# Service difficulty reports: Boeing 747-481 A list on [Boeing 747-481](https://openairdocs.org/model/boeing-747-481.md). Newest first. General aviation reporting is voluntary. Page 1 of 8 · 397 reports - [SDR UIEA2026101000980](https://openairdocs.org/sdr/UIEA2026101000980.md): Lamp · inoperative · Oct 10, 2026 · N263SG · Boeing 747481 · Emergency Lighting > L4 EMERGENCY LIGHT INOP. RELAMPED L4 EMERGENCY LIGHT PER AMM 33-51-07. OPS TEST GOOD. - [SDR UIEA2026082600798](https://openairdocs.org/sdr/UIEA2026082600798.md): Reservoir · low pressure · Aug 26, 2026 · N322SG · Boeing 747481 · Escape Slide > RIGHT AFT UPPER DECK EVACUATION SLIDE RESERVOIR BOTTLE IS UNDERSERVICED. R & R RT AFT UPPER DECK EVACUATION SLIDE RESERVOIR IAW AMM 25-68-02. OPS CHKD OK. - [SDR UIEA2026080800689](https://openairdocs.org/sdr/UIEA2026080800689.md): Lamp · inoperative · Aug 10, 2026 · N263SG · Boeing 747481 · Emergency Lighting > L5 DOOR; SQUARE EMERGENCY LIGHT FAILS TO ILLUMINATE. REPLACED THE LAMPS FOR EMERGENCY LIGHT AT L5 DOOR IAW AMM 33-24-02. OPS CHKD GOOD. - [SDR UIEA2026080800690](https://openairdocs.org/sdr/UIEA2026080800690.md): Light · inoperative · Aug 10, 2026 · N263SG · Boeing 747481 · Emergency Lighting > L1 DOOR FWD EMERGENCY LIGHT DOES NOT ILLUMINATE. REMOVED AND REPLACED L1 EMERGENCY LIGHT ASSY IAW AMM 33-51-05-402-013. OPS CHECKED GOOD. - [SDR UIEA2026080500680](https://openairdocs.org/sdr/UIEA2026080500680.md): Engine · vibration · Aug 4, 2026 · N429MC · Boeing 747481 · Engine (Turbine/Turboprop) > AIRCRAFT VIBRATION INCREASED WITH POWER ADVANCED. ENG 1 LOCKED OUT AND 3 ENG FERRY TO ICN. AFTER FERRY FLIGHT, INSPECTED A/C CONDITION, ALL CHECK OK. PERF ENG RUN UP CHECK, NO STS MSG & NO FAULT FOUND IAW AMM 71-00-00. R & R NR 1 ENG PER W/O 162878 TASK CAR - [SDR UIEA2026052800367](https://openairdocs.org/sdr/UIEA2026052800367.md): Light · inoperative · May 28, 2026 · N263SG · Boeing 747481 · Emergency Lighting > MULTIPLE OVERWING EMERGENCY LIGHTS INOP. REMOVED & REPLACED LIGHT ASSY IAW AMM 33-51-03. OPS CHECK GOOD. - [SDR UIEA2025121501346](https://openairdocs.org/sdr/UIEA2025121501346.md): Actuator · failed · Dec 15, 2025 · N429MC · Boeing 747481 · Landing Gear Retraction/Extension System > GEAR TILT CAUTION AND STATUS MSG'S FOR LH BODY GEAR PRIMARY AND ALT PROX SWITCH TARGET FAIL. FOUND FAILED TILT ACTUATOR. REPLACING ACTUATOR, HYDRAULIC FUSE, AND LINE TO ACTUATOR. LEAK & OPS CHECKS GOOD. NO DEFECTS NOTED IAW AMM 32-13-24,32-31-00, AND 32-13-2 - [SDR UIEA2025120201332](https://openairdocs.org/sdr/UIEA2025120201332.md): Skin · damaged · Dec 2, 2025 · N429MC · Boeing 747481 · Elevator, Plate/Skin > LEFT INBD BOTTOM ELEVATOR, FOUND DAMAGE DURING WALK AROUND. ACCOMPLISHED TEMPORARY REPAIR OF LT INBD BOTTOM ELEVATOR IAW EA-1955A032, REV 0, PART 1. TRANSFER TO NON-MEL DMI 243280 & 243280. - [SDR UIEA2025071800972](https://openairdocs.org/sdr/UIEA2025071800972.md): Elec Connector · disconnected · Jul 18, 2025 · N429MC · Boeing 747481 · Electrical Power System Wiring > ELEC DRIVE 1 ADVISARY MESSAGE. DRIVE DISCONNECTED IAW QRH. FOUND #1 ENG CONNECTOR D85125 ON FIREWALL DISCONNECT. AW0317 INTERNALLY SHORTED ON 9 WIRES. REMOVED AND REPLACED CONNECTOR D85125 IAW SWPM 20-63-13. REMOVED AND REPLACED CONNECTOR D8417J IAW SWPM 20- - [SDR UIEA2025062500802](https://openairdocs.org/sdr/UIEA2025062500802.md): Skin · debonded · Jun 28, 2025 · N429MC · Boeing 747481 · Trailing Edge Flaps > SKIN, LOWER SURFACE OF L/H WING INBD AFT FLAP INBD SIDE. PERFORM PERMANENT REPAIR - UPGRADE THE EXISTING REPAIR ON LOWER PANEL OF LT WING INBD AFT FLAP IAW EGAT EI NR: T2025A57M-1065 REV 1. CONDITION CHECK IS SATISFACTORY. - [SDR UIEA2025062500803](https://openairdocs.org/sdr/UIEA2025062500803.md): Repair · debonded · Jun 28, 2025 · N429MC · Boeing 747481 · Wing, Plate/Skin > RIGHT WING INBD FORE FLAP UPPER INBD PANEL EXISTING REPAIR DOUBLER DISBOND. PERFORM PERMANENT REPAIR - UPGRADE THE EXISTING REPAIR ON TOP PANEL OF RH WING INBD FORE FLAP IAW EGAT EI NR. T2025A57M-1096 REV 1. CONDITION CHECK IS SATISFACTORY. - [SDR UIEA2025062500804](https://openairdocs.org/sdr/UIEA2025062500804.md): Skin · corroded · Jun 28, 2025 · N429MC · Boeing 747481 · Wing, Plate/Skin > CORROSION ON R/H WING UPPER SKIN UPPER SURFACE NEAR WBL 1193. BLEND OUT THE CORROSION AREA IAW SRM 51-10-02-0G-0 REV 62. ACCOMPLISHED REPAIR AREA IAW EI NR: T2025A57M-1057 REV 2. COMPLETED JOB AND CONDITION CHECK NORMAL. - [SDR UIEA2025062500805](https://openairdocs.org/sdr/UIEA2025062500805.md): Skin · corroded · Jun 28, 2025 · N429MC · Boeing 747481 · Wing, Plate/Skin > CORROSION ON LT WING UPPER SKIN UPPER SURFACE NEAR WBL 1217.133.. REPAIRED CORROSION AREA IAW EI NR: T2025A57M-1060 REV 2. COMPLETED JOB AND CONDITION CHECK NORMAL. - [SDR UIEA2025062500807](https://openairdocs.org/sdr/UIEA2025062500807.md): Skin · corroded · Jun 28, 2025 · N429MC · Boeing 747481 · Fuselage Main, Plate/Skin > FOUND THE SKIN INSIDE CORROSION AT STA 1700 - 1720, S-42L. REMOVE EXIST SKIN REPAIR DOUBLER IAW SRM 51-10-02-0G-0 REV 62. ACCOMPLISH EI NO: T2025A53M-1083 REV 1. JOB COMPLETED AND CONDITION CHECK