# N627US: 1979 Boeing 747-251B, registration cancelled 2008-07-16 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: July 16, 2008 - Status when cancelled: Valid registration - Airframe: [Boeing 747-251B](https://openairdocs.org/model/boeing-747-251b) (registry code 1384892) - Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) (OpenAirDocs) - Serial number: 21709 - Year built: 1979 - Type of aircraft: Fixed wing multi engine - Airworthiness: Standard, transport - Airworthiness date: January 2, 1980 - Certificate issued: November 29, 2005 - Last registry action: November 29, 2005 - Mode S code: A83211 - 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/N627US - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=627US - Page: https://openairdocs.org/deregistered/N627US-2008-07-16 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 747-251B: https://openairdocs.org/model/boeing-747-251b.md ## Service difficulty reports (27) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR 0501306627](https://openairdocs.org/sdr/0501306627), Aug 18, 2005: LANDING GEAR. COLLAPSED. AIRCRAFT LANDED WITH NOSE GEAR UP. FAILURE OF THE NLG DOOR ACTUATOR CAUSED THE NOSE GEAR NOT TO DEPLOY. PASSENGERS/CREW DEPLANED VIA SLIDES. ORIGINALLY IT WAS R - [SDR 0402246627](https://openairdocs.org/sdr/0402246627), Dec 31, 2004: BALLAST. ODOR. WHILE IN FLIGHT, GALLEY G3B HAD BURNING SMELL FOLLOWED BY SMOKE AND THEN LIGHT WENT OUT. POWER WAS TURNED OFF. REPLACED THE FLUORESCENT LIGHT SOCKET AND BALLAST - [SDR 0301526627](https://openairdocs.org/sdr/0301526627), Aug 6, 2003: DISPLAY. FAILED. LEFT 'B' ZONE VIDEO SCREEN WAS TURNED OFF DURING FLIGHT DUE TO A BURNING ODOR COMING FROM IT. FLIGHT CONTINUED TO KIX AND LANDED WITHOUT INCIDENT. REPLACED 21 I - [SDR 0301416627](https://openairdocs.org/sdr/0301416627), Jul 31, 2003: BATTERY PACK. DISCHARGED. DURING LINE CHECK, FOUND A-ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK GOOD. - [SDR 0301426627](https://openairdocs.org/sdr/0301426627), Jul 31, 2003: BATTERY PACK. DISCHARGED. DURING LINE CHECK, FOUND A-ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK GOOD. - [SDR 0300056627](https://openairdocs.org/sdr/0300056627), Jan 13, 2003: POWER SUPPLY. DISCHARGED. DURING LINE CHECK FOUND C ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY. OPERATIONAL CHECK GOOD. - [SDR 0203856627](https://openairdocs.org/sdr/0203856627), Oct 19, 2002: FRAME. CRACKED. During "H" check found cracks in frame at BS 2231 STR 26L. Repaired per EA 66-193010. - [SDR 0203586627](https://openairdocs.org/sdr/0203586627), Oct 15, 2002: WEB. CRACKED. During "H" check found crack in frame web at BS 360 RBL 4. Repaired per EA 66-191664. - [SDR 0200846627](https://openairdocs.org/sdr/0200846627), Mar 2, 2002: ODOR. DETECTED. DURING CRUISE, A SMOKE SMELL EMITTED IN THE FLIGHT DECK FOR A BRIEF MOMENT. ALL SYSTEMS CHECKED NORMAL AND THE AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITH - [SDR 0004616627](https://openairdocs.org/sdr/0004616627), Dec 22, 2000: ENROUTE TO MSP, 'D/E' ZONE PROJECTOR BECAM INOPERATIVE AND MADED A LOUD BUZZING NOISE FOLLOWED BY STRONG ELECTRICAL OR PLASTIC BURNING SMELL. AIRCRAFT CONTINUED - [SDR 9903466627](https://openairdocs.org/sdr/9903466627), Aug 26, 1999: RETRACT MECH. MALFUNCTIONED. DURING CLIMB, THE LEADING EDGE FLAP AMBER LIGHTS ILLUMINATED ACCOMPANIED WITH AIRFRAME VIBRATION. AMBER LGHTS FOR THE NR 1 AND NR 2 LEFT WING LEADING EDGE FLAPS - [SDR 9811186627](https://openairdocs.org/sdr/9811186627), Sep 27, 1998: POWER SUPPLY. INOP. DURING LINE CHECK, FOUND ZONE FLOOR PATH EMERGENCY LIGHT INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY, OPERATIONAL CHECK GOOD. - [SDR 9809446627](https://openairdocs.org/sdr/9809446627), Jun 3, 1998: INDICATOR. MALFUNCTIONED. DURING CLIMB, THE LEFT OUTBOARD TRAILING EDGE FLAPS DID NOT RETRACT BEYOND ONE DEGREE. AIRCRAFT RETURNED TO LAX AND LANDED WITHOUT INCIDENT. MAINTENANCE COULD N - [SDR 9721436627](https://openairdocs.org/sdr/9721436627), Nov 1, 1997: WEB. CRACKED. DURING PERIODIC CHECK, FOUND A CRACK ON THE MID SPAR WEB OF THE NR 2 PYLON AT AFT INBOARD CORNER, FOUR INCHES FORWARD OF TORQUE BULKHEAD. REPAIRED PER EA 66-152 - [SDR 9716326627](https://openairdocs.org/sdr/9716326627), Aug 31, 1997: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK, FOUND 'E' ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY, OPERATIONAL CHECK GOOD. - [SDR 9714586627](https://openairdocs.org/sdr/9714586627), Jul 26, 1997: CONTROL ROD. OUF OF ADJUST. DURING TAKEOFF, THE TAKEOFF WARNING HORN SOUNDED. AIRCRAFT SHORTED TAKEOFF. MAINTENANCE