# Douglas DC-9-31 - Type: Aircraft model (FAA registry) - Registry code: 3022065 - Manufacturer (registry): DOUGLAS - Model: DC-9-31 - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 2 · Turbo-jet - Seats: 85 - Weight class: 20,000 lb and over - Cruise speed: 315 mph - Certification: Type certificated - Data sheet: [TCDS A6WE](https://openairdocs.org/tcds/A6WE) (OpenAirDocs) - Holder: The Boeing Company - Registered aircraft: 0 - Page: https://openairdocs.org/model/douglas-dc-9-31 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [AD 2026-13-15](https://openairdocs.org/ad/2026-13-15): Navigation · Boeing 707-100 Long Body, 707-200, 707-100B Long Body and 74 more. Effective Jul 1, 2026 - [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026 - [AD 2025-09-11](https://openairdocs.org/ad/2025-09-11): Flight controls · Boeing DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83) and 20 more. Effective Jun 12, 2025 - [AD 2024-20-02](https://openairdocs.org/ad/2024-20-02): Fuselage · Boeing 717-200, DC-9-11, DC-9-12 and 16 more. Effective Oct 21, 2024 - [AD 2023-12-15](https://openairdocs.org/ad/2023-12-15): Navigation · Boeing 707-100 Long Body, 707-200, 707-100B Long Body and 74 more. Effective Jun 21, 2023 - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 2018-03-04](https://openairdocs.org/ad/2018-03-04): Airspeed/Mach Indicator · Boeing 717-200, DC-9-11, DC-9-12 and 23 more. Effective Mar 16, 2018 - [AD 2016-03-06](https://openairdocs.org/ad/2016-03-06): Fuel · Boeing DC-9-11, DC-9-12, DC-9-13 and 21 more. Effective Mar 23, 2016 - [AD 2014-22-05](https://openairdocs.org/ad/2014-22-05): Fuselage · Boeing DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Dec 11, 2014 - [AD 2014-22-04](https://openairdocs.org/ad/2014-22-04): Fuselage · Boeing DC-9-11, DC-9-12, DC-9-13 and 13 more. Effective Dec 11, 2014 - [AD 2014-05-27](https://openairdocs.org/ad/2014-05-27): Navigation · Airbus A319-111, A319-112, A319-113 and 99 more. Effective May 2, 2014 - [AD 2013-25-12](https://openairdocs.org/ad/2013-25-12): Fuselage Main Bulkhead · Boeing DC-9-11, DC-9-12, DC-9-13 and 13 more. Effective Jan 31, 2014 - [AD 2011-21-08](https://openairdocs.org/ad/2011-21-08): Equipment/Furnishings · ATR - GIE Avions de Transport Régional ATR42-200, ATR42-300, ATR42-320 and 202 more. Effective Nov 23, 2011 - [AD 2011-12-01](https://openairdocs.org/ad/2011-12-01): Equipment/Furnishings · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 268 more. Effective Aug 1, 2011 - [AD 2011-07-04](https://openairdocs.org/ad/2011-07-04): Fuel · Boeing DC-9-14, DC-9-15, DC-9-15F and 12 more. Effective May 6, 2011 - [AD 2010-25-04](https://openairdocs.org/ad/2010-25-04): Compliance · Boeing DC-9-31, DC-9-32, DC-9-32 (VC-9C) and 14 more. Effective Jan 11, 2011 - [AD 2010-23-10](https://openairdocs.org/ad/2010-23-10): Wings · Boeing DC-9-14, DC-9-15, DC-9-15F and 12 more. Effective Dec 14, 2010 - [AD 2009-15-16 R1](https://openairdocs.org/ad/2009-15-16-R1): Doors · Intrusion/Penetration Resistance Flightdeck Door and Reinforced… (Aircraft Reconfig Technologies STC ST02463AT). Effective Aug 5, 2010 - [AD 2010-10-20](https://openairdocs.org/ad/2010-10-20): Fuel · Boeing DC-9-31, DC-9-32, DC-9-32 (VC-9C) and 8 more. Effective Jun 21, 2010 - [AD 2009-21-10 R1](https://openairdocs.org/ad/2009-21-10-R1): Oxygen · Airbus A300 B4-605R, A300 B4-620, A300 B4-622 and 138 more. Effective Feb 4, 2010 - [AD 2009-24-21](https://openairdocs.org/ad/2009-24-21): Landing gear · Boeing DC-9-14, DC-9-15, DC-9-15F and 12 more. Effective Jan 8, 2010 - [AD 2009-03-03](https://openairdocs.org/ad/2009-03-03): Fuel boost pump of the center tank · Boeing DC-9-14, DC-9-15, DC-9-15F and 12 more. Effective Mar 31, 2009 - [AD 2008-18-06](https://openairdocs.org/ad/2008-18-06): Tail cone slide · Protective rigid cover over the tail cone emergency evacuation… (Derlan STC ST735SO). Effective Jan 7, 2009 - [AD 2008-11-15](https://openairdocs.org/ad/2008-11-15): Fuel tank systems · Boeing 717-200, DC-9-11, DC-9-12 and 21 more. Effective Jul 3, 2008 - [AD 2008-06-27](https://openairdocs.org/ad/2008-06-27): Evacuation system's shear-pin · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 91 more. Effective Apr 28, 2008 - [AD 2008-03-12](https://openairdocs.org/ad/2008-03-12): Rudder pedal bracket · Boeing DC-8-11, DC-8-12, DC-8-21 and 47 more. Effective Mar 11, 2008 - [AD 2007-17-18](https://openairdocs.org/ad/2007-17-18): Static port heater assemblies · Boeing DC-9-11, DC-9-12, DC-9-13 and 20 more. Effective Oct 2, 2007 - [AD 2006-21-06](https://openairdocs.org/ad/2006-21-06): Structural inspection revisions · Boeing DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Nov 29, 2006 - [AD 2006-18-05](https://openairdocs.org/ad/2006-18-05): Disconnect panel · Boeing DC-9-14, DC-9-15, DC-9-15F and 12 more. Effective Oct 11, 2006 - [AD 2006-18-02](https://openairdocs.org/ad/2006-18-02): Replacing the clamp bases for the fuel vent pipe · Boeing DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Oct 4, 2006 - [AD 2006-13-18](https://openairdocs.org/ad/2006-13-18): Bonding jumper from the boost pump volute to the fuel tank structure · Boeing DC-9-31, DC-9-32, DC-9-32F and 5 more. Effective Aug 9, 2006 - [AD 2006-10-14](https://openairdocs.org/ad/2006-10-14): Stop pad support fittings · Boeing 717-200, DC-9-11, DC-9-12 and 22 more. Effective Jun 21, 2006 - [AD 2006-07-08](https://openairdocs.org/ad/2006-07-08): Main fuselage frame · Boeing DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective May 5, 2006 - [AD 2006-06-04](https://openairdocs.org/ad/2006-06-04): Main landing gear (MLG) · Boeing DC-9-11, DC-9-12, DC-9-13 and 17 more. Effective Apr 20, 2006 - [AD 2006-01-02](https://openairdocs.org/ad/2006-01-02): Upper lock link assembly of the nose landing gear (NLG) · Boeing DC-9-14, DC-9-15, DC-9-15F and 18 more. Effective Feb 22, 2006 - [AD 2005-13-18](https://openairdocs.org/ad/2005-13-18): Battery terminal screws · Boeing DC-9-11, DC-9-12, DC-9-13 and 20 more. Effective Aug 1, 2005 - [AD 2005-07-18](https://openairdocs.org/ad/2005-07-18): Cargo configuration · Class E cargo compartment and pallet system (Aeronautical Engineers STC SA1993SO). Effective May 11, 2005 - [AD 2005-07-03](https://openairdocs.org/ad/2005-07-03): Rear spar of the left and right wings · Boeing DC-9-11, DC-9-12, DC-9-13 and 