# N611US: Boeing 747-251B, registration cancelled 2001-03-29 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: March 29, 2001 - Status when cancelled: Triennial form not returned - Airframe: [Boeing 747-251B](https://openairdocs.org/model/boeing-747-251b) (registry code 1384892) - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) (OpenAirDocs) - Serial number: 20356 - Type of aircraft: Fixed wing multi engine - Certificate issued: April 16, 1971 - Last registry action: January 16, 2001 - Mode S code: A7F448 - Owner when cancelled: [Northwest Airlines Inc](https://openairdocs.org/faa-owner/NORTHWEST%20AIRLINES%20INC) - Location: [St Paul, MN](https://openairdocs.org/faa-place/MN/St%20Paul) - Owner type: Corporation - Owner's area on the map: 44.8873° N, 93.1924° W: Placed by OpenAirDocs at the center of ZIP code 55111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N611US - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=611US - Page: https://openairdocs.org/deregistered/N611US-2001-03-29 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 (23) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR 9902056311](https://openairdocs.org/sdr/9902056311), Jun 11, 1999: HYD LINE. LEAKING. DURING CLIMB, THE NR 3 HYDRAULIC SYSTEM LOST FLUID. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. RETORQUED HYDRAUALIC SUPPLY LINE IN THE NR 3 PYLON, OP - [SDR 9806816611](https://openairdocs.org/sdr/9806816611), Apr 19, 1998: ACTUATOR. MALFUNCTIONED. DURING CLIMB, THE NR 3 LEADING EDGE FLAP WOULD NOT RETRACT. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. REPLACED THE NR 3 LEADING EDGE FLAP ACTUATOR, - [SDR 9803166611](https://openairdocs.org/sdr/9803166611), Feb 18, 1998: FUEL CONTROL. FAILED. ON TAKEOFF ROLL, THE NR 4 ENGINE WOULD NOT PRODUCE TAKEOFF EPR WITH THE THRUST LEVER AT THE MECHANICAL STOP. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED T - [SDR 9717116611](https://openairdocs.org/sdr/9717116611), Sep 7, 1997: GEAR LIGHT. ILLUMINATED. DURING CLIMB, THE RED LANDING GEAR LIGHT ILLUMINATED. RECYCLED THE LANDING GEAR AND THE LIGHT EXTINGUISHED. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT - [SDR 9715166611](https://openairdocs.org/sdr/9715166611), Aug 5, 1997: WIRE HARNESS. CROSSED. AIRCRAFT EXPERIENCED A TIRE FAILURE DURING LANDING. AIRCRAFT COMPLETED LANDING WITHOUT FURTHER INCIDENT. REPLACED THE NR 3 AND NR 4 TIRE ASSEMBLIES AND REPOSITI - [SDR 9714806611](https://openairdocs.org/sdr/9714806611), Aug 1, 1997: TIRE. FAILED. AIRCRAFT EXPERIENCED A TIRE FAILURE DURING LANDING. AIRCRAFT COMPLETED LANDING WITHOUT INCIDENT. REPLACED THE NR 3 AND NR 4 TIRE ASSEMBLIES, ALL OPERATIONAL CHE - [SDR 9714546611](https://openairdocs.org/sdr/9714546611), Jul 25, 1997: GEARBOX. LEAKING. WHILE IN CRUISE, THE NR 4 ENGINE OIL QUANTITY DROPPED TO ZERO. OIL PRESSURE FELL TO THE YELLOW BAND AND THE ENGINE POWER WAS REDUCED TO IDLE FOR TWO MINUTES. TH - [SDR 9710236611](https://openairdocs.org/sdr/9710236611), May 25, 1997: TIRE. FAILED. DURING LANDING, THE NR 3 TIRE FAILED. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. REPLACED THE NR 3 AND NR 4 TIRE ASSEMBLIES, NBR 3 ANTI-SKID VALVE, AND ANTI-SKID - [SDR 9709986611](https://openairdocs.org/sdr/9709986611), May 18, 1997: BULKHEAD. CRACKED. DURING TRANSITION CHECK, FOUND CRACK IN NR 4 PYLON REAR ENGINE MOUNT BULKHEAD STRAP NACELLE STA 223. REPAIRED PER EA 66-150141. - [SDR 9627726611](https://openairdocs.org/sdr/9627726611), Oct 28, 1996: WEB. CORRODED. DURING CHECK, FOUND CORROSION ON THE MAIN DECK PRESSURE WEB INTERIOR SURFACE. REPAIRED PER EA 66-120205. - [SDR 9623776611](https://openairdocs.org/sdr/9623776611), Oct 26, 1996: FRAME. CRACKED. DURING ARMAR VISIT, FOUND CRACKS IN THE BS 400 FRAME INNER CHORD AND WEB AT STR 26R. REPAIRED CHORD AND WEB (P/N 65B07936-328) PER EA 66-110297. - [SDR 9627716611](https://openairdocs.org/sdr/9627716611), Oct 13, 1996: SKIN. CORRODED. DURING CHECK, FOUND CORROSION ON SKIN INTERNAL DOUBLER. REPLACED DOUBLER PER EA 66-120221. - [SDR 9617336611](https://openairdocs.org/sdr/9617336611), Aug 11, 1996: LOGIC CARD. DEFECTIVE. DURING CLIMB, THE RED NOSE LANDING GEAR LIGHT ILLUMINATED AFTER LANDING GEAR RETRACTION. RECYCLED LANDING GEAR AND LIGHT EXTINGUISHED. AIRCRAFT CONTINUED TO SEA - [SDR 9604746611](https://openairdocs.org/sdr/9604746611), Feb 23, 1996: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK, FOUND 'A' ZONE EMERGENCY FLOOR PATH LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERIES. - [SDR 9516426611](https://openairdocs.org/sdr/9516426611), Oct 6, 1995: LONGERON. CRACKED. DURING PERIODIC CHECK, FOUND TWO CRACKS, 1.1 AND 0.5 INCH IN STR 9R BS 1430, 1458 RESPECTIVELY. REPAIRED STRINGER (P/N 65B07229-8), PER EA 66-99128, -99157. - [SDR 9516416611](https://openairdocs.org/sdr/9516416611), Oct 6, 1995: LONGERON. CRACKED. DURING PERIODIC CHECK, FOUND TWO CRACKS, 0.75 AND 0.90 INCH STR 8R BS 1307, 1331 RESPECTIVELY. REPAIRED STRINGER (P/N 65B07229-34), PER EA 66-99128. - [SDR 9516406611](https://openairdocs.org/sdr/9516406611), Oct 6, 1995: LONGERON. CRACKED. DURING PERIODIC CHECK, FOUND A CRACK IN STR 8R, BS 1466. REPAIRED STRINGER (P/N 65B07229-34), PER EA 66-99123. - [SDR 9516396611](https://openairdocs.org/sdr/9516396611), Oct 5, 1995: FLOORBEAM. CRACKED. DURING PERIODIC CHECK, FOUND A ONE INCH CRACK IN THE UPPER DECK FLOORBEAM WEB, FS 460 RBL 88. REPAIRED WEB (P/N 65B10933-502), PER EA 66-99126. - [SDR 9515246611](https://openairdocs.org/sdr/9515246611), Oct 3, 1995: FITTINGS. CORRODED. DURING PERIODIC CHECK, FOUND CORROSION IN THE LBL 120 TO 125 OVERWING LONGERON AT THE FORWARD AND AFT UPLOCK SUPPORT CASTINGS, BS 1301 AND 1309. REPLACED FITTIN - [SDR 9508066611](https://openairdocs.org/sdr/9508066611), May 16, 1995: TRANSMISSION. FAILED. DURING CLIMBOUT, THE OUTBOARD TRAILING EDGE FLAPS WOULD NOT RETRACT PAST 10 DEGREES IN NORMAL OR ALTERNATE POSITION. CREW FOLLOWED COCKPIT OPERATING MANUAL, DUM - [SDR 9507906611](https://openairdocs.org/sdr/9507906611), May 12, 1995: DNLOCK ACTUATOR. MALFUNCTIONED. DURING APPROACH FOR LANDING AND AFTER LOWERING THE LANDING GEAR, EXPERIENCED RAPID LOSS OF HYDRAULIC FLUID ON NO.1 SYSTEM. HYDRAULIC PRESSURE DECREASED TO ZERO - [SDR 9506596611](https://openairdocs.org/sdr/9506596611), Mar 6, 1995: OIL FILTER. DIRTY. DURING CRUISE, NR 2 ENGINE OIL FILTER CLOG LIGHT ILLUMINATED. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT DIVERTED TO ANCWHERE AN UNEVENTFUL THREE ENGINE LANDING W - [SDR 9503596611](https://openairdocs.org/sdr/9503596611), Mar 6, 1995: OIL FILTER. CLOGGED. DURING CRUISE NR 2 ENGINE OIL FILTER CLOG LIGHT ILLUMINATED. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT DIVERTED TO ANC WHERE AN UNEVENTFUL THREE ENGINE LANDING W ## Other aircraft with N611US - [Cancelled 2006-09-08](https://openairdocs.org/deregistered/N611US-2006-09-08): Diamond Aircraft Ind DA 40, S/N 40.651, built 2006. Exported to Canada. Owner: [Usaero LLC](https://openairdocs.org/faa-owner/USAERO%20LLC), [Greenwood Village, CO](https://openairdocs.org/faa-place/CO/Greenwood%20Village) --- 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.