANEL LINER ACOUSTIC . REMOVED AND INSTALLED FAN BOOSTER ACOUSTIC PANEL REF AMM DMC-B787-A-G72-22-04-00A-520A-A AND DMC-B787-A-G72-22-04-00A-720A-A, ACFT OK TO CONTINUE.
PACK R PACK IS NOT RUNNING DUE TO PACK FAILURE. DB RIGHT PACK CONTROL UNIT CHANNEL 2 REF. LP #9305205 CPRSR DEFLECTOR DOOR R RIGHT COMPRESSOR AIR INLET DOOR NOT IN COMMANDED POSITION OR LOS S OF POSITION FEEBACK. DB RIGHT PACK CONTROL UNIT CHANNEL 1 INBOUND CREW DEBRIEF OBSERVED R PACK FAIL EICAS MESSAGE AGL 1000. ATTEMPTED AIR CON RESET, RESET DID NOT WORK, FOUND MAINTENANCE MESSAGE 21-61633 AND 21-61613 LATCHED. PERFORMED R PACK AIR OFF SYSTEM TEST REF 21-50-F1-37A-421A. TEST FAILED. MESSAGES STILL ACTIVE. ATTACHING ACTUATOR. R & R RF CAC INLET DEFLECTOR DOOR ACUATOR IAW AMM 21-51-16. OP CHECK AND GROUND TEST PASSED.
DURING PVC, NOTED EMERGENCY LIGHT AT SEAT 11F INOP REF HAECO NON-ROUTINE NO.9458823, PERFORM INSPECTION OF IN-SEAT HARNESS FOUND THE CONNETOR LOOSE. CONNECTED AND PERFORM THE TEST OF EMERGENCY LIGHT. THE RESULT FOUND NORMAL.IAW AMM 33-51-00-00B-320A-A, REV.208, CMM 25-00-00 & F29H08-005-020 REV.8.
12D SEAT EMERGENCY PATH LIGHT LENS MISSING. PERFORMED INSTALLATION OF THE EMERGENCY PATH LIGHT LENS POS. 12D SEAT REFER AMM DMC-B787-A-33-51-06-00A-720A-A. ITEM TESTED. ITEM OK. GOOD FOR SERVICE.
AT LOW SPEED ON TO HYD C2 EICAS. ABORTED TAKE OFF AT 60 KTS. NO RTO BRAKING FOUND R1 ATRUC CONTACTOR TRIPPED. CONTACTOR SET TO LOCK AND THEN AUTO AS PER FIM 24-20-F2-N0A-421A. AFTER RESET, CMCF SHOWED NOT ACTIVE. STATUS CLEARED CAPT REPORTS NO BRAKE MESSAGES HIGHEST BRAKE WAS 2.6. IAW AMM 5-51-14-01A-280A BRAKE TEMPS STAYED IN NORMAL RANGE. HIGH ENERGY STOP INSPECTION NOT REQUIRED.
DOOR 3L SLIDE BUSTLE COVER NEEDS REATTACHED REATTACHED BUSTLE COVER AT DOOR 3L REF AMM DMC-B787-A-52-11-24-03A-720A-A
EMERGENCY LIGHT ON SEAT 11D AND 30D INOP. DEFERED EMERGENCY LIGHT ON SEAT 11D AND 30D INOP. SEAT EMERGENCY PROX LIGHTS 11D, 30D PLACARDED FOR MEL.
CREW OXYGEN LOW ADVISORY CREW OXYGEN PRESSURE IS LOW. POSSIBLE CAUSES ARE; CREW OXYGEN US AGE, LEAKAGE IN TUBING, OR CYLINDER SHUTOFF VALVE IS CLOSED. O2 IN COCKPIT READS 0. INSPECTED CREW O2 BOTTLE, #1 BOTTLE INDICATED ZERO PSI. #2 BOTTLE WAS AT 1500 PSI. OVERBOARD DISCHARGE DISK APPEARS TO REMAIN INTACT. INSPECTED #1 CREW O2 BOTTLE, ALL LINES ARE TIGHT. REMOVED AND REPLACED #1 CREW O2 BOTTLE REF. DMC-B787-A-12-15-08-00B-200A-A. LEAK CHECKED ALL LINES, FOUND NO LEAKS. TESTED O2 IN FLIGHT DECK FROM ALL MASKS, O2 FLOWS FREELY AND DOESNT DROP. ENSURED PSI DIDNT CHANGE FOR 2 HRS. OK FOR CONTINUED USE.