17 more. Effective May 4, 2005 - [AD 2004-25-14](https://openairdocs.org/ad/2004-25-14): Main landing gear (MLG) · Boeing DC-9-14, DC-9-15, DC-9-15F and 17 more. Effective Jan 20, 2005 - [AD 2004-22-01](https://openairdocs.org/ad/2004-22-01): Cargo restraint strap assemblies · Cargo restraint straps (Airline Container Manufacturing STC ST01004NY). Effective Dec 1, 2004 - [AD 2004-18-11](https://openairdocs.org/ad/2004-18-11): Outboard idler hinge fitting of the left and right wing · Boeing DC-9-14, DC-9-15, DC-9-15F and 12 more. Effective Oct 13, 2004 - [AD 2004-07-14](https://openairdocs.org/ad/2004-07-14): Upper and Lower Corners and Upper Center of Door Cutout of Aft Pressure Bulkhead · Boeing DC-9-15, DC-9-31 and DC-9-32. Effective May 11, 2004 - [AD 2004-07-05](https://openairdocs.org/ad/2004-07-05): Engine Pylon Aft Upper Spar Straps (Caps) · Boeing DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective May 5, 2004 - [AD 2004-07-04](https://openairdocs.org/ad/2004-07-04): Ballast transformers · Boeing DC-9-14, DC-9-15, DC-9-15F and 12 more. Effective May 5, 2004 - [AD 2004-05-25](https://openairdocs.org/ad/2004-05-25): Seat Locking Pins · Boeing DC-9-14, DC-9-15, DC-9-15F and 18 more. Effective Apr 19, 2004 - [AD 2004-05-08](https://openairdocs.org/ad/2004-05-08): Power relays · Boeing DC-9-31 and DC-9-32. Effective Apr 7, 2004 - [AD 2003-03-15 R1](https://openairdocs.org/ad/2003-03-15-R1): Airplane Flight Manual (AFM) - oxygen masks · Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body and 90 more. Effective Dec 22, 2003 - [AD 2003-24-05](https://openairdocs.org/ad/2003-24-05): Tailcone emergency exit passageway · Boeing DC-9-31 and DC-9-32. Effective Dec 16, 2003 - [AD 2003-20-06](https://openairdocs.org/ad/2003-20-06): Internal doublers · Boeing DC-9-31 and DC-9-32. Effective Oct 20, 2003 - [AD 2003-17-07 R1](https://openairdocs.org/ad/2003-17-07-R1): Auxiliary power unit (APU) · Boeing DC-10-10, DC-10-10F, DC-10-15 and 57 more. Effective Sep 24, 2003 Historical (superseded or no longer in force): - [AD 2022-09-18](https://openairdocs.org/ad/2022-09-18) (historical): Navigation · Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body and 72 more. Effective May 23, 2022 - [AD 2012-18-05](https://openairdocs.org/ad/2012-18-05) (historical): Fuel · Boeing DC-9-11, DC-9-12, DC-9-13 and 21 more. Effective Oct 11, 2012 - [AD 2009-15-16](https://openairdocs.org/ad/2009-15-16) (historical): Doors · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 18 more. Effective Jul 6, 2010 - [AD 2009-21-10](https://openairdocs.org/ad/2009-21-10) (historical): Oxygen · Airbus A300, Model B4-605R, A300, Model B4-620, A300, Model B4-622 and 138 more. Effective Dec 17, 2009 - [AD 2006-07-25](https://openairdocs.org/ad/2006-07-25) (historical): Rudder pedal bracket · McDonnell Douglas DC-8-11, DC-8-12, DC-8-21 and 44 more. Effective May 16, 2006 - [AD 2005-19-08](https://openairdocs.org/ad/2005-19-08) (historical): Main landing gear (MLG) shock strut cylinder · McDonnell Douglas DC-9-14, DC-9-15, DC-9-15F and 12 more. Effective Oct 21, 2005 - [AD 2004-23-11](https://openairdocs.org/ad/2004-23-11) (historical): Center wing rear spar · Boeing DC-9-14, DC-9-15, DC-9-21 and 11 more. Effective Dec 20, 2004 - [AD 2003-17-07](https://openairdocs.org/ad/2003-17-07) (historical): Fire Extinguishers for the Engine and Auxiliary Power Unit (APU) · McDonnell Douglas DC-10-10, DC-10-10F, DC-10-15 and 60 more. Effective Sep 24, 2003 - [AD 2003-03-15](https://openairdocs.org/ad/2003-03-15) (historical): Airplane Flight Manual (AFM) - Oxygen Masks · Boeing 707 Series (all), 720 Series (all), 727 Series (all) and 75 more. Effective Mar 7, 2003 - [AD 2003-03-08](https://openairdocs.org/ad/2003-03-08) (historical): Eletrical connectors · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Mar 7, 2003 - [AD 2001-26-24](https://openairdocs.org/ad/2001-26-24) (historical): Transformer Ballast Assembly · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 14 more. Effective Feb 8, 2002 - [AD 2001-24-15](https://openairdocs.org/ad/2001-24-15) (historical): Chafing of the Wiring of the Attendants' Work Light of the Aft Cabin · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 13 more. Effective Jan 16, 2002 - [AD 98-26-09](https://openairdocs.org/ad/98-26-09) (historical): Fatigue Cracking In Doorstops And Doorjamb · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Jan 22, 1999 - [AD 98-08-24](https://openairdocs.org/ad/98-08-24) (historical): Fuselage Skin Or Doubler · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective May 22, 1998 - [AD 96-21-01](https://openairdocs.org/ad/96-21-01) (historical): Main Landing Gear Hydraulic Damper Assembly · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Nov 14, 1996 - [AD 74-08-09 R2](https://openairdocs.org/ad/74-08-09-R2) (historical): Waste Receptacles · Aero Spacelines 377, 377MG, 377SGT and 268 more. Effective Jul 29, 1996 - [AD 96-13-03](https://openairdocs.org/ad/96-13-03) (historical): Structural Integrity · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Jul 24, 1996 - [AD 96-02-05](https://openairdocs.org/ad/96-02-05) (historical): Rudder Pedals Adjuster Hub Assembly · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 20 more. Effective Mar 25, 1996 - [AD 95-12-25](https://openairdocs.org/ad/95-12-25) (historical): FIREX Pipe Assembly · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 20 more. Effective Jul 24, 1995 - [AD 95-04-01](https://openairdocs.org/ad/95-04-01) (historical): AFM - Limitations - Windshear · Boeing 727-100 Series, 727-200 Series, 737-100 Series and 54 more. Effective Mar 8, 1995 - [AD 94-03-01](https://openairdocs.org/ad/94-03-01) (historical): Maintenance Inspection Program · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Mar 14, 1994 - [AD 93-13-07](https://openairdocs.org/ad/93-13-07) (historical): Install Water Drain System · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 17 more. Effective Aug 18, 1993 - [AD 92-27-07](https://openairdocs.org/ad/92-27-07) (historical): Rudder Pedals Adjuster Hub Assembly · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 20 more. Effective Jan 22, 1993 - [AD 87-14-07 R1](https://openairdocs.org/ad/87-14-07-R1) (historical): Maintenance Inspection Program · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Dec 23, 1988 - [AD 77-14-19](https://openairdocs.org/ad/77-14-19) (historical): Engine Pylon · McDonnell Douglas DC-9-11, DC-9-12, DC-9-13 and 15 more. Effective Aug 23, 1977 All 260: https://openairdocs.org/model/douglas-dc-9-31/ads.md ## Information bulletins (advisory) (2) - [SAIB NM-15-03](https://openairdocs.org/saib/NM-15-03): Flight Controls. Issued Nov 24, 2014 - [SAIB NM-06-57](https://openairdocs.org/saib/NM-06-57): Reports of damage to airplanes and to property on the ground caused by blue or clear ice falling from airplanes.. Issued Jul 27, 2006 ## Registered aircraft None registered with this model now. ## NTSB investigations (59, newest 50) 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 NYC07LA121](https://openairdocs.org/ntsb/NYC07LA121), May 18, 2007: Douglas DC-9-31 (N1799U), Syracuse, NY, substantial damage. Probable cause: The senior ground agent's failure to follow written procedures and directives. - [NTSB CHI02FA148](https://openairdocs.org/ntsb/CHI02FA148), Jun 4, 2002: Douglas DC-9-31 (N8986E), Minneapolis, MN, substantial damage. Probable cause: The failure of the right main landing gear due to fatigue. - [NTSB CHI01FA129](https://openairdocs.org/ntsb/CHI01FA129), May 1, 2001: Douglas DC-9-31 (N9333), Minneapolis, MN, substantial damage. Probable cause: The partial failure of the aircraft tug for undetermined reasons. - [NTSB CHI01IA046](https://openairdocs.org/ntsb/CHI01IA046), Dec 14, 2000: McDonnell Douglas DC-9-31 (N9342), Chicago, IL, incident, minor damage. Probable cause: Failure of the captain to maintain clearance from the other airplane that was stopped. Factors relating to this accident were the snow-covered taxiways and the ground controller disregarding the… - [NTSB FTW01RA006](https://openairdocs.org/ntsb/FTW01RA006), Oct 6, 2000: Douglas DC-9-31 (N936ML), Reynosa, Mexico, 4 fatal - [NTSB MIA99IA249](https://openairdocs.org/ntsb/MIA99IA249), Sep 9, 1999: Douglas DC-9-31 (N993Z), Nashville, TN, incident, minor damage. Probable cause: A preexisting crack on the left main landing gear outer cylinder housing and the first officer's failure to maintain the proper rate of descent resulting in a hard landing on touchdown, and… - [NTSB CHI97IA195](https://openairdocs.org/ntsb/CHI97IA195), Jul 5, 1997: McDonnell Douglas DC-9-30 (N963N), Flint, MI, incident, minor damage. Probable cause: An electrical short in the wiring of the left wingtip oscillating position light auto transformer and a failure of the system circuit breaker. - [NTSB BFO92FA020](https://openairdocs.org/ntsb/BFO92FA020), Jan 18, 1992: Douglas DC-9-30 (N964VJ), Horseheads, NY, substantial damage. Probable cause: THE AIRCRAFT ENCOUNTERED A SUDDEN WIND GUST DURING LANDING FLARE, WHICH RESULTED IN A HARD LANDING. - [NTSB CHI91IA175](https://openairdocs.org/ntsb/CHI91IA175), May 29, 1991: Douglas DC-9-32 (N933ML), Kansas City, MO, incident, no damage. Probable cause: INADEQUATE DESIGN BY THE MANUFACTURERS. FACTORS ASSOCIATED WITH THE INCIDENT ARE INADEQUATE CERTIFICATION/APPROVAL BY THE FEDERAL AVIATION ADMINISTRATION AND CLEAR AIR TURBULENCE. - [NTSB NYC91LA021](https://openairdocs.org/ntsb/NYC91LA021), Oct 29, 1990: Mcdonnell Douglas DC-9-31 (N972VJ), Columbus, OH, minor damage. Probable cause: FAILURE BY PILOTS OF THE OTHER AIRCRAFT TO SEE AND ALTER TAXI PATH TO AVOID THE STANDING AIRCRAFT. - [NTSB MIA91LA005](https://openairdocs.org/ntsb/MIA91LA005), Oct 4, 1990: Mcdonnell Douglas DC-9-31 (N8923E), Cape Canaveral, FL, no damage, 1 fatal. Probable cause: FAILURE OF THE CAPTAIN TO FOLLOW PROCEDURES, HIS IMPROPER IN-FLIGHT PLANNING/DECISION BY ALLOWING THE AIRCRAFT TO CONTINUE INTO THE OVERHANG (ANVIL) OF A THUNDERSTORM, FAILURE OF THE PASSENGERS TO… - [NTSB ATL90IA126](https://openairdocs.org/ntsb/ATL90IA126), Jun 8, 1990: Douglas DC-9-31 (N8943E), Atlanta, GA, incident, minor damage. Probable cause: INADEQUATE MAINTENANCE INSPECTION BY OPERATOR PERSONNEL WHICH RESULTED IN OPERATION OF THE TIRE WHILE UNDER-INFLATED. - [NTSB ATL90IA124](https://openairdocs.org/ntsb/ATL90IA124), May 31, 1990: Douglas DC-9-31 (N8982E), Atlanta, GA, incident, no damage. Probable cause: FAILURE OF THE AC CROSS TIE RELAY, WHICH PREVENTED THE GENERATORS FROM BEING RECONNECTED TO THE ELECTRICAL SYSTEM. A FACTOR IN THE INCIDENT WAS THE LOSS OF THE LEFT GENERATOR IN FLIGHT. FACTORS… - [NTSB ATL90IA076](https://openairdocs.org/ntsb/ATL90IA076), Mar 14, 1990: Douglas DC-9-31 (N8951E), Atlanta, GA, incident, minor damage. Probable cause: INADEQUATE SERVICING OF THE AIRPLANE BY OPERATOR MAINTENANCE PERSONNEL WHICH RESULTED IN THE BURST TIRE. FACTORS IN THE ACCIDENT WERE HYDRAULIC SYSTEM LINES WHICH WERE FRACTURED BY DEBRIS FROM THE… - [NTSB ATL90IA060](https://openairdocs.org/ntsb/ATL90IA060), Jan 31, 1990: Douglas DC-9-31 (N8978E), Louisville, KY, incident, minor damage. Probable cause: THE DISABLING OF THE MAIN LANDING GEAR TORQUE LINK WHICH ALLOWED THE TRUCK TO ROTATE FREELY. THE TORQUE LINK WAS DISABLED WHEN EXCESSIVE VIBRATION WAS GENERATED BY EXCESSIVE PLAY OF THE TORQUE LINK… - [NTSB DEN90IA012](https://openairdocs.org/ntsb/DEN90IA012), Oct 18, 1989: Mcdonnell Douglas DC-9 (N922RW), Monte Vista, CO, incident, minor damage. Probable cause: THE POOR INFLIGHT PLANNING AND DECISIONS MADE BY THE FLIGHT CREW FOLLOWING THE FAILURE OF THE NUMBER TWO GENERATOR CONSTANT SPEED DRIVE UNIT. CONTRIBUTING FACTORS TO THE ACCIDENT WERE THE FAILURE OF… - [NTSB MKC89IA024](https://openairdocs.org/ntsb/MKC89IA024), Nov 16, 1988: Mcdonnell Douglas DC9-31 (N965VJ), Minneapolis, MN, incident, minor damage. Probable cause: THE FAILURE OF THE LEFT MAIN LANDING GEAR TIRE CARCASS AND THE INGESTION OF THE TIRE DEBRIS INTO THE LEFT ENGINE WHICH HINDERED NORMAL OPERATION. - [NTSB ATL89FA020](https://openairdocs.org/ntsb/ATL89FA020), Oct 30, 1988: Mcdonnell Douglas DC-9-31 (N918RW), Memphis, TN, substantial damage - [NTSB MIA88NA070](https://openairdocs.org/ntsb/MIA88NA070), Dec 28, 1987: McDonnell Douglas DC-9-31 (N8948E), Pensacola, FL, substantial damage - [NTSB ATL88IA037](https://openairdocs.org/ntsb/ATL88IA037), Nov 15, 1987: Douglas DC-9-31 (N8988E), Cleveland, OH, incident, minor damage - [NTSB ATL86LA202](https://openairdocs.org/ntsb/ATL86LA202), Jul 21, 1986: Douglas DC-9-31 (N9332), Montgomery, AL, minor damage - [NTSB CHI86MA142](https://openairdocs.org/ntsb/CHI86MA142), May 17, 1986: Mcdonnell Douglas