ADJUSTED THE SPEEDBRAKE ACTUATOR CONTROL ROD. OPERAITONAL CHECK GOOD. - [SDR 9713186627](https://openairdocs.org/sdr/9713186627), Jul 7, 1997: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK, FOUND B-ZONE AND UPPER DECK FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY PACK, OPERATIONAL CHECK GOOD. - [SDR 9712686627](https://openairdocs.org/sdr/9712686627), Jun 27, 1997: BATTERY. DISCHARGED. DURING LINE CHECK, FOUND B-ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY, OPERATIONAL CHECK GOOD. - [SDR 9711826627](https://openairdocs.org/sdr/9711826627), Jun 17, 1997: HYD LINE. LEAKING. DURING CLIMB, THE NR 1 HYDRAULC SYSTEM INDICATED A LOSS OF QUANTITY AND PRESSURE. AIRCRAFT RETURNED TO GUM AND LANDED WITHOUT INCIDENT. REPLACED A NR 1 HYDRAULI - [SDR 9701736627](https://openairdocs.org/sdr/9701736627), Jan 26, 1997: COMBUST CHAMBER. FAILED. NR 1 ENGINE FAILED AFTER TAKEOFF POWER WAS APPLIED. AIRCRAFT TAXIED BACK TO THE GATE AND PASSENGERS DEPLANED THROUGH JETWAY WITHOUT FURTHER EVENT. MAINTENANCE F - [SDR 9627326627](https://openairdocs.org/sdr/9627326627), Dec 30, 1996: TR UNIT. MALFUNCTIONED. DURING LANDING, ENGINE NR 1 REVERSER WOULD NOT STOW. DURING SECOND STOW ATTEMPT ENGINE NR 1 EXPERIENCED A COMPRESSOR STALL AND AUTO SHUTDOWN. MAINTENANCE INSPEC - [SDR 9626406627](https://openairdocs.org/sdr/9626406627), Oct 1, 1996: DOWNLOCK ACT. FAILED. DURING APPROACH, THE LEFT WING LANDING GEAR WOULD NOT EXTEND. AIRCRAFT EXECUTED A GO-AROUND AND ALTERNATELY EXTENDING THE LANDING GEAR. AIRCRAFT LANDED WITHOUT - [SDR 9614326627](https://openairdocs.org/sdr/9614326627), Jul 1, 1996: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK, FOUND C-ZONE EMERGENCY FLOOR TRACK LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY PACK, OPERATIONAL CHECK GOOD. - [SDR 9613646627](https://openairdocs.org/sdr/9613646627), Jun 20, 1996: BATTERY PACK. DISCHARGED. DURING LINE CHECK, FOUND ZONE-A EMERGENCY FLOOR TRACK LIGHTING INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK GOOD. - [SDR 9610996627](https://openairdocs.org/sdr/9610996627), May 9, 1996: SILL. CORRODED. DURING P-CHECK, FOUND CORROSION ON THE 5L DOOR LOWER SILL BS 2280. REPAIRED SILL (P/N 65B04423-1) PER EA 66-101923. - [SDR 9602086627](https://openairdocs.org/sdr/9602086627), Jan 26, 1996: DRAIN. CLOGGED. DURING CLIMB, WATER OVERFLOWED FROM THE FIRST CLASS LAVATORY AND NR 2 GALLEY. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. CLEANED AND PURGED CLOGGED D - [SDR 9514926627](https://openairdocs.org/sdr/9514926627), Sep 29, 1995: BLEED VALVE. MALFUNCTIONED. DURING CLIMB, THE NR 3 ENGINE NACELLE TEMPERATURE PEAKED AND THE ENGINE FIRE WARNING ACTIVATED. THE ENGINE WAS SHUTDOWN, THE FIRE BOTTLES WERE DISCHARGED, AND T ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB DCA05MA095](https://openairdocs.org/ntsb/DCA05MA095), Aug 19, 2005: Boeing 747-200 (N627US), Agana, substantial damage. Probable cause: the flight crews' failure to verify that the number of landing gear annunciations on the second officer’s panel was consistent with the number specified in the abnormal/emergency procedures… ## FAA accident and incident reports (4) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20050819020349A](https://openairdocs.org/incident/20050819020349A), Aug 19, 2005: Boeing 747251B (N627US), Agana, Guam, Substantial damage. (-23) About 2 miles out on a visual approach to pgum, pilot reported a problem, initiated a go-around and requested to circle off shore. Thereafter, he… - [Incident 19970126017519I](https://openairdocs.org/incident/19970126017519I), Jan 26, 1997: Boeing 747251B (N627US), Tokyo, JA, Substantial damage. Narrative: on January 26, 1997 northwest flight 20, a Boeing 747-251B, registration #N627US, experienced a number one engine failure 20 to 30 seconds into the… - [Incident 19810128010079I](https://openairdocs.org/incident/19810128010079I), Jan 28, 1981: Boeing 747251B (N627US), Anchorage, MN. Unscheduled landing due to oil leak from fuel oil cooler. - [Incident 19800412037999I](https://openairdocs.org/incident/19800412037999I), Apr 12, 1980: Boeing 747/ (N627US), Chicago, IL. Aborted takeoff due to takeoff warning horn. ## Other aircraft with N627US - [Cancelled 2019-06-29](https://openairdocs.org/deregistered/N627US-2019-06-29): 3D Robotics SOLO, S/N S111A5605087. Registration expired, pending cancellation. Owner: [Ed Beck Photography LLC](https://openairdocs.org/faa-owner/ED%20BECK%20PHOTOGRAPHY%20LLC), [Puyallup, WA](https://openairdocs.org/faa-place/WA/Puyallup) --- 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.