# Service difficulty reports: Boeing 747-451

A list on [Boeing 747-451](https://openairdocs.org/model/boeing-747-451.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 50 · 2,469 reports

- [SDR DALA2017112008244](https://openairdocs.org/sdr/DALA2017112008244.md): Wire · broken · Nov 18, 2017 · N668US · Boeing 747451 · Light System Wiring
  > DURING A SERVICE CHECK, FOUND THE WIRE TO THE EMERGENCY LIGHT AT THE R3 DOOR BROKEN. REMOVED AND REPLACED THE LIGHT ASSY IAW AMM 33-51-12. OPS CHECKED GOOD, OK FOR SERVICE.
- [SDR DALA2017103007886](https://openairdocs.org/sdr/DALA2017103007886.md): Battery Pack · discharged · Oct 29, 2017 · N666US · Boeing 747451 · Emergency Lighting
  > UPPER DECK EMERGENCY LIGHTS FWD INOP. REPLACED BATTERY IN PACK M335 PER AMM 33-51-04.
- [SDR DALA2017102307776](https://openairdocs.org/sdr/DALA2017102307776.md): Door · lack of lube · Oct 21, 2017 · N674US · Boeing 747451 · Passenger/Crew Doors
  > UPPER DECK DOOR WOULD NOT ARM. CYCLED THE DOOR OPEN & CLOSED AND LUBRICATED THE MECHANISM. OPS CHECKED GOOD. OK FOR SERVICE.
- [SDR DALA2017102307741](https://openairdocs.org/sdr/DALA2017102307741.md): Switch · out of adjust · Oct 19, 2017 · N667US · Boeing 747451 · Door Warning System
  > AUTO/MAN DOOR DISPLAY MISSING FOR DOOR 1L ON EICQAS DRS DISPLAY. ADJUSTED DR1 AUTO/MANUAL SWITCH AS PER AMM 52-73-00-805-018, EXERCISED DOOR CLOSING/OPENING-INDICATION AUTO MANUAL ON EICAS- NORMAL. CLEARED MCO & REMOVED PLACARD. (3554476)
- [SDR DALA2017101807633](https://openairdocs.org/sdr/DALA2017101807633.md): Power Supply · inoperative · Oct 18, 2017 · N667US · Boeing 747451 · Emergency Lighting
  > EMERGENCY LIGHTS INOPERATIVE 4L, 51 ABC - 60ABC AISLE LIGHTS. REMOVED AND REPLACED THE POWER SUPPLY IAW AMM 33- 51-04, OPS NORMAL. OK FOR SERVICE.
- [SDR DALA2017100907381](https://openairdocs.org/sdr/DALA2017100907381.md): Battery Pack · inoperative · Oct 8, 2017 · N669US · Boeing 747451 · Doors
  > UPPER DECK DOOR BATTERY LIGHT INOPERATIVE. REMOVED AND REPLACED THE BATTERY PACK IAW AMM 52-14-13, CHECKED GOOD, OK FOR SERVICE.
- [SDR DALA2017100907380](https://openairdocs.org/sdr/DALA2017100907380.md): Battery Pack · inoperative · Oct 6, 2017 · N670US · Boeing 747451 · Doors
  > DURING A CHECK, FOUND THE RT UPPER DECK DOOR BATTERY OK LIGHT INOPERATIVE. REPLACED THE BATTERY PACK IAW AMM 52-23. BULB AND LENS CHECKED OK. BOTH SYSTEMS CHECKED ADEQUATELY CHARGED. OK FOR SERVICE.
- [SDR DALA2017100507314](https://openairdocs.org/sdr/DALA2017100507314.md): Lock · missing · Oct 3, 2017 · N662US · Boeing 747451 · Emergency Equipment
  > GIRT BAR HANGING FROM L5 DOOR. ON INSPECTION, FOUND THE FWD GIRT LOCK ASSY MISSING. INSTALLED A SERVICEABLE LOCK ASSY AND INSTALLED GIRT BAR IAW JIC 2560-9901-5L. ALL CHECKED GOOD. ACFT OK FOR SERVICE.