DC-9-31 (N973VJ), Chicago, IL, incident, minor damage - [NTSB DCA86AA018](https://openairdocs.org/ntsb/DCA86AA018), Feb 21, 1986: McDonnell Douglas DC-9-31 (N961VJ), Erie, PA, substantial damage - [NTSB CHI85IA101](https://openairdocs.org/ntsb/CHI85IA101), Jan 31, 1985: Mcdonnell Douglas DC-9-31 (N8959E), Chicago, IL, incident, no damage - [NTSB DCA85IA001](https://openairdocs.org/ntsb/DCA85IA001), Oct 14, 1984: McDonnell Douglas DC-9-30 (N965VJ), Erie, PA, incident, minor damage - [NTSB ATL84LA235](https://openairdocs.org/ntsb/ATL84LA235), Jul 25, 1984: Douglas DC-9-31 (N8978E), Augusta, GA, no damage - [NTSB DCA84AA028](https://openairdocs.org/ntsb/DCA84AA028), Jun 13, 1984: Mcdonnell Douglas DC-9-31 (N964VJ), Detroit, MI, substantial damage - [NTSB DCA84AA012](https://openairdocs.org/ntsb/DCA84AA012), Dec 20, 1983: Douglas DC-9-31 (N994Z), Sioux Falls, SD, substantial damage, 1 fatal - [NTSB CHI83IA063](https://openairdocs.org/ntsb/CHI83IA063), Dec 19, 1982: Douglas DC9-30 (N9344), Pellston, MI, incident, no damage - [NTSB SEA82IA101](https://openairdocs.org/ntsb/SEA82IA101), Jul 5, 1982: Douglas DC-9-31 (N919RW), Boise, ID, incident, minor damage - [NTSB LAX80DA106](https://openairdocs.org/ntsb/LAX80DA106), Jun 7, 1980: Douglas DC9-30 (N915RW), Santa Ana, CA, minor damage - [NTSB NYC80FA032](https://openairdocs.org/ntsb/NYC80FA032), Apr 4, 1980: Douglas DC-9 (N8922E), Southeast, PA, no damage - [NTSB DCA80IA014](https://openairdocs.org/ntsb/DCA80IA014), Mar 20, 1980: Douglas DC-9 (N943VJ), Washington, DC, incident, no damage - [NTSB DCA78IA018](https://openairdocs.org/ntsb/DCA78IA018), Jul 21, 1978: Douglas DC-9 (N959N), Oshkosh, WI, incident, minor damage - [NTSB NYC77FA011](https://openairdocs.org/ntsb/NYC77FA011), Nov 12, 1976: Douglas DC-9 (N979VJ), Buffalo, NY, substantial damage - [NTSB DCA76AZ029](https://openairdocs.org/ntsb/DCA76AZ029), Jun 23, 1976: Douglas DC-9 (N994VJ), Philadelphia, PA, destroyed - [NTSB SEA761S041](https://openairdocs.org/ntsb/SEA761S041), Apr 1, 1976: Douglas DC-9 (N9333), Spokane, WA, incident, no damage - [NTSB MIA76IM055](https://openairdocs.org/ntsb/MIA76IM055), Dec 31, 1975: Douglas DC9-31 (N8933E), Greer, SC, incident, minor damage - [NTSB MKC76IK030](https://openairdocs.org/ntsb/MKC76IK030), Nov 29, 1975: Douglas DC-9 (N994Z), St Louis, MO, incident, minor damage - [NTSB NYC75IN057](https://openairdocs.org/ntsb/NYC75IN057), Nov 5, 1974: Douglas DC-9 (N960VJ), Boston, MA, incident, minor damage - [NTSB DCA75AZ009](https://openairdocs.org/ntsb/DCA75AZ009-201663), Sep 11, 1974: Douglas DC9-31 (N8984E), Charlotte, NC, destroyed, 71 fatal - [NTSB IAD74AI035](https://openairdocs.org/ntsb/IAD74AI035), Dec 17, 1973: Douglas DC-9 (N8978E), Greensboro, NC, substantial damage - [NTSB DCA74AZ004](https://openairdocs.org/ntsb/DCA74AZ004), Jul 31, 1973: Douglas DC-9 (N975NE), Boston, MA, destroyed, 88 fatal - [NTSB SEA73IS038](https://openairdocs.org/ntsb/SEA73IS038), Jun 22, 1973: Douglas DC-9 (N9338), Spokane, WA, incident, minor damage - [NTSB DCA73AZ004](https://openairdocs.org/ntsb/DCA73AZ004), Dec 20, 1972: Douglas DC-9 (N954N), Chicago, IL, destroyed, 10 fatal - [NTSB DCA72A0010](https://openairdocs.org/ntsb/DCA72A0010), May 18, 1972: Douglas DC9-31 (N8961E), Ft Lauderdale, FL, destroyed - [NTSB MIA72AM121](https://openairdocs.org/ntsb/MIA72AM121), May 10, 1972: Douglas DC-9 (N8916E), Atlanta, GA, substantial damage - [NTSB NYC72IN095](https://openairdocs.org/ntsb/NYC72IN095), Feb 13, 1972: Douglas DC-9 (N994VJ), Pittsburg, PA, incident, no damage - [NTSB NYC72AN074](https://openairdocs.org/ntsb/NYC72AN074), Dec 4, 1971: Douglas DC-9 (N8943E), Raleigh, NC, minor damage, 2 fatal - [NTSB DCA71A0010](https://openairdocs.org/ntsb/DCA71A0010), Jun 6, 1971: Douglas DC-9 (N9345), Duarte, CA, destroyed, 50 fatal All 59: https://openairdocs.org/model/douglas-dc-9-31/ntsb.md ## FAA accident and incident reports (455, newest 50) 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 20070518014589A](https://openairdocs.org/incident/20070518014589A), May 18, 2007: Doug DC931 (N1799U), Buffalo, NY, Substantial damage. (-23) On may 18, 2007, at 1320 EST, a northwest airlines, DC-9-31, flight 1411, N1799U experienced a cabin pressurization problem during climb after departing… - [Incident 20061211026339I](https://openairdocs.org/incident/20061211026339I), Dec 11, 2006: Doug DC931 (N9338), Omaha, NE. (-23) N9338, DC-9-31, was operated by northwest airlines, inc. as flight 1723 from detroit, MI, to Omaha, NE. The pilot executed a go around because of a gear… - [Incident 20060707021639I](https://openairdocs.org/incident/20060707021639I), Jul 7, 2006: Doug DC931 (N1799U), Rochester, NY. (-23) The nwaa maintenance log book page #3705980 stated the following entry from company maintenance. Discrepancy: station employee reports smoke in cabin at… - [Incident 20060706013349I](https://openairdocs.org/incident/20060706013349I), Jul 6, 2006: Doug DC931 (N8978E), Kansas City, MO. (-23) On July 6, 2006 northwest airlines flight 1752, a DC-9-31, lost the number two engine upper side cowling on climb out from Kansas City International… - [Incident 20060407009779I](https://openairdocs.org/incident/20060407009779I), Apr 7, 2006: Doug DC931 (N8944E), Detroit, MI, Minor damage. (-23) Aircraft was parked at gate in a designated parking area. The gate was located adjacent to an active service drive. Passengers were in the process of… - [Incident 20051102032749I](https://openairdocs.org/incident/20051102032749I), Nov 2, 2005: Doug DC931 (N8921E), Syracuse, NY. (-23) On November 2, 2005, at 2217 EST, a DC-9-31, N8921E, registered to northwest airlines, declared an emergency when six miles on final due to a slat… - [Incident 20050425006079I](https://openairdocs.org/incident/20050425006079I), Apr 25, 2005: Doug DC931 (N8934E), Pittsburgh, PA. (-23) On April 25, 2005, at 0740 EDT, northwest 1049, N88934E, a DC-9 departed kpit for kdtw and returned to land @ kpit indicating a compressor stall. The… - [Incident 20040321006729I](https://openairdocs.org/incident/20040321006729I), Mar 21, 2004: Doug DC931 (N920RW), Grand Rapids, MI. (-23) Nwa flight #514, a DC-9-31, operating between msp/lga diverted to grr due to smoke in the cockpit. The flight landed and taxied to the gate without… - [Incident 20040130002749I](https://openairdocs.org/incident/20040130002749I), Jan 