NORMAL. - [SDR UIEA2025062500808](https://openairdocs.org/sdr/UIEA2025062500808.md): Skin · dented · Jun 28, 2025 · N429MC · Boeing 747481 · Fuselage Main, Plate/Skin > FOUND FUSELAGE LOWER LOBE SKIN DENT AT STA 1925, S-31R ~ S-32R. ACCOMPLISHED EI NR: T2025A53M-996 REV 1. JOB COMPLETED AND CONDITION CHECK NORMAL. - [SDR UIEA2025062500809](https://openairdocs.org/sdr/UIEA2025062500809.md): Skin · dented · Jun 28, 2025 · N429MC · Boeing 747481 · Fuselage Main, Plate/Skin > DENT - FOUND FUSELAGE LOWER LOBE SKIN DENT AT STA 1935, S-31R ~ S-32R. ACCOMPLISHED EI NO: T2025A53M-996 REV 1 AND EI ATTACHED TO W/O NO: 11010065(002). JOB COMPLETED AND CONDITION CHECK NORMAL. - [SDR UIEA2025062500810](https://openairdocs.org/sdr/UIEA2025062500810.md): Repair · out of date · Jun 28, 2025 · N429MC · Boeing 747481 · Fuselage Main, Plate/Skin > UPGRADE THREE TEMPORARY FUSELAGE SKIN DOUBLER REPAIRS BETWEEN STA 1780 AND STA 1840, S-46L AND S-49L. REMOVED TIME LIMITED FUSELAGE SKIN REPAIR, TOTAL 3 AREA IAW SRM 51-40-02-0G-0 REV 62. ACCOMPLISHED EI NR T2025A53M-1055 REV 2. 3. JOB COMPLETED AND CONDITI - [SDR UIEA2025062500811](https://openairdocs.org/sdr/UIEA2025062500811.md): Spar · corroded · Jun 28, 2025 · N429MC · Boeing 747481 · Wing Spar > CORROSION ON RH WING FRONT SPAR OUTBOARD LOWER CHORD AT FSSO 1509.45. REMOVED THE AFFECTED FASTENERS IAW SRM 51-40-02-0G-0 REV 62. BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02-0G-0 REV 62. PERFORMED NDT INSPECTION REFER TO JOB CARD NO: 044869 AND DATA SH - [SDR UIEA2025062500812](https://openairdocs.org/sdr/UIEA2025062500812.md): Elt · no test · Jun 28, 2025 · N429MC · Boeing 747481 · Emergency Locator Beacon > FOUND ELT SYSTEM OPERATIONAL TEST FAIL. REPLACED ELT TRANSMITTER IAW AMM 23-24-01-020-801 & AMM 23-24-01-420-801 REV 113. PERFORMED ELT TEST IAW AMM 23-24-01-720-801 & AMM 23-24-01-720-802, & AMM 23-24-01-720-803 REV 113. TEST RESULT WAS SATISFACTORY. - [SDR UIEA2025062500813](https://openairdocs.org/sdr/UIEA2025062500813.md): Battery · faulted · Jun 28, 2025 · N429MC · Boeing 747481 · Emergency Exits > FOUND CARTRIDGE RESISTANCE OUT OF LIMIT AT L/H, R/H UPPER DECK DOOR WHEN PERFORM BATTERY AND EMERGENCY OPENING OPERATATION. REPLACED L/H & R/H UPPER DECK DOOR EMERGENCY POWER RESERVOIR IAW AMM 52-23-13-004-001 & AMM 52-23-13-404-010 AND AMM 52-23-13-406-045 - [SDR UIEA2025061600777](https://openairdocs.org/sdr/UIEA2025061600777.md): Battery · no test · Jun 14, 2025 · N322SG · Boeing 747481 · Emergency Lighting > FOUND U/D EMERGENCY LIGHT POWER SUPPLY (M5933) FUNCTION FAIL.(