- [SDR DALA2017100307275](https://openairdocs.org/sdr/DALA2017100307275.md): Battery Pack · not seated · Oct 2, 2017 · N669US · Boeing 747451 · Emergency Lighting
  > UPPER DECK EMERGENCY EXIT SIGN INOP ABOVE LEFT DOOR. T/S PER FIM 33-51-02. FOUND BATTERY PACK NOT FULLY ENGAGED INTO HOUSING. RESEATED BATTERY PACK, OPS CKS GOOD.
- [SDR DALA2017100307273](https://openairdocs.org/sdr/DALA2017100307273.md): Battery Pack · discharged · Oct 2, 2017 · N667US · Boeing 747451 · Emergency Lighting
  > UPPER DECK DOOR EMERGENCY LIGHTS INOP. REMOVED AND REPLACED BATTERY PACKS M312 AND M7050 PER AMM 33-51-04. OPS CHECKS GOOD. OK FOR SVC.
- [SDR DALA2017100407274](https://openairdocs.org/sdr/DALA2017100407274.md): Motor · odor · Oct 1, 2017 · N667US · Boeing 747451 · Buffet/Galleys
  > UPPER DECK GALLEY ELEVATOR MOTOR PRODUCING AN ELECTRICAL SMELL. R&R LIFT CART ACTUATOR WITH ELECTRIC MOTORS PER AMM 25-38-02 OPS CK GOOD WIP 374716 PER AMM 25 38 REPLACED LOWER RESTRAINT ASSY LOADED CART OPERATED SEVERAL TIMES OK FOR SERVICE.
- [SDR DALA2017100307269](https://openairdocs.org/sdr/DALA2017100307269.md): Lens · missing · Oct 1, 2017 · N666US · Boeing 747451 · Emergency Lighting
  > 2R LAV RED LENS AND EMERGENCY LIGHT ASSY MISSING ON FLOOR. REPLACED RED LENS ASSEMBLY AS REQUIRED AT DOOR 2R LAV. OPS CHECK GOOD.
- [SDR DALA2017100207215](https://openairdocs.org/sdr/DALA2017100207215.md): Battery Pack · inoperative · Sep 30, 2017 · N668US · Boeing 747451 · Emergency Lighting
  > EMERGENCY LIGHT SIGNS WILL NOT ILLUMINATE DURING TEST. R & R THE BATTERY PACK M312 IAW AMM 33-51. OP CHECKED GOOD. OK FOR SERVICE.
- [SDR DALA2017100207214](https://openairdocs.org/sdr/DALA2017100207214.md): Light · missing · Sep 30, 2017 · N669US · Boeing 747451 · Emergency Lighting
  > L4 DOOR RED EMERGENCY LIGHT ASSY ON FLOOR MISSING. REPLACED THE EMERGENCY LIGHT IAW AMM 33-51, OPS CHECKED GOOD.
- [SDR DALA2017100207213](https://openairdocs.org/sdr/DALA2017100207213.md): Pin · unsecure · Sep 30, 2017 · N668US · Boeing 747451 · Light System Wiring
  > EMERGENCY LIGHTS INOPERATIVE NEAR THE L3 DOOR IN FRONT OF LAVATORIES. SECURED THE PIN ON THE LIGHT. OPS CHECKED GOOD.
- [SDR CALA2017093003350](https://openairdocs.org/sdr/CALA2017093003350.md): Light · unsecure · Sep 30, 2017 · N105UA · Boeing 747451 · Cabin Equipment/Furnishings
  > SEAT 23H - EMERGENCY EXIT PATH LIGHT HANGING OFF SIDE OF SEAT. SECURE EMERGENCY EXIT PATH LIGHT AT SEAT 23H.
- [SDR DALA2017092907158](https://openairdocs.org/sdr/DALA2017092907158.md): Girt Bar · unsecure · Sep 27, 2017 · N666US · Boeing 747451 · Emergency Equipment
  > UNABLE TO FULLY OPEN THE L2 DOOR. SECURED GIRT BAR IAW AMDS 2560-9901-26. OPS CHECKED GOOD AND PINS REMOVED. OK FOR SERVICE.
