# N612NW: 1969 Mcdonnell Douglas DC-9-32, registration cancelled 2008-11-24 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: November 24, 2008 - Status when cancelled: Triennial form not returned - Airframe: [Mcdonnell Douglas DC-9-32](https://openairdocs.org/model/mcdonnell-douglas-dc-9-32) (registry code 302206C) - Engine: [Pratt & Whitney JT8D series](https://openairdocs.org/engine/pratt-whitney-jt8d-series) (registry code 52053) - Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE) (OpenAirDocs) - Serial number: 47436 - Year built: 1969 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-jet - Airworthiness: Standard, transport - Airworthiness date: September 5, 1995 - Certificate issued: October 4, 1995 - Last registry action: October 16, 2007 - Mode S code: A7F76D - 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/N612NW - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=612NW - Page: https://openairdocs.org/deregistered/N612NW-2008-11-24 From the FAA registry file of November 5, 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 Mcdonnell Douglas DC-9-32: https://openairdocs.org/model/mcdonnell-douglas-dc-9-32.md ## Service difficulty reports (32) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR 0301829612](https://openairdocs.org/sdr/0301829612), Sep 27, 2003: COOLING TURBINE. FAILED. IMMEDIATELY AFTER TAKEOFF, SMOKE WAS REPORTED IN THE CABIN AREA AND LAV SMOKE DETECTORS WERE IN ALARM. CREW COMPLIED WITH COM, DONNED OXYGEN MASKS, & RETURNED T - [SDR 0301819613](https://openairdocs.org/sdr/0301819613), Sep 3, 2003: DOUBLER. CRACKED. DURING L-CHECK FOUND CRACK IN EXISTING REPAIR DOUBLER ON AFT CARGO DOOR JAMB AT BS 897. REPAIRED PER EA 96-195991. - [SDR 0300809612](https://openairdocs.org/sdr/0300809612), Mar 13, 2003: SKIN. CRACKED. DURING L-CHECK, FOUND CRACKS ON FUSELAGE NOSE SKIN AT BS 69.5 AND BS 76.5. REPAIRED PER EA 96-190940. - [SDR 0201939612](https://openairdocs.org/sdr/0201939612), May 16, 2002: DOOR. CRACKED. During line mtc operations at ORD, the inner skin of the MLG fuselage mounted door RHS was found to sustained crack damage at two locations. Repaired per EA96-1 - [SDR 0103879612](https://openairdocs.org/sdr/0103879612), Aug 10, 2001: SKIN. CRACKED. During Hck in Atl a crack was found in the fuselage skin at the forward service door jamb, lower aft corner. the crack was trimmed out and repaired. .050" 2024- - [SDR 0103869612](https://openairdocs.org/sdr/0103869612), Aug 9, 2001: FRAME. CRACKED. During Hck in ATL the fuselage frame at sta 756 were inspected per EO 5311-01157, A 1.75 inch crack was found in the frame and a 2.0 crack was found in the righ - [SDR 0103859612](https://openairdocs.org/sdr/0103859612), Aug 3, 2001: FLOORBEAM. CRACKED. DURING AN HCK IN ATL, TWO CRACKS WERE FOUND IN THE VERTICAL WEB OF THE STA 237 FLOORBEAM. THE CRACKS ARE AT X=6 AND ARE APPROXIMATELY 1" LONG. THE CRACK ENDS AR - [SDR 0103849612](https://openairdocs.org/sdr/0103849612), Jul 31, 2001: ELEVATOR. CRACKED. During Hck in Atl the RH elevator skin at XET=167 