1. REPLACED EMERGENCY LIGHT POWER SUPPLY (M5933) IAW AMM 33-51-04-002-009-001 & AMM 33-51-04-402-012-001 REV 113. 2. REPLACED EMERGENCY POWER SUPPLY BATTERY (M5933) IAW AMM 33-51-04-902-001-001 R - [SDR UIEA2025061600778](https://openairdocs.org/sdr/UIEA2025061600778.md): Light · inoperative · Jun 14, 2025 · N322SG · Boeing 747481 · Emergency Lighting > FOUND ZONE E CREW REST EMERGENCY LIGHT ASSY (M6916) INOP.(

1. REPLACED ZONE E CREW REST EMERGENCY LIGHT ASSY (M6916) IAW AMM 33-51-07-002-009 & AMM 33-51-07-402-015 REV 113. 2. PERFORMED ZONE E CREW REST EMERGENCY LIGHT ASSY (M6916) INSTALLATION TEST I - [SDR UIEA2025061600779](https://openairdocs.org/sdr/UIEA2025061600779.md): Light · inoperative · Jun 14, 2025 · N322SG · Boeing 747481 · Emergency Lighting > FOUND DR JL EMERGENCY EXIT SIGN (M2995) LIGHT INOP.(

1. REPLACED DR JL EMERGENCY EXIT SIGN (M2995) LIGHT ASSY IAW AIPC 33-51-12-01A REV 89 & WDM 33-51-63 REV 70. 2. PERFORMED EMERGENCY LIGHT OPERATIONAL TEST IAW AMM 33-51-00-715-10J REV 113. THE RESULT WAS S - [SDR UIEA2025061600780](https://openairdocs.org/sdr/UIEA2025061600780.md): Battery · inoperative · Jun 14, 2025 · N322SG · Boeing 747481 · Emergency Lighting > FOUND U/D EMERGENCY LIGHT POWER SUPPLY BATTERY (M5932) FUNCTION FAIL.(

1. REPLACED U/D EMERGENCY LIGHT BATTERY (M5932) IAW AMM 33-51-04-902-001-001 REV 113. 2. REPLACED EMERGENCY POWER SUPPLY BATTERY (M5933) IAW AMM 33-51-04-902-001-001 REV 113. 3. PERFORMED - [SDR UIEA2025061600781](https://openairdocs.org/sdr/UIEA2025061600781.md): Battery · inoperative · Jun 14, 2025 · N322SG · Boeing 747481 · Emergency Lighting > FOUND ZONE D CREW REST EMERGENCY LIGHT POWER SUPPLY BATTERY (M2927) FUNCTION FAIL.(

1. REPLACED ZONE D CREW REST EMERGENCY LIGHT POWER SUPPLY BATTERY (M2927) IAW AMM 33-51-04-902-001-001 REV 113. 2. PERFORMED ZONE E CREW REST EMERGENCY LIGHT POWER SUPPLY BAT - [SDR UIEA2025061600782](https://openairdocs.org/sdr/UIEA2025061600782.md): Battery · failed · Jun 14, 2025 · N322SG · Boeing 747481 · Emergency Lighting > FOUND DR 3L EMERGENCY LIGHT POWER SUPPLY BATTERY (M2919) FUNCTION FAIL.(

1. REPLACED DR 3L EMERGENCY LIGHT POWER SUPPLY (M2919) IAW AMM 33-51-04-002-009-001 & AMM 33-51-04-402-012-001 REV 113. 2. PERFORMED EMERGENCY LIGHT POWER SUPPLY INSTALLATION TEST IAW A - [SDR UIEA2025061600783](https://openairdocs.org/sdr/UIEA2025061600783.md): Battery · expired · Jun 14, 2025 · N322SG · Boeing 747481 · Exterior Lighting > FOUND DFDR BEACON BATTERY NEXT DUE DATE WITHIN 90 DAYS.(

1. REPLACED DFDR UNDERWATER LOCATOR BEACON (ULB) IAW AMM 31-31-09-002-001 & AMM 31-31-09-402-015 REV 113. 2. PERFORMED ULB OPERATIONAL TEST IAW AMM 31-31-09-402-020 REV 113. THE TEST RESULT WAS SATISFA - [SDR UIEA2025060200716](https://openairdocs.org/sdr/UIEA2025060200716.md): Battery · no test · May 31, 2025 · N263SG · Boeing 747481 · Emergency Lighting > EMERGENCY LIGHTS INOP AT L1 DOOR AND R1 DOOR.(

REMOVED AND REPLACED EMERGENCY EXIT LIGHT BATTERY ASSY IAW AMM 33-51-04. OPS CHECK GOOD. REF AIPC 24-31-00-50D. (SN: 126523 PN: 2013-1A & SN: 105679 PN: 2013-1A)

) - [SDR UIEA2025050500579](https://openairdocs.org/sdr/UIEA2025050500579.md): Beam · corroded · May 5, 2025 · N263SG · Boeing 747481 · Wing Main, Frame Structure > CORROSION - BEAM, L/H WING OUTBD L/E CAVITY LOWER PNL SUPPORT BEAM INNER FACE, AT OLES 1380 AND OLES 1413.(

1. BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02-0G-0 REV: 123. 2. PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO: 0477877. 3. MEASURED REWORK AREA - [SDR UIEA2025050500580](https://openairdocs.org/sdr/UIEA2025050500580.md): Spar Web · corroded · May 5, 2025 · N263SG · Boeing 747481 · Fuselage Main, Structure > CORROSION DAMAGE ON CENTER WINF REAR SPAR WEB LH SIDE NEAR JETTISON PUMP AT LBBL 90, STA 1240.(

1. BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02-0G-0 REV 123. 2. PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO: 0447498 & DATA SHEET NO: 10851928-1; 10851928- - [SDR UIEA2025050500581](https://openairdocs.org/sdr/UIEA2025050500581.md): Light · no test · May 5, 2025 · N263SG · Boeing 747481 · Emergency Lighting > FOUND ZONE E CREW REST EMERGENCY LIGHT ASSY (M6916) FUNCTION FAIL.(

1. REFERENCE AIPC 33-29-10-40B REV 88 AND IAW AMM 33-51-00-715-001 REV 113. REPLACED ZONE E CREW REST EMERGENCY LIGHT ASSY (M6916) AND PERFORM EMERGENCY LIGHT OPERATIONAL TEST, THE RESULT WA - [SDR UIEA2025050500582](https://openairdocs.org/sdr/UIEA2025050500582.md): Light · inoperative · May 5, 2025 · N263SG · Boeing 747481 · Emergency Lighting > FOUND DR I-R SLIDE EMERGENCY LIGHT ASSY (X323) FUCTION FAIL.(

1. REFERENCE AIPC 33-51-06-0J REV 88 AND IAW 33-51-00-715-001 REV 113. REPLACED DR I-R SLIDE EMERGENCY LIGHT ASSY (X323) AND PERFORMED EMERGENCY LIGHT OPERATIONAL TEST, THE RESULT WAS SATISFACTORY - [SDR UIEA2025050500583](https://openairdocs.org/sdr/UIEA2025050500583.md): Charger · inoperative · May 5, 2025 · N263SG · Boeing 747481 · Emergency Lighting > FOUND U/D EMERGENCY LIGHT BATTERY CHARGER ASSY (M5051) FUNCTION.(

1. REPLACED U/D EMERGENCY LIGHT BATTERY CHARGER (M5051) IAW AMM 33-51-04-002-009-001 AND AMM 33-51-04-402-012-001 REV 113. 2. PERFOMED EMERGENCY LIGHT BATTERY CHARGER INSTALLATION TEST IAW AMM - [SDR UIEA2025050500584](https://openairdocs.org/sdr/UIEA2025050500584.md): Light · deteriorated · May 5, 2025 · N263SG · Boeing 747481 · Emergency Lighting > FOUND ESCAPE PATH LIGHTING DETERIORATION OR MISSING IN SEVERAL CABIN AREA.(

1. REPLACED ESCAPE PATH LIGHTING IN SEVERAL CABIN AREAS (PN: SG8500, SG501, SG8503, SG8519) IAW DRAWING SG-B747 REV E. 2. JOB COMPLETED AND CONDITION CHECK NORMAL.

) - [SDR UIEA2025050500585](https://openairdocs.org/sdr/UIEA2025050500585.md): Latch · worn · May 5, 2025 · N263SG · Boeing 747481 · Passenger/Crew Doors > WEAR OUT - L1 DOOR LATCH FITTING AT FWD UPPER.(

1. REPAIR - CHAFING DAMAGE ON FITTING OF L1 DOOR SURROUND STRUCTURE FWD FRAME AT STA 434 IAW EGAT EI T2025A53M-720 REV 2. JOB COMPLETED AND CONDITION CHECK NORMAL.