FOUND FOLLOWING PAX OXYGEN CYLINDERS INITIATORS EXPIRED.20AC,21AC,22AC,46ABC,47ABC,48ABC,49ABC,46DEF,47DEF, DR2 CROSS AISLE, DR2L AFT, DR4 LEFT AFT,DR4 CROSS AISLE, DR4L AFT.TOTAL OF 14 INIATORS. ALL 14 INITIATORS REPLACED FOUND SATISFACTORY IAW CMM 35-22-29. INSTALLATION TEST C/OUT FOUND SATISFACTORY IAW AMM 35-21-00. REFER EC/RA #3520-01774 FOR INITIATOR REPLACEMENT.
PSU 47JKL FOUND BLINKING DURING OXYGEN 3R TEST. INITIATOR REPLACED IAW CMM 35-22-29 & INSTALLATION TEST C/OUT FOUND SATISFACTORY IAW AMM 35-21-00.REFER EC/RA #3520-01774 FOR INITIATOR REPLACEMENT.
ELEC ATU LT AUTOTRANSFORMER FAILED. POST VFSG L1 FEEDER CABLE AND TERMINAL BLOCK REPAIR, PERFORMED FIM 24-20-F0-B5A-421A INCLUDING CMCF GROUND TEST- 24 ELEC POWER GENERATION SYSTEM, SYSTEM TEST, LEFT ENGINE GENERATOR 1 UNBALANCED UV TEST. ALSO, PERFORMED LEFT ENGINE IDLE RUN REF AMM G71-00-00-12A-364A AND VFSG L1 OPS TEST REF AMM 24-21-00-00B-320A. PASSED ALL TESTS AND HANDLED OPERATIONAL LOADS WITH NIL FAILURES. SYSTEM NOW NORMAL.
OIL QUANTITY INDICATION (ENGINE) SHOWS LOW FIM TASK 31-90-F8-03A-421B-A. RT ENGINE TEST NR 1 - DRY-MOTOR - LEAK TESTED IAW MM B787-A-G71-00-00-48A-364A-A. LEAK CONFIRMED AT FWD FACE ACCESSORY G/B OIL NOZZLE PACKING REF 72-64-00-03 ENG AGB ASSY-HOUSING, OIL NOZZLES, & CONNECTING PIN INSPECTED IAW MM TO FULL. DMC-B787-A-G71-00-00-12A-364A-A TEST NR 3 - IDLE - DMC-B787-A-G71-00-00-35A-280A-A. REPLACED AGB OIL NOZZLE 038D2 LEAK TESTED, NO LEAKS. OIL QTY SERVICEABLE. IAW MANUAL GEK112851 - REV 36, EM 72-64-00 ACCESSORY G/B. OIL SERVICED INSP OF AGB OIL NOZZLE 038D2 INSTALLATION IAW MANUAL GEK 112851 REV 36. ACCOMPLISHED IDLE ENGINE RUN & LEAK CHECKED IAW AMM 71-00-00-12A-364A-A, NO LEAKS FOUND.
ENG OIL SYS R ENGINE OIL PRESSURE IS LOW INDICATING PROBLEM WITH ENGINE OIL PUMP. ELECTRONIC ENGINE CONTR OL CHAN-B (RT ENG) CREW MENTIONS ENGINE SHUTDOWN WHEN ENGINE AT 3 PSI. ENSURE WINDMILL INSPECTION PERFORMED IAW AMM, LEAK CONFIRMED AT FWD FACE ACCESSORY GEARBOX OIL NOZZLE PACKING. ENGINE TEST, DRY-MOTOR, LEAK TEST CARRIED OUT. LEAK CONFIRMED AT FWD FACE ACCY GEARBOX OIL NOZZLE PACKING IAW 72-64-00-03, ENG AGB ASSY-HOUSING, OIL NOZZLES, AND CONNECTING PIN (ACCESSORYGEARBOX ONLY). ENGINE RUN AND LEAKED CHECKED AS PER AMM 71-00-00-12A-364A-A NIL LEAKS FOUND. REPLACED AGB OIL NOZZLE 038D2 IAW MANUAL GEK112851 - REV 36, 10/31/2022EM 72-64-00 ACCESSORY GEARBOX ASSEMBLY - DISASSEMBLY. OIL SERVICED TO FULL.
