# N633US: 1980 Boeing 747-227, registration cancelled 2008-10-10 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: October 10, 2008 - Status when cancelled: Valid registration - Airframe: [Boeing 747-227](https://openairdocs.org/model/boeing-747-227) (registry code 1384887) - Serial number: 21991 - Year built: 1980 - Type of aircraft: Fixed wing multi engine - Airworthiness: Standard, transport - Airworthiness date: December 17, 1980 - Certificate issued: December 5, 2005 - Last registry action: December 5, 2005 - Mode S code: A84AB4 - Owner when cancelled: [Northwest Airlines Inc](https://openairdocs.org/faa-owner/NORTHWEST%20AIRLINES%20INC) - Location: [Minneapolis, MN](https://openairdocs.org/faa-place/MN/Minneapolis) - Owner type: Corporation - Owner's area on the map: 44.8723° N, 93.2328° W: Placed by OpenAirDocs at the center of ZIP code 55450, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N633US - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=633US - Page: https://openairdocs.org/deregistered/N633US-2008-10-10 From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe. ADs and bulletins for the Boeing 747-227: https://openairdocs.org/model/boeing-747-227.md ## Service difficulty reports (20) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR 0202936633](https://openairdocs.org/sdr/0202936633), Sep 9, 2002: CONTROLLER. MALFUNCTIONED. DURING FLIGHT, AN ELECTRICAL FUME EMITTED IN THE UPPER DECK AND FLIGHT DECK. PULLED UPPER DECK GALLEY CIRCUIT BREAKERS AND SMELL DISSIPATED. AIRCRAFT CONTINUED - [SDR 0101356633](https://openairdocs.org/sdr/0101356633), Apr 10, 2001: SMOKE. DETECTED. DURING CRUISE, NOTICED WHITE SMOKE AND ELECTRICAL SMELL COMING FROM THE NR 2 COFFEEMAKER IN NR 1 GALLEY. SMOKE AND SMELL DIMINISHED AFTER PULLING THE GALLEY CIR - [SDR 0100976633](https://openairdocs.org/sdr/0100976633), Mar 20, 2001: FIRE WARNING. FALSE INDICATION. DURING TAKEOFF, THE NR 3 ENGINE FIRE DETECTION LIGHT FLICKERED ON AND OFF. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE WITHOUT INCIDENT. INSPECTED AND TES - [SDR 0100326633](https://openairdocs.org/sdr/0100326633), Feb 2, 2001: UNKNOWN. ODOR. DURING CRUISE, THERE WAS AN ELECTRICAL WIRE BURNING SMELL IN AFT LAVATORIES. MAINTENANCE THOROUGHLY EXAMINED LAV EQUIPMENT. NO EVIDENCE OF ODOR WAS FOUND. OPERA - [SDR 0003546633](https://openairdocs.org/sdr/0003546633), Sep 25, 2000: PUMP. FAILED. DURING CLIMB AFTER LANDING GEAR RETRACTION, THE RED LANDING GEAR DOOR OPEN LIGHT REMAINED ILLUMINATED ACCOMPANIED BY VIBRATION. RECYCLED LANDING GEAR AND LIGHTS - [SDR 0003616633](https://openairdocs.org/sdr/0003616633), Sep 20, 2000: FLOORBEAM. CRACKED. FOUND CRACK ON FLOORBEAM LOWER CHORD AT BS 1900 RBL 108. REPAIRED PER EA 66-178826. - [SDR 0002226633](https://openairdocs.org/sdr/0002226633), Jun 23, 2000: WIRE. CHAFED. DURING FLIGHT, THE NR 1 ENGINE FIRE DETECTION FAULT LIGHT ILLUMINATED. FOLLOWED COCKPIT OPERATING MANUAL PROCEDURES AND LIGHT BECAME INTERMITTENT. AIRCRAFT CONT - [SDR 0000926633](https://openairdocs.org/sdr/0000926633), Feb 7, 2000: WEB. CRACKED. DURING M-CHECK, FOUND CRACK ON