was found cracked at the outboard end where the gear tab fairing is attached . Doubler made of 2014-t6 elevato - [SDR 0103839612](https://openairdocs.org/sdr/0103839612), Jul 31, 2001: FRAME. CRACKED. During an Hck in Atl, a crack was found on the RH MLG door hinge support frame at sta 737. The crack stopped at a fastener hole and is .5" long. Material 7075-t - [SDR 0000539612](https://openairdocs.org/sdr/0000539612), Jan 22, 2000: FRAME. CRACKED. CANTED FRAME CRACKED IN AFT ACCESORY COMPARTMENT AT BS 1143 UNDER ACTUATOR FOR AIRSTAIR. CUT OUT CRACKED AREA AND REPAIRED PER EA 98-16725. - [SDR 9903009612](https://openairdocs.org/sdr/9903009612), Jul 28, 1999: LINK. OUT OF ADJUST. NO GREEN OR RED NOSE GEAR LIGHT ON WHEN GEAR WAS EXTENDED FOR LANDING. CREW VISUALLY INSPECTED GEAR AND CONFIRMED NOSE GEAR TO BE IN UP POSITION. YELLOW EMERGEN - [SDR 9809309612](https://openairdocs.org/sdr/9809309612), May 15, 1998: HARNESS. FAILED. DURING APPROACH INTO FAR, NOSE LANDING GEAR GREEN DOWNLOCK LIGHT DID NOT ILLUMINATE AFTER GEAR EXTENSION. CREW DECLARED AN EMERGENCY AND AIRCRAFT LANDED WITHOUT - [SDR 9801759612](https://openairdocs.org/sdr/9801759612), Jan 24, 1998: GROUND SENSE. OUT OF ADJUST. AIRCRAFT FAILED TO SHIFT FROM GROUND MODE TO FLIGHT MODE AFTER TAKEOFF. FLIGHT WAS RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE RIGGED GROUND SENSE - [SDR 9801729612](https://openairdocs.org/sdr/9801729612), Jan 23, 1998: STRUT. FAILED. AIRCRAFT FAILED TO SHIFT FROM GROUND MODE TO FLIGHT MODE AFTER TAKEOFF. FLIGHT WAS RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE LANDIN - [SDR 9718939612](https://openairdocs.org/sdr/9718939612), Oct 8, 1997: BATTERY. DISCHARGED. FLASHLIGHT AT AFT FLIGHT ATTENDANT SEAT NOT BLINKING. REPLACED BATTERY, OPERATIONAL CHECK NORMAL. - [SDR 9709959612](https://openairdocs.org/sdr/9709959612), May 19, 1997: BOLT. LOOSE. DURING APPROACH, LANDING GEAR DOOR OPEN LIGHT REMAINED ON AFTER GEAR EXTENSION. CREW RECYCLED GEAR AND NORMAL INDICATIONS WERE ACHIEVED. AIRCRAFT LANDED WITHOUT - [SDR 9709949612](https://openairdocs.org/sdr/9709949612), May 15, 1997: CONNECTOR. CONTAMINATED. DURING APPROACH, LANDING GEAR DOOR OPEN LIGHT REMAINED ON AFTER GEAR EXTENSION. CREW DECLARED AN EMERGENCY AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REM - [SDR 9706139612](https://openairdocs.org/sdr/9706139612), Mar 22, 1997: RELAY. MALFUNCTIONED. DURING APPROACH, NOSE GEAR DOWNLOCK GREEN LIGHT DID NOT ILLUMINATE AFTER GEAR EXTENSION. CREW PERFORMED GO-AROUND PROCEDURES AND CYCLED GEAR HANDLE. NORMAL INDI - [SDR 9624439612](https://openairdocs.org/sdr/9624439612), Nov 11, 1996: FUEL CAP. BROKEN. ON TAKEOFF, TOWER NOTICED FUEL VENTING FROM RIGHT WING. TAKEOFF WAS ABORTED AT 90 KTS. MAINTENANCE FOUND OVERWING FUEL CAP BROKEN AND POPPED OFF. INSPECTED CAP - [SDR 9622699612](https://openairdocs.org/sdr/9622699612), Oct 21, 1996: BATTERY PACK. DISCHARGED. DURING LINE MAINTENANCE INSPECITON, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL. - [SDR 9618569612](https://openairdocs.org/sdr/9618569612), Aug 