) - [SDR UIEA2025050500586](https://openairdocs.org/sdr/UIEA2025050500586.md): Wire · chafed · May 5, 2025 · N263SG · Boeing 747481 · Electrical Power System Wiring > FOUND #3 ENG POWER FEEDER CABLE CHAFING. (W280-133-1/0).(

1. REPLACED #3 POWER FEEDER CABLE (W280-133-1/0) IAW AMM 24-11-01-004-055-001, 24-11-01-404-024-001 REV 113, WDM 24-21-31 REV 69 AND SWPM 20-30-13 REV 88. 2. PERFORMED GENERATOR DRIVE SYSTEM OPERATION - [SDR UIEA2025041100452](https://openairdocs.org/sdr/UIEA2025041100452.md): Battery · inoperative · Apr 16, 2025 · N429MC · Boeing 747481 · Emergency Lighting > SEVERAL EMERGENCY LIGHTS INOPERATIVE AT EMERGENCY DOORS.(

REMOVED AND REPLACED EMERGENCY BATTERY PACK AT PWR SUPPLY M312 IAW AMM 33-51-04-902-001-001. OPS CHECK GOOD PER B747 AMM 33-51-04-712-006-007.

) - [SDR UIEA2025041100453](https://openairdocs.org/sdr/UIEA2025041100453.md): Battery Pack · inoperative · Apr 16, 2025 · N429MC · Boeing 747481 · Emergency Lighting > SEVERAL EMERGENCY LIGHTS INOPERATIVE AT EMERGENCY DOORS.(

REMOVED AND REPLACED EMERGENCY BATTERY PACK AT POWER SUPPLY M7030 IAW AMM 33-51-04-902-001-001. OPS CHECK GOOD PER B747AMM 33-51-04-712-006-001.

) - [SDR UIEA2025032600389](https://openairdocs.org/sdr/UIEA2025032600389.md): Flap · damaged · Mar 25, 2025 · N429MC · Boeing 747481 · Leading Edge Devices > MULTIPLE BIRD STRIKES ON APPROACH. ACCOMPLISHED BIRD STRIKE CONDITION INSPECTION IAW 05-51-14. REMOVED AND REPLACED #16 LE FLAP, #14 LE FLAP IAW AMM 27-81-81 & IPC 27-81-01-01 REV 88 & IPC 27-81-55-10 REV 88. OPS CHECK GOOD. INPECTION ON CORE OF ENGINE #2 & - [SDR UIEA2024121901175](https://openairdocs.org/sdr/UIEA2024121901175.md): Transmitter · faulted · Dec 20, 2024 · N429MC · Boeing 747481 · Aircraft Fuel Distribution System > EICAS FUEL IMBALANCE. FOLLOWED QRH 12.8 SUSPECT ENG 1 FUEL LEAK. SHUTDOWN ENGINE 1(

PERFORMED DVI AND WET MOTORING TO LEAK CHK PER AMM 71-00-00/201. NO LEAK NOTED. REMOVED & REPLACED #1 FUEL FLOWS TRANSMITTER PER AMM 73-31-01/401 & AIPC 78-31-01-05. AND LEAK - [SDR UIEA2024102901065](https://openairdocs.org/sdr/UIEA2024102901065.md): Acm · odor · Oct 29, 2024 · N429MC · Boeing 747481 · Cabin Cooling System > STARTED ENGINE #3 USING MANUAL START PROCEDURE, CLEARED TO PUSHBACK AND THEN SMELLED SMOKE FOLLOWED BY VISUAL SMOKE. FOLLOWED FIM 21-61 TASK 924, R/R #3 PACK ACM PER AMM 21-51-04/401 AND PERFORMED OPS CHECK PER AMM 21-00-00/201. R/R ENG 3 PRSOV PER AMM 36-11-0 - [SDR UIEA2024090400885](https://openairdocs.org/sdr/UIEA2024090400885.md): Tire · failed · Sep 2, 2024 · N429MC · Boeing 747481 · Tire > #5 TIRE LOST THREAD(