30, 2004: Doug DC931 (N8945E), Cleveland, OH, Minor damage. (-23) Tow-truck driver collided with aircraft RH #5 wing slat while driving away after disconnecting tow bar. Canopy of tug (hough/T300SL) punctured a 4 x 4.5… - [Incident 20031124029529I](https://openairdocs.org/incident/20031124029529I), Nov 24, 2003: Doug DC931 (N8950E), Greer, SC, Minor damage. (-23) On November 24, 2003, northwest airlines inc., flight 1913, a DC-9-31, N8950E, was departing gate B-4 from the Greenville Spartanburg international… - [Incident 20030407006779I](https://openairdocs.org/incident/20030407006779I), Apr 7, 2003: Doug DC931 (N8926E), Indianapolis, IN, Minor damage. (-23) On April 7, 2003 northwest airlines flight 1478 declared an emergency due to hydraulic system fluid loss and diverted to Indianapolis, IN. Maintenance… - [Incident 20021224035559I](https://openairdocs.org/incident/20021224035559I), Dec 24, 2002: Doug DC931 (N916RW), Raleigh-Durham, NC. (-23) On December 24, 2002, at approximately 1854 local time, a Douglas DC-9-31, N916RW, operated under 14CFR121 by northwest airlines, inc., departed runway… - [Incident 20020622019259I](https://openairdocs.org/incident/20020622019259I), Jun 22, 2002: Doug DC931 (N962N), Buffalo, NY. (-23) On Saturday, June 22, 2002, during a flight from hpn to dtw, the number one engine oil temperature moved into the yellow range for more than 15 minutes… - [Accident 20020603024629A](https://openairdocs.org/incident/20020603024629A), Jun 3, 2002: Doug DC931 (N8986E), Minneapolis, MN, Substantial damage. (-23) Northwest airlines flight 877 from louisville KY (sdf) to Minneapolis MN (msp) experienced normal flight until the landing roll out. The co-pilot was… - [Incident 20020320004609I](https://openairdocs.org/incident/20020320004609I), Mar 20, 2002: Doug DC931 (N9335), Buffalo, NY. (-23) On Wednesday, March 20, 2002, northwest airlines flight 366 departed dtw and was climbing through FL 33 when the lefthand engine experienced a compressor… - [Incident 20020201005089I](https://openairdocs.org/incident/20020201005089I), Feb 1, 2002: Doug DC931 (N933JK), Gulfport, MS, Minor damage. (-23) On 02/01/2002, southeast airlines flight #221 departed gpt R/2 32 @ 17:00 gmt enroute to pie non-stop. They experienced a main l.g. tire failure on… - [Incident 20011124036059I](https://openairdocs.org/incident/20011124036059I), Nov 24, 2001: Doug DC931 (N8932E), Detroit, MI. (-23) Nwa 1182 was issued hold short instructions and read them back correctly, but crossed runway 21R at taxiway foxtrot without ATC clearance. Mes 3017 was… - [Incident 20010802019479I](https://openairdocs.org/incident/20010802019479I), Aug 2, 2001: Doug DC931 (N949AX), Pittsburgh, PA. (-23) On August 2, 2001, at 0550 EST. Airborne express flight #182 landed on runway 10L after reporting seeing and smelling electrical smoke in the cockpit.… - [Accident 20010501011919A](https://openairdocs.org/incident/20010501011919A), May 1, 2001: Doug DC931 (N9333), Minneapolis, MN, No damage. (-23)The following is derived from the nstb report: on may 1, 2001, at 1437 CDT, a Douglas DC-9/31, N9333, operated by northwest airlines, ic. As flight 682,… - [Incident 20010302008469I](https://openairdocs.org/incident/20010302008469I), Mar 2, 2001: Doug DC931 (N929AX), Syracuse, NY. (-23)On March 2, 2001 at 0631 EST, a Mcdonnell Douglas DC-9-31, s/n 45874, N929AX, registered to abx air inc., experienced a hazardous material spill in the… - [Incident 20001221037539I](https://openairdocs.org/incident/20001221037539I), Dec 21, 2000: Doug DC931 (N916RW), Syracuse, NY, Minor damage. (-23) On December 21, 2000, at 1932 EST, a Mcdonnell Douglas DC-9-31, s/n 47144, N916RW, operated by northwest airlines inc., expereinced a landing door… - [Incident 20001119030609I](https://openairdocs.org/incident/20001119030609I), Nov 19, 2000: Doug DC931 (N9343), Grand Rapids, MI, Minor damage. (-23) On 11/19/00, at approx. 1148 pm EST, during the landing roll on the snow covered runway, 1" loose snow, nwaa flight #1107, a DC-9-31, right-hand main… - [Incident 20000914027239I](https://openairdocs.org/incident/20000914027239I), Sep 14, 2000: Doug DC931 (N8926E), Buffalo, NY, Minor damage. (-23)On Thursday, September 14, 2000, at 2003 local, a DC-9-30, N8926E, operated by northwest airlines, after landing on runway 23 at Buffalo niagra… - [Incident 20000804028459I](https://openairdocs.org/incident/20000804028459I), Aug 4, 2000: Doug DC931 (N935VJ), Indianapolis, IN. (-23)On 8/4/00, an us airways (usaa) Douglas DC-9-30 aircraft, operating under flight 662, departed indianpolis (ind) en route to washingon, DC (dca) when… - [Incident 20000802037589I](https://openairdocs.org/incident/20000802037589I), Aug 2, 2000: Doug DC931 (N9330), Philadelphia, PA. (-23) Aircraft landed phl with both hyraulic systems reported inop. Emergency equipment responded. Aircraft blew two tire on roll out of emergency landing. Pax… - [Incident 20000723036049I](https://openairdocs.org/incident/20000723036049I), Jul 23, 2000: Doug DC931 (N8978E), Pittsburgh, PA. (-23)On July 23, 2000, at 0730E, a DC-9, s/n 47327, registered as N8978E, and operating as "nwaa" flight #1451 diverted to and landed at "pit". The aircraft… - [Incident 20000529017059I](https://openairdocs.org/incident/20000529017059I), May 29, 2000: Doug DC931 (N9343), Kansas City, MO. (-23)On may 30, 2000, at approximately 0616 CDT, northwest airlines flight 1030, a Douglas DC-9-30, N9343, attempted take off at Kansas City, MO, (mci). Take… - [Incident 20000502033179I](https://openairdocs.org/incident/20000502033179I), May 2, 2000: Doug DC931 (N8950E), Buffalo, NY. (-23)On Tuesday, may 2, 2000, during descent into Buffalo niagara international airport, the crew noticed the odor of electrical smoke in th cockpit. They… - [Incident 19991229038449I](https://openairdocs.org/incident/19991229038449I), Dec 29, 1999: Doug DC931 (N964N), Traverse City, MI. After landing runway 28 tvc, flight #1539 slid off the departure end of runway. The crew of 4 and 100 passengers were not injuried and the aircraft was not… - [Incident 19991209034689I](https://openairdocs.org/incident/19991209034689I), Dec 9, 1999: Doug DC931 (N8945E), Dallas-Ft Worth, TX. (-23) Northwest airlines has begun to modify it's DC-9 aircraft with a hamilton standard electronic dual cabin pressurization system. This