- [SDR DALA2017092707112](https://openairdocs.org/sdr/DALA2017092707112.md): Switch · dirty · Sep 25, 2017 · N667US · Boeing 747451 · Door Warning System
  > AFTER TAKEOFF. AN L1 DOOR ALERT MESSAGE ILLUMINATED FOR SEVERAL MINUTES, THEN WENT OUT, NO ABNORMAL SYMPTOMS NOTICED. L1 DOOR MECHANISM AND DOOR WARNING SWITCH INSPECTED, NO FAULTS FOUNDED, CLEANED AND REMOVED DEBRIS AROUND THE DOOR WARNING SWITCH AREA IAW
- [SDR DALA2017092207018](https://openairdocs.org/sdr/DALA2017092207018.md): Battery Pack · inoperative · Sep 21, 2017 · N662US · Boeing 747451 · Emergency Lighting
  > UPPER DECK ROWS 72 - 75 EMERGENCY LIGHTS INOPERATIVE. R & R THE BATTERY PACK IAW AMM 33-51. OPS CHECKED GOOD.
- [SDR DALA2017092006985](https://openairdocs.org/sdr/DALA2017092006985.md): Battery Pack · inoperative · Sep 20, 2017 · N669US · Boeing 747451 · Door Warning System
  > FOUND UPPER DECK LT DOOR BATTERY LIGHT INOPERATIVE. REPLACED THE BATTERY PACK. TESTED OK IAW AMM 52-23.
- [SDR DALA2017083006454](https://openairdocs.org/sdr/DALA2017083006454.md): Mechanism · dirty · Aug 29, 2017 · N674US · Boeing 747451 · Passenger/Crew Doors
  > UPPER DECK DOOR ON AIRCRAFT LEFT IS DIFFICULT TO ARM. DOOR ARMING HANDLE IS BINDING IN MANUAL POSITION. CLEANED AND LUBRICATE DOOR ARMING MECHANISM, OPS CHK'D NORMAL AND SECURED.
- [SDR DALA2017083006453](https://openairdocs.org/sdr/DALA2017083006453.md): Fairing · cracked · Aug 25, 2017 · N667US · Boeing 747451 · Engine Thrust Reverser
  > FOUND 6 CRACK ON NR 2 ENGINE RT T/R AROUND NR 6 BLOCKER FAIRING. REPLACED DAMAGED FAIRING PER SRM 51-40. REACTIVATED NR 2 ENG REVERSER AND OPS CHECK GOOD. PLACARDS REMOVED & OK FOR SERVICE.
- [SDR DALA2017082506392](https://openairdocs.org/sdr/DALA2017082506392.md): Panel · missing · Aug 22, 2017 · N670US · Boeing 747451 · Wing Main, Frame Structure
  > FOUND MISSING PANEL AND DAMAGED SUPPORT BEAM AT OTBD SIDE OF THE NR 11 KRUEGER FLAP PANEL. DAMAGE WAS OUT OF LIMITS. ACCOMPLISHED SUPPORT BEAM REPAIR IAW ER/A 560969-14, REV ORG. INSTALLED PANEL IAW AMM 57-21. PERFORMED LEADING EDGE FLAP OPS CHECKS IAW
- [SDR DALA2017082206334](https://openairdocs.org/sdr/DALA2017082206334.md): Seal · missing · Aug 21, 2017 · N666US · Boeing 747451 · Life Jacket
  > COVER FOR LIFE VEST MISSING THE PIN, CANNOT ATTACH. SECURED COVER AND INSTALLED THE SEAL. CHECKED OK FOR SERVICE.
- [SDR DALA2017081706282](https://openairdocs.org/sdr/DALA2017081706282.md): Battery · discharged · Aug 16, 2017 · N670US · Boeing 747451 · Emergency Lighting
  > PREFLIGHT CHECK FOUND U/D LEFT DOOR SLIDE LIGHT TEST NO ILLUMINATE. REMOVED AND REPLACED LIGHT BATTERY PER AMM 33-51. TEST OK AND CHKD NORMAL.