R/R #5 MWA PER AMM 32-45-01. VERIFIED TIRE PRESSURE. VERIFIED PN PER IPC 32-45-03-02. PERFORM PART DEPARTING A/C INSPECTION PER AMM 05-51-34, FOUND DAMAGE TO THE OLEO STRUT DOOR, DAMAGE FOUND TO BE WITHIN LIMITS PER SRM 52-80-01-1A-3. TR - [SDR UIEA2024061200515](https://openairdocs.org/sdr/UIEA2024061200515.md): Tube · damaged · Jun 11, 2024 · N429MC · Boeing 747481 · Hydraulic System, Main > EICAS HYD SYS 1 ON T/O ROTATION SYS 1 HYD FAILED. R & R ALL HYD DAMAGED TUBES ON LT BLG WHEEL WELL PER NRC 60, 61, 62, 66, 67, 68, 69, 70, 71, 103, 137, & 138 OF W/O 131823 FOR CORRECTIVE ACTION. OPS & LEAK CHECK NORMAL PER AMM 20-11-05. - [SDR UIEA2024060200472](https://openairdocs.org/sdr/UIEA2024060200472.md): Tire · burst · Jun 2, 2024 · N429MC · Boeing 747481 · Tire > #6 MAIN TIRE DAMAGED (BURST) AT DEPARTURE. ARRIVED IN LAX(

R/R #5 AND #6 TIRE ASSY AND COMPLETED CH 5 INSPECTIONS IAW AMM 32-45-01 & IPC 32-45-03-02. LEAK & OPS CHK GOOD. NO DEFECTS NOTED

) - [SDR UIEA2023093000859](https://openairdocs.org/sdr/UIEA2023093000859.md): Transmitter · unknown · Sep 29, 2023 · N322SG · Boeing 747481 · Hydraulic Quantity Sensor > EICAS MSG "HYD QTY LO" QRH 13.27 COMPLETED.(

TRANSFER TO MDDR #194292 PER MEL 29-33-01A CAT C, DUE DATE: 09OCT23. MX ACTION COMPLIED WITH. R/R #4 HYD QTY TRANSMITTER PER AMM 29-33-01. OPS AND LEAK CHECK GOOD. THIS CLOSES DMI 194292.

) - [SDR UIEA2023082900800](https://openairdocs.org/sdr/UIEA2023082900800.md): Unknown · unknown · Aug 28, 2023 · N322SG · Boeing 747481 · Fuselage Main, Structure > DURING GROUND OPS, LOADING TO FWD FUESLAGE WAS DAMAGED BY LOADER. APPROX 47 INCHES LONG, GOUGE 12 INCHES AFT OF FWD CARGO DOOR, BODY STATIONS 670-700, STRINGERS 30R-36R.(

PERFORMED HFEC, BOLT HOLE AND ULTRASOUND THICKNESS INSPECTION AT DAMAGE AREA FWD OF CAR - [SDR UIEA2023063000672](https://openairdocs.org/sdr/UIEA2023063000672.md): Battery · unknown · Jul 2, 2023 · N263SG · Boeing 747481 · Lighting System > EMERGENCY EXIT SIGN ROW 11 INOP, TOP DECK OF THE STAIRS EXIT SIGN INOP, MD LH SIDE OF ENTRY DOOR EXIT SIGN INOP, TOP DECK ROW 15 EXIT SIGN INOP, RH MID GALLEY AND CEILING EXIT SIGN INOP, RH SIDE CEILING AND SERVICE DOOR OVER WING EXIT SIGN INOP(

ALL LOCATION - [SDR UIEA2023042400382](https://openairdocs.org/sdr/UIEA2023042400382.md): Battery Pack · no test · May 13, 2023 · N429MC · Boeing 747481 · Emergency Lighting > EMERGENCY LT POWER SUPPLY M7027 L/H CAPACITY CHECK FAIL(

POWER PACK REPLACED AND OPERATION CHECKED NORMAL

) - [SDR UIEA2023042400383](https://openairdocs.org/sdr/UIEA2023042400383.md): Battery Pack · no test · May 13, 2023 · N429MC · Boeing 747481 · Emergency Lighting > EMERGENCY LT POWER SUPPLY M312 CAPACITY CHECK FAIL(

POWER PACK REPLACED AND OPERATION CHECKED NORMAL

) - [SDR UIEA2023042400384](https://openairdocs.org/sdr/UIEA2023042400384.md): Battery Pack · no test · May 13, 2023 · N429MC · Boeing 747481 · Emergency Lighting > EMERGENCY LT POWER SUPPLY M335 CAPACITY CHECK FAIL(

POWER PACK REPLACED AND OPERATION CHECKED NORMAL

) Next page: https://openairdocs.org/model/boeing-747-481/reports.md?page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE aircraft_model_key = '747481' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/model/boeing-747-481/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.