modification is… - [Incident 19990917028379I](https://openairdocs.org/incident/19990917028379I), Sep 17, 1999: Doug DC931 (N943VJ), Syracuse, NY, Minor damage. (-23) On 09/17/1999 at 0728 EDT at Syracuse international airport (ksyr), a DC-9-31, N943VJ, operated by express one international (eisa), experienced bird… - [Incident 19990916034799I](https://openairdocs.org/incident/19990916034799I), Sep 16, 1999: Doug DC931 (N963N), Detroit, MI. (-23) At start of descent from flight level 260 to 12000 feet cabin pressure was lost and cabin pressure climbed from 5000 feet to 16000 feet before crew was… - [Incident 19990909029049I](https://openairdocs.org/incident/19990909029049I), Sep 9, 1999: Doug DC931 (N993Z), Nashville, TN, Minor damage. (.19) On September 9, 1999, at about 1138 central daylight time, a Douglas DC-9-31, N993Z, twa flight 600, registered to first security bank, north American… - [Incident 19990830025119I](https://openairdocs.org/incident/19990830025119I), Aug 30, 1999: Doug DC931 (N8929E), St Louis, MO. Prior to push back, contract maintenance changed the left quantity fuel guage, push back was on time. Three miles out, the left aircraft engine indicated a… - [Incident 19990107016419I](https://openairdocs.org/incident/19990107016419I), Jan 7, 1999: Doug DC931 (N923RW), Detroit, MI, Minor damage. (-5)During taxi for take-off nwaa flight 1824 struck a snow removal dump turck resulting in minor damage to the right wing tip. There were no injuries. - [Incident 19981010043089I](https://openairdocs.org/incident/19981010043089I), Oct 10, 1998: Doug DC931 (N991VJ), Philadelphia, PA. (-5) The flight crew stated that they were enroute from Washington national airport (dca) to logan international airport (bos). The flight crew diverted and… - [Incident 19980607037329I](https://openairdocs.org/incident/19980607037329I), Jun 7, 1998: Doug DC931 (N8933E), Omaha, NE. (-5)N8933E, a DC-9-31, enroute houston, TX, to minneapolis, MN, diverted to Omaha, NE, after the #1 engine shut down. Contract maintenance changed the fuel… - [Incident 19980526035739I](https://openairdocs.org/incident/19980526035739I), May 26, 1998: Doug DC931 (N922RW), Indianapolis, IN. (-5) Right engine torched on starting. There were no EGT or fire indications from the cockpit. The flight crew received the information from a mechanic on the… - [Incident 19980404013759I](https://openairdocs.org/incident/19980404013759I), Apr 4, 1998: Doug DC931 (N9339), Detroit, MI. Narrative: at lift off, left engine lost power. Leaving debris on runway. Aircraft returned and landed without incident. - [Incident 19980323017339I](https://openairdocs.org/incident/19980323017339I), Mar 23, 1998: Doug DC931 (N9332), Syracuse, NY. NLG unsafe light illuminated. Cycled gear and used emergency extned. Doun/locked thru viewer. Prox switch broken. - [Incident 19980322007909I](https://openairdocs.org/incident/19980322007909I), Mar 22, 1998: Doug DC931 (N916RW), Kansas City, MO, Minor damage. Narrative: after take off the pilot heard a loud bang and reported a vibration in the nose wheel. An emergency was declared and crash, fire, and rescue were on… - [Incident 19971201038909I](https://openairdocs.org/incident/19971201038909I), Dec 1, 1997: Doug DC931 (N993VJ), Buffalo, NY. Narrative: on Monday, December 1, 1997, a Douglas DC-9, N993VJ, operated by us airways experienced a faulty nose gear down indication on approach to buf while… - [Incident 19971101036509I](https://openairdocs.org/incident/19971101036509I), Nov 1, 1997: Doug DC9 (N921RW), Salt Lake City, UT, Minor damage. Struck large bird on final. Nose cone replaced. - [Incident 19971002033439I](https://openairdocs.org/incident/19971002033439I), Oct 2, 1997: Doug DC9 (N9332), Rochester, NY. Narrative: on October 2, 1997, at 1150 LCL EDT, a northwest airlines DC-9 enroute to white plains, NY diverted to Rochester, NY international airport with fuel… - [Incident 19970924032549I](https://openairdocs.org/incident/19970924032549I), Sep 24, 1997: Doug DC9 (N997VJ), Syracuse, NY. Narrative: on Wednesday, September 24, 1997, at 710 EST, a Douglas DC-9, N997VJ, flight 1629, operated by us airways on a flight from albany, new york to… - [Incident 19970916034029I](https://openairdocs.org/incident/19970916034029I), Sep 16, 1997: Doug DC931 (N960VJ), Raleigh-Durham, NC, Minor damage. Narrative: us airways DC-9 (N960VJ) was pushed back from gate 17 at rdu. This aircraft was pushed back onto the ramp behind a us airways B-737 (N263AU) parked… - [Incident 19970726027829I](https://openairdocs.org/incident/19970726027829I), Jul 26, 1997: Doug DC9 (N946AX), Wichita, KS. Fuel leak en route reported. No leaks found. Fuel quanity gage incorrect. Removed replaced fuel probe. - [Incident 19970705023089I](https://openairdocs.org/incident/19970705023089I), Jul 5, 1997: Doug DC931 (N963N), Flint, MI. Smoke in cockpit en route. Landed. Smoke stopped when generators turned off. Switch shorted. Breakers failed. - [Incident 19970202010679I](https://openairdocs.org/incident/19970202010679I), Feb 2, 1997: Doug DC931 (N962N), Grand Forks, ND, Minor damage. Narrative: on 02/02/97 at 2106 CST, a DC-9 N962N, with a crew of 6 and 93 pax, operated by northwest airlines and flown by capt. grover n. stein, lost… - [Incident 19961230043919I](https://openairdocs.org/incident/19961230043919I), Dec 30, 1996: Doug DC931 (N9336), Columbus, OH, Minor damage. Narrative: aircraft left wing tip struck runway prior to or during a go-around. Damage was to LH landing light, position light and leading edge slat. Lower… All 455: https://openairdocs.org/model/douglas-dc-9-31/incidents.md ## Service difficulty reports (7,433, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR Y2PA20121010049](https://openairdocs.org/sdr/Y2PA20121010049), Oct 10, 2012: SOCKET. DAMAGED. ROW 13 WHITE EMERGENCY LIGHT IN FLOOR LIGHTS FOUND TO BE INOPERATIVE DURING INSPECTION. MX REPLACED THE LAMP HOLDER ASSY (SOCKET) IAW AMM 33-52-01 AT ROW 13. OP - [SDR Y2PA20121010048](https://openairdocs.org/sdr/Y2PA20121010048), Oct 10, 2012: SOCKET. DAMAGED. LAST RED EMERGENCY LIGHT IN AISLE FLOOR FOUND TO BE INOPERATIVE DURING INSPECTION. MX R & R THE LAST RED EMERGENCY LIGHT LAMP HOLDER ASSEMBLY ON AISLE FLOOR IAW - [SDR Y2PA20121010047](https://openairdocs.org/sdr/Y2PA20121010047), Oct 10, 2012: BATTERY PACK. DISCHARGED. EMERGENCY LIGHTS