- [SDR DALA2017081406243](https://openairdocs.org/sdr/DALA2017081406243.md): Switch · dirty · Aug 9, 2017 · N668US · Boeing 747451 · Door Warning System
  > PRIOR TO DEPARTURE, THE R3 DOOR OPEN INDICATION ON THE EICAS DOOR PAGE. TROUBLESHOT IAW FIM 52-71, TASK 812-818. FOUND SWITCH DIRTY AND HAS EXCESSIVE SEALANT. REMOVED THE SEALANT AND DIRT AND LUBED THE SWITCH PLUNGER. CHECKED THE DOOR INDICTATION ON EICAS,
- [SDR DALA2017081006122](https://openairdocs.org/sdr/DALA2017081006122.md): Power Supply · inoperative · Aug 9, 2017 · N668US · Boeing 747451 · Emergency Lighting
  > RIGHT FWD TWO EXTERIOR EMERGENCY LIGHTS INOPERATIVE. REPLACED THE POWER SUPPLY, CHECKED OK IAW MM 33-51.
- [SDR DALA2017081006126](https://openairdocs.org/sdr/DALA2017081006126.md): Switch · failed · Aug 6, 2017 · N666US · Boeing 747451 · Door Warning System
  > EICAS MSG, DOOR R5 ON SHORT FINAL. INTERMITTENT. HAD PLF MSG 52109 DOOR ENTRY R5 SWITCH FAIL. PER FIM 52-71-00-812-820. REPLACED R5 ENTRY DOOR SWITCH S38 IAW AMM 52-71-01. OP CK GOOD.
- [SDR DALA2017080906094](https://openairdocs.org/sdr/DALA2017080906094.md): Spring · bent · Aug 5, 2017 · N667US · Boeing 747451 · Emergency Equipment
  > L4 DOOR GIRT BAR AFT SPRING BENT. REMOVED & REPLACED THE GIRT BAR ASSY IAW AMM 2560-9901.
- [SDR DALA2017080906093](https://openairdocs.org/sdr/DALA2017080906093.md): Bracket · broken · Aug 5, 2017 · N667US · Boeing 747451 · Emergency Equipment
  > L4 DOOR AFT CRANK CAM ASSY BRACKET FOR GIRT BAR BROKEN. INSTALLED A NEW BRAKET IAW AMM 52-11.
- [SDR DALA2017081006127](https://openairdocs.org/sdr/DALA2017081006127.md): Proximity Switch · damaged · Aug 3, 2017 · N666US · Boeing 747451 · Door Warning System
  > DOOR 5R ILLUMINATED AFTER TO FOR 15 SECONDS AGAIN ON LANDING FOR A BRIEF MOMENT ACARS TIMES WERE LOST EACH TIME. FOUND SWITCH DAMAGED S1975. REPLACED PROX SWITCH PER WDM 52-73-13. OPS CKS GOOD.
- [SDR CALA2017072802404](https://openairdocs.org/sdr/CALA2017072802404.md): Connector · loose · Jul 28, 2017 · N105UA · Boeing 747451 · Light System Wiring
  > EMERGENCY LIGHT AT SEAT 34 LT IS INOP. CONNECTOR SECURED AT UNDER SEAT 34C AND EMERGENCY LIGHT TEST NORMAL PER AMM TASK33-51-12-712-009-002. OPS CHECKED LIGHTS. OPS CHECK GOOD.
- [SDR CALA2017072802403](https://openairdocs.org/sdr/CALA2017072802403.md): Light · broken · Jul 28, 2017 · N105UA · Boeing 747451 · Emergency Lighting
  > EMERGENCY AISLE LIGHT AT SEAT 59 LR IS BROKEN AND MISSING HALF OF THE LIGHT. SEAT EMERGENCY PATH LIGHT ASSY REPLACED AND TEST NORMAL PER AMM 33-51-12-332-001-002 AT SEAT 59L. OPS CHECKED LIGHTS. OPS CHECK GOOD.