M/D LAV M LWR THRESHOLD BEAM FOUND CORROSION REF NON-ROUTINE NR 9423357. M/D LAV M LWR THRESHOLD BEAM REPLACED AS PER ECRA 2541-01533 REV.
M/D LAV L LWR THRESHOLD BEAM FOUND CORROSION REF NON-ROUTINE NR 9423359. M/D LAV L LWR THRESHOLD BEAM REPLACED AS PER ECRA 2541-01534 REV.
M/D LAV M O/B VERTICAL FRAME FOUND CORROSION REF NON-ROUTINE NR 9423362. M/D LAV M O/B VERTICAL FRAME REPLACED AS PER ECRA 2541-01533 REV.
M/D LAV L O/B VERTICAL FRAME FOUND CORROSION REF NON-ROUTINE NR 9423364. M/D LAV L O/B VERTICAL FRAME REPLACED AS PER ECRA 2541-01534 REV.
THE RIGHT AFT FLOOR PROXIMITY LIGHT AT G5 GALLEY FOUND CRACKED, REF NON-ROUTINE NR 9423471, SPEC NO. B787-33-3-0002. REPLACED THE RIGHT AFT FLOOR PROXIMITY LIGHT AT G5 GALLEY. PERFORMED INSTALLATION TEST OF EMERGENCY LIGHT, THE RESULT WAS ''SATIS'', REF TO AMM 33-51-06-00A-720A-A REV 143.
THE LEFT FWD, RIGHT FWD AND RIGHT AFT FLOOR PROXIMITY LIGHT AT DOOR 1 OFCR PANEL FOUND BROKEN, REF NON-ROUTINE NR 9423470, SPEC NO.B787-33-3-0002. REPLACED THE LEFT FWD, RIGHT FWD AND RIGHT AFT FLOOR PROXIMITY LIGHT AT DOOR 1 OFCR. PERFORMED INSTALLATION TEST OF EMERGENCY LIGHT, THE RESULT WAS ''SATIS'', REF TO AMM 33-51-06-00A-720A-A REV 143.
THE RIGHT AFT FLOOR PROXIMITY LIGHT AT G9 FOUND CRACKED, REF NON- ROUTINE NR 9423472, SPEC NR B787-33-3 -0002. REPLACED THE RIGHT AFT FLOOR PROXIMITY LIGHT AT G9. PERFORMED INSTALLATION TEST OF EMERGENCY LIGHT THE RESULT WAS ''SATIS'', REF AMM 33-51-06-00A-720A-A REV 143.
THE LEFT AFT FLOOR PROXIMITY LIGHT AT G9 FOUND CRACKED, REF NON- ROUTINE NR 9423473, SPEC NO.B787-33-3 -0002. REPLACED THE LEFT AFT FLOOR PROXIMITY LIGHT AT G9. PERFORMED INSTALLATION TEST OF EMERGENCY LIGHT THE RESULT WAS ''SATIS'', REF TO AMM 33-51-06-00A-720A-A REV 143.
THE FWD FLOOR PROXIMITY LIGHT AT SEAT 3D FOUND INOPERABLE, REF NON-ROUTINE NR 9423452. THE FWD FLOOR PROXIMITY LIGHT AT SEAT 3D HAD BEEN RETERMINATED. PERFORMED OPERATIONAL TEST OF EMERGENCY LIGHT, THE RESULT WAS ''SATIS'', REF TO AMM 33-51-00-003-320A-A REV 143 & SWPM 20-30-15 REV 75.
THE WALL-MOUNTED FLOOR PROXIMITY LIGHT BESIDE CANTER ATTENDANT SEAT FOUND CRACKED, REF NON-ROUTINE NR 9423474, SPEC NO.B787-33-3-0002. REPLACED THE WALL-MOUNTED FLOOR PROXIMITY LIGHT BESIDE CENTER ATTENDANT SEAT. PERFORMED INSTALLATION TEST OF EMERGENCY LIGHT THE RESULT WAS ''SATIS'', REF TO AMM 33-51-06-00A-720A-A REV 143.