26, 1996: BULB. FAILED. DURING APPROACH, NOSE LANDING GEAR GREEN LIGHT DID NOT ILLUMINATE AFTER GEAR EXTENSION. PILOT REPLACED LIGHT BULB, CYCLED GEAR TO 'UP' POSITION AND NOSE GEAR UN - [SDR 9618399612](https://openairdocs.org/sdr/9618399612), Aug 22, 1996: WIRE HARNESS. LOOSE. DURING LINE MAINTENANCE INSPECTION, FOUND FLOOR PROXIMITY EMERGENCY LIGHTS AT ROW 14 INOPERATIVE. SECURED LOOSE HARNESS AT ROW 14, OPERATIONAL CHECK NORMAL. - [SDR 9606999612](https://openairdocs.org/sdr/9606999612), Mar 20, 1996: BATTERIES. DISCHARGED. DURING LINE MAINTENANCE INSPECTION, FOUND TAILCONE EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES AND OPERATIONAL CHECK NORMAL. - [SDR 9600039612](https://openairdocs.org/sdr/9600039612), Jan 2, 1996: UNSAFE LIGHT. ILLUMINATED. DURING CLIMB, THE NOSE LANDING GEAR UNSAFE LIGHT ILLUMINATED DURING UPLATCH CHECK. RECYCLED LANDING GEAR AND LIGHT REMAINED ILLUMINATED. AIRCRAFT RETURNED TO MS - [SDR 9514569612](https://openairdocs.org/sdr/9514569612), Aug 10, 1995: ANGLE. CRACKED. DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND A 2 INCH CRACK IN THE AFT ENTRY DOOR PAN, LOWER CENTER BEAM ATTACH ANGLE AND VERTICAL ANGLE. REPAIRED PER EA - [SDR 9513839612](https://openairdocs.org/sdr/9513839612), Aug 8, 1995: BLKHD WEB. CRACKED. DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND A ONE INCH CRACK IN THE RUDDER SUPPORT CANTED BULKHEAD WEB AT FS 1143. REPAIRED WEB (P/N 9911842-101), PER E - [SDR 9513829612](https://openairdocs.org/sdr/9513829612), Jul 6, 1995: DOUBLER. CRACKED. DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND CRACKS IN THE MAIN CAIN RING PAN WINDOW BELT DOUBLERS, FS 427 AT LONGERON 14L AND FS 851 AT LONGERON 12L. RE - [SDR 9513819612](https://openairdocs.org/sdr/9513819612), Jun 28, 1995: SKIN. CORRODED. DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND CORROSION ON THE INNER FUSELAGE SKIN AT FS 165 LBL 5. REPAIRED SKIN (P/N 5911401-5), PER EA 96-98098. - [SDR 9513809612](https://openairdocs.org/sdr/9513809612), Jun 28, 1995: DOUBLER. CORRODED. DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND CORROSION ON THE AFT CARGO DOOR JAMB DOUBLER FS 917. REPAIRED DOUBLER (P/N 5910158-25) PER EA 96-98092. - [SDR 9509609612](https://openairdocs.org/sdr/9509609612), Jun 14, 1995: FITTING. CORRODED. DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND CORROSION ON THE TAIL JACK ADAPTER FITTING AT FS 996, ABOVE THE AFT FUSELAGE BELLY SKIN. REPLACED FITTING PE - [SDR 9509599612](https://openairdocs.org/sdr/9509599612), Jun 14, 1995: FITTING. CORRODED. DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND CORROSION ON THE LONGERON 23L END FITTING AT FS 994. REPLACED THE END FITTING PER SRM 53-01. - [SDR 9513429612](https://openairdocs.org/sdr/9513429612), Jun 13, 1995: SKIN. CORROSION. DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND CORROSION ON THE LEFT HORIZONTAL STABILIZER UPPER AFT SKIN, LOWER SURFACE OF THE STRINGER NR 3 LAP FLANGE. 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