- [SDR CALA2017072802402](https://openairdocs.org/sdr/CALA2017072802402.md): Light · inoperative · Jul 28, 2017 · N105UA · Boeing 747451 · Emergency Lighting
  > EMERGENCY AISLE LIGHT AT SEAT 53 RT IS INOP. REPLACED EMERGENCY LIGHT ASSY AT SEAT 53RH IAW SUBTASK 33-51-12-4 22-005-002 AND CKS OK. OPS CHECKED LIGHTS. CHECK GOOD.
- [SDR CALA2017072802401](https://openairdocs.org/sdr/CALA2017072802401.md): Light · inoperative · Jul 28, 2017 · N105UA · Boeing 747451 · Emergency Lighting
  > EMERGENCY AISLE LIGHT AT SEAT 40 RT IS INOP. REPLACED EMERGENCY LIGHT ASSY AT SEAT 40RH IAW SUBTASK 33-51-12-4 22-005-002 AND CKS OK. OPS CHECKED LIGHTS. OPS CHECK GOOD.
- [SDR DALA2017072105609](https://openairdocs.org/sdr/DALA2017072105609.md): Tire · failed · Jul 19, 2017 · N670US · Boeing 747451 · Tire
  > DURING TAKE-OFF, THE NR 11 TIRE BLEW, NO AIRFRAME VIBRATIONS OR ABNORMAL AIRCRAFT INDICATIONS. FLT CONTINUED TO DESTINATION AND WILL DECLARED AN EMERGENCY ON ARRIVAL. INSPECTED RT MLG BODY GEAR.
- [SDR DALA2017071905542](https://openairdocs.org/sdr/DALA2017071905542.md): Power Supply · inoperative · Jul 18, 2017 · N666US · Boeing 747451 · Emergency Lighting
  > EXTERNAL EMERGENCY LIGHT AT LT BODY INOP. REPLACED POWER SUPPLY M7919 IAW AMM 33-51 & OK.
- [SDR DALA2017071805539](https://openairdocs.org/sdr/DALA2017071805539.md): Power Supply · inoperative · Jul 17, 2017 · N667US · Boeing 747451 · Emergency Lighting
  > RT EXTERIOR EMERGENCY LIGHT WILL NOT TEST. REPLACED THE EMER LIGHT POWER SUPPLY & CHECKED OK.
- [SDR DALA2017071805547](https://openairdocs.org/sdr/DALA2017071805547.md): Door · cracked · Jul 17, 2017 · N667US · Boeing 747451 · Engine Cowling System
  > NR 1 ENG NOSE COWL 6 OCLOCK POS PRESSURE RELIEF DOOR CRACKED. REPLACED THE DOOR ASSY IAW AMM 71-11.
- [SDR DALA2017071805541](https://openairdocs.org/sdr/DALA2017071805541.md): Light · disconnected · Jul 15, 2017 · N668US · Boeing 747451 · Light System Wiring
  > GALLEY LEFT FLOOR EMERGENCY LIGHTS INOPERATIVE. RECONNECTED LIGHT ASSY & SECURED TESTED IAW MM 33-51. OPS CHECKED OK.
- [SDR DALA2017071805540](https://openairdocs.org/sdr/DALA2017071805540.md): Lamp · inoperative · Jul 15, 2017 · N669US · Boeing 747451 · Door Warning System
  > PDC FOUND UPPER DECK LT DOOR BATTERY OK. LIGHT INOPERATIVE. REPLACED THE LAMP. REMOVED AND REPLACED THE BATTERY IAW AMM 52-71. OPS CHECKED NORMAL.
- [SDR DALA2017071205401](https://openairdocs.org/sdr/DALA2017071205401.md): Battery Pack · inoperative · Jul 11, 2017 · N667US · Boeing 747451 · Emergency Lighting
  > DURING INSPECTION, FOUND EMERGENCY LIGHTS AT ROW'S 77, 78, AND 79 ARE INOPERATIVE. MAINTENANCE REPLACED THE POWER SUPPLY BATTERY IAW WDM33-51-14, OP CHECKED NORMAL.