THE WALL-MOUNTED FLOOR PROXIMITY LIGHT BESIDE CANTER ATTENDANT SEAT FOUND CRACKED, REF NON-ROUTINE NR 9423474, SPEC NO.B787-33-3-0002. REPLACED THE WALL-MOUNTED FLOOR PROXIMITY LIGHT BESIDE CENTER ATTENDANT SEAT. PERFORMED INSTALLATION TEST OF EMERGENCY LIGHT THE RESULT WAS ''SATIS'', REF TO AMM 33-51-06-00A-720A-A REV 143.
EMERGENCY LIGHTS IN OFCR DID NOT ILLUMINATE WHEN ACTIVATED. ACCOMPLISHED KEY TRANSFER FOR CLASS 30 WCU. FAULT 33-12130 CLEARED AND OPS CKD GOOD. REF AMM DMC-B787-A-33-51-07-06A-950A-A
DISCOVERED A PUNCTURE ON THE LT FUSELAGE SKIN APPROX 70 INCH FROM T HE FWD EDGE OF THE L2 DOOR. REPAIRED IAW ECRA 5330-06345.
EMER FLASHLIGHT AT 1R INOP REPLACED BATTERY.
EMERGENCY AISLE LIGHT ON SEAT 16F BROKEN. REMOVED AND REPLACED EMERGENCY LIGHT. OPS CHECKED NORMAL IAW MM 33-5 1-06-00A-520A.
CAPTAINS EMERGENCY FLASHLIGHT INOPERATIVE. REPLACED CAPTAIN`S EMERGENCY FLASHLIGHT.
LOSS OF CABIN PRESSURIZATION CLIMBING THRU 28,000 FEET FOUND DUCTING JUST FWD OF AFT E&E COOLING OVERBOARD VALVE IN AFT PIT DAMAGED. REMOVED AND REPLACED AFT E&E COOLING VALVE AND DUCT REF DMC-B787-A-21-27-48-00A-720A-A PERFORMED CMCF GROUND TEST "PASSED" GROUND TEST PASSED. PRESSURIZED AIRCRAFT ON GROUND TO 3 DELTA P. NO MESSAGES. PRESSURIZED NORMAL.
LOSS OF CABIN PRESSURE CROSSING FL 280. FOUND THE OUTFLOW VALVE HAD FAILED.
(EMERGENCY POWER ASSIST) DOOR EPAS SQUIB 1L & DOOR EPAS SENSORS 1L STATUS MSGS. UNABLE TO ERASE MSG. REPLACED 1L POWER ASSIST PRESSURE BOTTLE ASSY PER REF 52-11-22-00A-720A-A. OP CHECKS GOOD.
ODOR NOTICED BY PASSENGER IN AREA OF SEAT 17 DEF, REF DMC-B787-A-05-51-99-99A-282A-A, NO EVIDENCE OF ANY ODOR OR DEFECT FOUND, SPECIFIC ACTION TAKEN TO EVALUATE DISCREPANCY ON LP 8639190. NO DEFECT OR EVIDENCE OF ODOR NOTED. REF DMC-B787-A-05-51-99-99A-282A-A, ACP CHECK OF CABIN AREA NEAR 17DEF, OPERATED ALL GALLEY EQUIP, AIR CONDITIONING SYS, IFE SYSTEM, CABIN LIGHTNING, BOTH CARGO PITS, LOWERED CEILING IN AREA OF 17 DEF, UNDERSEAT AREAS NEAR 17 DEF. NO EVIDENCE OF ANY ODOR, NO DEFECTS NOTED.
EICAS MSG SPOILERS UPON TURNING DOWNWIND, OVERHEAD SMO AT 4000 FT GOING FROM FLAPS 5 - 15. ACCOMPLISHED TROUBLESHOOTING OF SYS IAW CMC MSG`S 27-1287 1 & 27-12154. GND TEST OF SPOILERS, ELEC PASSED WITH NO FAULTS. OK IAW DMC-B787-A-27-60-F1-R4A-421A-A. FUP ISSUED TO CHANGE NR 4 EMCU.