WEB AT STRINGER 25R BS 1265. ACCOMPLISHED INTERIM REPAIR PER EA 66-173177 REV A. ACCOMPLISH EA 66-173177 REV A SECTION II, REPAIR - [SDR 0000556633](https://openairdocs.org/sdr/0000556633), Feb 2, 2000: FRAME. CRACKED. DURING M-CHECK, FOUND CRACK IN FRAME WEB IN FASTENER HOLE ''A''. REPAIRED PER EA66-173177. - [SDR 9905276633](https://openairdocs.org/sdr/9905276633), Dec 8, 1999: PROJECTOR. FAILED. EN ROUTE TO KIX, MOVIE PROJECTOR BR PRODUCED SMOKE AND SPARKS. POWER WAS TURNED OFF AND AIRCRAFT CONTINUED TO KIX AND LANDED WITHOUT INCIDENT. REPLACED PROJECTO - [SDR 9720766633](https://openairdocs.org/sdr/9720766633), Nov 4, 1997: CHECK VALVES. FAILED. DURING CRUISE, FUEL STARTED VENTING FROM THE RIGHT WING TIP. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. CORRECTED SURGE TANK VENT LINE LEAK AT OUTBOA - [SDR 9719066633](https://openairdocs.org/sdr/9719066633), Oct 12, 1997: DRAIN FITTING. LOOSE. DURING CLIMB, FUEL STARTED VENTING FROM THE RIGHT WING TIP. CLOSED CROSSFEED VALVES AND THE VENTING STOPPED. AIRCRAFT DIVERTED TO SEA AND LANDED WITHOUT INCIDEN - [SDR 9701566633](https://openairdocs.org/sdr/9701566633), Jan 25, 1997: LINKAGE. LACK OF LUBE. DURING CLIMB, THE NOSE LANDING GEAR DOOR FAILED TO CLOSE. RECYCLED LANDING GEAR AND NOSE LANDING GEAR DOOR CLOSED. AIRCRAFT CONTINUED TO MSP AND LANDED WITHOUT - [SDR 9619726633](https://openairdocs.org/sdr/9619726633), Sep 10, 1996: WIRE. SHORTED. DURING TAKEOFF AND APPLICATION OF POWER, THE NR 1 EGT FLUCTUATES OFF SCALE. TAKEOFF WAS ABORTED AT 60 KTS AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE FOUND O - [SDR 9604976633](https://openairdocs.org/sdr/9604976633), Feb 17, 1996: PANEL. SEPARATED. EN ROUTE, THE LEFT WING TRAILING EDGE PANEL INBOARD OF NR 6 SPOILER BEGAN FLUTTERING WITH SUBSEQUENT INFLIGHT SEPARATION OF APPROXIMATELY A 30 INCH BY 50 INCH S - [SDR 9520926633](https://openairdocs.org/sdr/9520926633), Dec 8, 1995: SPAR WEB. CRACKED. DURING PCK, FOUND A CRACK IN THE NR 3 PYLON MID-SPAR WEB, STATION 301. REPAIRED WEB (P/N 65B90421) PER EA 66-104418. - [SDR 9520806633](https://openairdocs.org/sdr/9520806633), Nov 30, 1995: SEAT TRACK. CORRODED. DURING PCK, FOUND CORROSION IN THE CROWNLESS SEAT TRACK, LBL 11.33, BS 1265-1318. REPAIRED TRACK (P/N 65B 23464-7) PER EA 66-104417. - [SDR 9518006633](https://openairdocs.org/sdr/9518006633), Nov 14, 1995: BATTERY PACK. DISCHARGED. DURING LINE CHECK, FOUND THE LEFT OVERWING EMERGENCY LIGHT INOPERATIVE. REPLACED THE POWER SUPPLY AND BATTERY PACK, PERFORMED FUNCTIONAL CHECK AND TEST WAS NORM - [SDR 9517956633](https://openairdocs.org/sdr/9517956633), Nov 11, 1995: ENGINE. FAILED. AT TOP OF DESCENT WHEN THE THROTTLES WERE RETARDED, THE NR 3 ENGINE EXPERIENCED A FLAME-OUT. A RELIGHT ATTEMPT WAS UNSUCCESSFUL. THE AIRCRAFT CONTINUED TO AN UN - [SDR 9512116633](https://openairdocs.org/sdr/9512116633), Aug 6, 1995: INS. MALFUNCTIONED. AFTER TAKEOFF ORD, THE NR 2 INS WARNING LIGHT ILLUMINATED WITHOUT ACTION/MALFUNCTION CODES. ALSO, THE NR 1 INS HAD CODE 3 MODE 26 WITH INTERMITTENT CREW FLIGHT/ --- 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.