- [SDR DALA2017071105350](https://openairdocs.org/sdr/DALA2017071105350.md): Escape Hatch · unsecure · Jul 7, 2017 · N666US · Boeing 747451 · Emergency Exits
  > SHORTLY AFTER TAKE-OFF, THE COCKPIT ESCAPE HATCH OPENED AND WILL NOT STAY SHUT CAUSING PRESSURIZATION ISSUES AS WELL. DUMPED FUEL, DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE. MAINTENANCE CHECKED THE LATCH IAW AMM 52-21. LATCH OPERATES SMOOTH, CLOSED LATC
- [SDR DALA2017070305164](https://openairdocs.org/sdr/DALA2017070305164.md): Battery Pack · inoperative · Jul 2, 2017 · N669US · Boeing 747451 · Emergency Lighting
  > DURING INSPECTION, FOUND EMERGENCY LIGHT OUT AT POSITION 77-79. MAINTENANCE REPLACED THE BATTERY, FUNCTIONAL CHECKED NORMAL IAW AMM 51.
- [SDR DALA2017062905056](https://openairdocs.org/sdr/DALA2017062905056.md): Battery Pack · inoperative · Jun 26, 2017 · N670US · Boeing 747451 · Emergency Lighting
  > EMERGENCY LIGHT AT UPPER DECK SEAT 73A-75A, AND RIGHT UPPER DECK DOOR EXIT SIGN INOPERATIVE. REPLACED THE BATTERIES FOR M335 AND M312. OPS CHECKED OK IAW AMM 33-51.
- [SDR DALA2017061204677](https://openairdocs.org/sdr/DALA2017061204677.md): Engine · failed · Jun 9, 2017 · N668US · Boeing 747451 · Engine (Turbine/Turboprop)
  > AIR TURNBACK DURING FLIGHT, THE NUMBER 1 ENGINE STALLED WITH EGT RISE, ENGINE WAS SHUTDOWN. AIRCRAFT RETURNED SAFELY TO DEPARTURE. MAINTENANCE FOUND METAL IN THE TAIL PIPE. MAINTENANCE REPLACED NR 1 ENGINE IAW AMM 71-11. ENGINE RUN AND LEAK CHECKED OK, AIRCR
- [SDR DALA2017053104393](https://openairdocs.org/sdr/DALA2017053104393.md): Light · inoperative · May 30, 2017 · N674US · Boeing 747451 · Emergency Lighting
  > BOTH EXTERNAL EMERGENCY LIGHTS OUT ABOVE ADF ANTENNA PLACARD RT SIDE. RELAMPED CKS GOOD REF AMM 33-51.
- [SDR DALA2017053104392](https://openairdocs.org/sdr/DALA2017053104392.md): Light · inoperative · May 30, 2017 · N674US · Boeing 747451 · Emergency Lighting
  > EXTERNAL EMERGENCY LIGHTS OUT BOTH AT LT SIDE AT TE FLAP. RELAMPED CKS GOOD REF AMM 33-51.
- [SDR DALA2017053004340](https://openairdocs.org/sdr/DALA2017053004340.md): Light · broken · May 27, 2017 · N674US · Boeing 747451 · Emergency Lighting
  > EMERGENCY LIGHT AT 28K BROKEN. SECURED THE LIGHT ASSY.
- [SDR DALA2017052604243](https://openairdocs.org/sdr/DALA2017052604243.md): Actuator · malfunctioned · May 25, 2017 · N669US · Boeing 747451 · Leading Edge Slat Actuator
  > NR 5 L/E SLAT WAS FOUND DAMAGED DURING EXTENSION. REMOVED VARIABLE CAMBER FLAP IAW AMM 27-81-01-004-001. REMOVED DAMAGED ROTARY ACTUATORS IAW AMM 27-81-07-004-001. REMOVED THE NR 1 PDU IAW AMM 27-81-03. INSTALLED THE NR 1 PDU IAW AMM 27-81-03. LEAK AND OP

Next page: https://openairdocs.org/model/boeing-747-451/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 = '747451'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/boeing-747-451/reports

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