FROM EXIT ROW FORWARD FOUND TO BE INOPERATIVE IN FLOOR DURING INSPECTION. REPLACED THE AFT BATTERY PACK I/A/W DC-9 MM 33-52-01. OPS CHECK WAS G - [SDR Y2PA20121010046](https://openairdocs.org/sdr/Y2PA20121010046), Oct 10, 2012: BATTERY PACK. DISCHARGED. EMERGENCY LIGHTS FROM EXIT ROW FORWARD FOUND TO BE INOPERATIVE IN FLOOR DURING INSPECTION. REPLACED FORWARD BATTERY PACK I/A/W DC-9 MM 33-52-01. OPS CHECK WAS G - [SDR Y2PA20120523027](https://openairdocs.org/sdr/Y2PA20120523027), May 22, 2012: PAN. CORRODED. FORWARD LOWER CARGO DOOR LOWER PAN CORRODED. MX REMOVED CORRODED PAN AND PERFORMED SPLICE. REPAIR IAW SRM 53-05, FIG 44 AND EA 96-51-02 R1. - [SDR Y2PA2011093000026](https://openairdocs.org/sdr/Y2PA2011093000026), Sep 30, 2011: WIRE. BROKEN. PASSENGER CABIN EMERGENCY FLOOR ESCAPE PATH LIGHTING FOUND TO BE INOPERATIVE WHILE PERFORMING A SERVICE CHECK. MX FOUND A SHORT IN THE EMERGENCY EXIT FLOOD LIGH - [SDR Y2PA2011011000001](https://openairdocs.org/sdr/Y2PA2011011000001), Jan 8, 2011: WIRE. DAMAGED. CABIN OVERHEAD EMERGENCY LIGHTS FOUND INOPERATIVE DURING PERFORMANCE OF AN A-CHECK. MX REPLACED BATTERY PACKS WITH SERVICEABLE. AFTER REPLACEMENT OF BATTERY PAC - [SDR Y2PA2010112900032](https://openairdocs.org/sdr/Y2PA2010112900032), Nov 25, 2010: BATTERY PACK. DISCHARGED. RT AFT NACELLE LIGHT DOES NOT ILLUMINATE WITH EMERGENCY LIGHT SWITCH. FOUND DURING SERVICE CHECK. MX REPLACED THE EMERGENCY POWER SUPPLY IAW MM33-53-00. ACFT RE - [SDR DALA1017379949](https://openairdocs.org/sdr/DALA1017379949), Jul 23, 2010: LIGHT. INOPERATIVE. DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR THE CATWALK IN THE TAIL COMPARTMENT WAS INOPERATIVE. MAINTENANCE REPLACED THE LIGHT - [SDR DALA1017369949](https://openairdocs.org/sdr/DALA1017369949), Jul 23, 2010: FUSE. BLOWN. DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 8-10 OF THE CABIN WERE INOPERATIVE. MAINTENANCE REPLACED THE FUSE IN THE POWER - [SDR DALA1015629949](https://openairdocs.org/sdr/DALA1015629949), Jul 2, 2010: BATTERY PACK. DISCHARGED. DURING LINE CHECK MAINTENANCE FOUND EMERGENCY LIGHTS AT ROW 8 THRU 10 INOP. MAINTENANCE REPLACED BATTERY PACK PER IAW AMM 33-53-00. OPERATIONAL CHECK OF LIGHTS - [SDR DALA1015249997](https://openairdocs.org/sdr/DALA1015249997), Jul 1, 2010: BATTERY PACK. DISCHARGED. DURING LINE CHECK MAINTENANCE FOUND EMERGENCY LIGHTS AT ROW 18 THRU 21 INOP. MAINTENANCE REPLACED BATTERY PACK PER IAW AMM 33-53-00. OPERATIONAL CHECK OF LIGHTS - [SDR DALA1013589936](https://openairdocs.org/sdr/DALA1013589936), Jun 17, 2010: SKIN. CRACKED. DURING LINE CHECK FOUND CRACK IN FORWARD ENTRY DOOR INNER SKIN AT FASTENER HOLE. R & R LOWER AFT DOOR INNER SKIN IAW SRM. - [SDR DALA1013349995](https://openairdocs.org/sdr/DALA1013349995), Jun 12, 2010: LAMP. INOPERATIVE. DURING LINE CHECK MX FOUND EMERGENCY LIGHTS IN CAT WALK AFT 2 LAMPS INOP. FOUND LIGHTS ASSY CIRCUIT BAD. R & R AFT AND MIDDLE LIGHT ASSEMBLIES IAW WDM 33-51-03 - [SDR DALA1012689935](https://openairdocs.org/sdr/DALA1012689935), Jun 8, 2010: WIRE. BROKEN. DURING LINE CHECK, MX FOUND EMERGENCY PATH LIGHT AT ROW 14 INOP. MX DISCOVERED THAT A WIRE WAS BROKEN AT CONNECTOR OF LIGHT. MX REPLACED WIRE HARNESS FROM UNDER - [SDR DALA1012679989](https://openairdocs.org/sdr/DALA1012679989), Jun 6, 2010: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK, FOUND CAT WALK AND AFT TAIL CONE RELEASE HANDLE EMERGENCY LIGHT INOP. MX REPLACED POWER SUPPLY PACK IAW WD 33-51-01. OPS CHECK OF LIGHTS NOW - [SDR DALA1010879989](https://openairdocs.org/sdr/DALA1010879989), May 21, 2010: BATTERY PACK. DISCHARGED. ON FLIGHT CHECK MX FOUND EMERGENCY LIGHTS IN THE AFT 4 ROWS IN COACH INOP. MX R & R BATTERY PACK FOR EMERGENCY LIGHT. OPS CHECK OF LIGHTS NOW CHECK GOOD. - [SDR DALA101037](https://openairdocs.org/sdr/DALA101037), May 19, 2010: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK MX, FOUND L1 DOOR EMERGENCY LIGHT INOP. MX REPLACED L1 DOOR EMERGENCY POWER SUPPLY IAW AMM 33-53-00. OPS CHECK OF LIGHTS WAS GOOD. - [SDR DALA101036](https://openairdocs.org/sdr/DALA101036), May 19, 2010: BATTERY PACK. DISCHARGED. DURING LINE CHECK MX, FOUND AFT TAIL COMPARTMENT EMERGENCY LIGHTS INOP. MX REPLACED AFT TAIL COMPARTMENT BATTERY PACK IAW WDM 33-51-01. OPERATION OF LIGHTS NOW - [SDR DALA108749995](https://openairdocs.org/sdr/DALA108749995), Apr 25, 2010: FUSE. FAILED. DURING MX CHECK FOUND LAST 4 SEAT EMERGENCY TRACK LIGHTS INOP. MX FOUND FUSE BLOWN IN BATTERY PACK. REPLACED FUSE AND OPS CHECK OF LIGHTS IS NOW GOOD IAW AMM 33 - [SDR DALA108769974](https://openairdocs.org/sdr/DALA108769974), Apr 23, 2010: BATTERY PACK. MALFUNCTIONED. DURING MX CHECK FOUND FWD OVERWING EMERGENCY EXIT LIGHTS WERE DIM. BATTERY PACK WAS REPLACED IAW AMDS 33-53-00. OPS CHECK OF LIGHTS IS NOW GOOD. - [SDR DALA108759974](https://openairdocs.org/sdr/DALA108759974), Apr 23, 2010: BATTERY PACK. DISCHARGED. DURING MAINTENANCE CHECK FOUND FWD OVERWING EMERGENCY EXIT LIGHTS WERE DIM. BATTERY PACK WAS REPLACED PER IAW AMDS 33-53-00. OPERATIONAL CHECK OF LIGHTS IS NOW - [SDR DALA108109995](https://openairdocs.org/sdr/DALA108109995), Apr 16, 2010: BATTERY PACK. INOPERATIVE. DURING LAYOVER CHECK MX FOUND AFT EMERGENCY EXIT SIGN DIDN'T ILLUMINATE DURING LIGHT TEST. MX REPLACED EXIT SIGN BATTERY PACK IAW MM 33-53-00. SIGN NOW LIGHTS U - [SDR DALA106839974](https://openairdocs.org/sdr/DALA106839974), Mar 30, 2010: FUSE. FAILED. DURING A POWER SURGE, THE F/A REPORTED THAT THE EMERGENCY PATHWAY LIGHTING IN THE FIRST CLASS SECTION OF THE CABIN DID NOT ILLUMINATE AS DID THE COACH CLASS SEC - [SDR DALA106709935](https://openairdocs.org/sdr/DALA106709935), Mar 29, 2010: WIRE. BROKEN. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE FIRST CLASS SECTION OF THE CABIN HAD FAILED. MX FOUND A BROKEN WIRE AND REPAIRED IT. THE - [SDR DALA106349974](https://openairdocs.org/sdr/DALA106349974), Mar 26, 2010: BATTERY PACK. INOPERATIVE. DURING LINE CHECK, MX FOUND THE COCKPIT EMERGENCY LIGHTING WAS INOPERATIVE. MX REPLACED THE BATTERY PACK AND THE LIGHT RETURNED TO AN OPERATIONAL CONDITION. - [SDR DALA106339974](https://openairdocs.org/sdr/DALA106339974), Mar 26, 2010: BATTERY PACK. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE OVERHEAD EMERGENCY ESCAPE LIGHTING IN THE FWD HALF OF THE CABIN WERE INOPERATIVE. MX REPLACED THE BATTERY PACK AND THE LIGH - [SDR DALA106329969](https://openairdocs.org/sdr/DALA106329969), Mar 26, 2010: BATTERY. DISCHARGED. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING AFT THROUGH ROW 9 OF THE CABIN WERE TOO DIM TO PROVIDE ESCAPE GUIDANCE. MX CHARGED THE BATTERIES - [SDR DALA106169936](https://openairdocs.org/sdr/DALA106169936), Mar 21, 2010: BATTERY PACK. DISCHARGED. DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 18-21 OF THE CABIN WERE INOPERATIVE. MAINTENANCE REPLACED THE BATTERY PACK AND - [SDR DALA106159936](https://openairdocs.org/sdr/DALA106159936), Mar 21, 2010: BATTERY PACK. DISCHARGED. DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR THE CATWALK IN THE TAIL COMPARTMENT WAS INOPERATIVE. MAINTENANCE REPLACED THE BATTE - [SDR DALA106159336](https://openairdocs.org/sdr/DALA106159336), Mar 21, 2010: BATTERY PACK. DISCHARGED. DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR THE CATWALK IN THE TAIL COMPARTMENT WAS INOPERATIVE. MAINTENANCE REPLACED THE BATTE - [SDR DALA105939935](https://openairdocs.org/sdr/DALA105939935), Mar 17, 2010: CONNECTOR. DISCONNECTED. DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROW 20 OF THE CABIN WAS INOPERATIVE. MAINTENANCE FOUND A CONNECTOR IN THE WIRE HARNE - [SDR DALA105929945](https://openairdocs.org/sdr/DALA105929945), Mar 17, 2010: BATTERY. DISCHARGED. DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 5-8 & 18-21 OF THE CABIN WERE INOPERATIVE. MAINTENANCE REPLACED THE APPROPRIATE - [SDR DALA105589995](https://openairdocs.org/sdr/DALA105589995), Mar 15, 2010: WIRE. DAMAGED. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR THE CATWALK IN THE TAIL COMPARTMENT WAS INOPERATIVE. MX FOUND A BAD SPLICE IN THE POWER SUPP - [SDR DALA105519996](https://openairdocs.org/sdr/DALA105519996), Mar 11, 2010: WEB. CRACKED. DURING LINE CHECK FOUND CRACK IN TAIL COMPARTMENT WEB STRUCTURE AT BS 1038 L11. REPAIRED IAW SRM 51-30-2. - [SDR DALA103869995](https://openairdocs.org/sdr/DALA103869995), Feb 19, 2010: BATTERY PACK. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE FIRST CLASS SECTION OF THE CABIN HAD FAILED. MX REPLACED THE BATTERY PACK AND THE LIGHTS - [SDR DALA10386995](https://openairdocs.org/sdr/DALA10386995), Feb 19, 2010: BATTERY PACK. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE FIRST CLASS SECTION OF THE CABIN HAD FAILED. MX REPLACED THE BATTERY PACK AND THE LIGHTS - [SDR DALA103719936](https://openairdocs.org/sdr/DALA103719936), Feb 14, 2010: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR THE CATWALK IN THE TAIL COMPARTMENT WAS INOPERATIVE. MX REPLACED THE EMERGENCY LIGHT POWER S - [SDR DALA103519974](https://openairdocs.org/sdr/DALA103519974), Feb 11, 2010: BATTERY PACK. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE EXTERIOR EMERGENCY LIGHT WAS INOPERATIVE. MX REPLACED THE BATTERY PACK AND THE LIGHT RETURNED TO AN OPERATIONAL CONDITION. - [SDR DALA102449945](https://openairdocs.org/sdr/DALA102449945), Feb 1, 2010: BATTERY PACK. WEAK. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 5-7 AND THE RT OVERWING EMERGENCY EXIT SIGN WERE WEAK. MX REPLACED THE BATTERIES AND THE - [SDR DALA101719936](https://openairdocs.org/sdr/DALA101719936), Jan 26, 2010: BATTERY PACK. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR THE CATWALK IN THE TAIL COMPARTMENT WAS INOPERATIVE. MX REPLACED THE BATTERY PACK AND THE LI - [SDR DALA100969996](https://openairdocs.org/sdr/DALA100969996), Jan 25, 2010: CONNECTOR. DISCONNECTED. DURING LINE CHECK, MX FOUND THAT THE RT AFT RED EMERGENCY PATHWAY LIGHTING WAS INOPERATIVE. MX FOUND A CONNECTOR IN THE WIRE HARNESS UNPLUGGED, RECONNECTED IT, - [SDR DALA100349936](https://openairdocs.org/sdr/DALA100349936), Jan 13, 2010: BATTERY PACK. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE RT FWD OVERWING EMERGENCY EXIT SIGN WAS INOPERATIVE. MX REPLACED THE BATTERIES. OPS CHECK WAS GOOD. - [SDR DALA100269936](https://openairdocs.org/sdr/DALA100269936), Jan 9, 2010: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT ALL OF THE EMERGENCY PATHWAY LIGHTS FOR THE CATWALK IN THE TAIL COMPARTMENT WERE INOPERATIVE. MX REPLACED THE EMERGENCY LIGHTS - [SDR DALA100239935](https://openairdocs.org/sdr/DALA100239935), Jan 9, 2010: DOUBLER. CRACKED. DURING LINE CHECK FOUND FUSELAGE CRACK AT DOUBLER ABOVE LT PYLON T/E. REPAIRED IAW SRM 53-01-04. - [SDR DALA100189933](https://openairdocs.org/sdr/DALA100189933), Jan 5, 2010: BATTERY PACK. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 5-7 OF THE CABIN WERE INOPERATIVE. MX REPLACED THE BATTERIES IN THE POWER PACK. OPS CHEC - [SDR DALA100179933](https://openairdocs.org/sdr/DALA100179933), Jan 5, 2010: SIGN. INOPERATIVE. DURING LINE CHECK, MX FOUND THAT THE RT OVERWING EMERGENCY EXIT SIGN WAS INOPERATIVE. MX REPLACED THE BATTERIES. OPS CHECK WAS GOOD. - [SDR DALA100059988](https://openairdocs.org/sdr/DALA100059988), Jan 2, 2010: WIRE. LOOSE. DURING LINE CHECK FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 7-10 OF THE CABIN WERE INOPERATIVE. MX FOUND A LOOSE WIRE IN THE CONNECTOR, REPAIRED THE CON - [SDR NWAA094569944](https://openairdocs.org/sdr/NWAA094569944), Dec 29, 2009: POWER SUPPLY. INOPERATIVE. DURING LINE CHECK MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 18-21 OF THE CABIN AND THE CAT WALK LOCATION WERE INOPERATIVE. MAINTENANCE REPLA - [SDR NWAA094359957](https://openairdocs.org/sdr/NWAA094359957), Dec 16, 2009: BATTERY PACK. DISCHARGED. DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 11-13 AND 18-21 OF THE CABIN WERE TOO DIM TO PROVIDE ESCAPE GUIDANCE IF OBSCURE All 7,433: https://openairdocs.org/model/douglas-dc-9-31/reports.md ## STCs that may be installed (OpenAirDocs) (301, first 50) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [STC ST02463AT](https://openairdocs.org/stc/ST02463AT): Installation of an Intrusion/Penetration Resistance Flightdeck Door and Reinforced Flightdeck Door Surround. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc - [STC ST00030IB](https://openairdocs.org/stc/ST00030IB): Installation of Test Tech ELT. APTOZ EHF - [STC ST09180AC](https://openairdocs.org/stc/ST09180AC): Installation of DeVore Wing Forward Position Lights. The Boeing Company - [STC ST09181AC](https://openairdocs.org/stc/ST09181AC): Installation of main landing gear spotlights. The Boeing Company - [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc - [STC SA1003NW](https://openairdocs.org/stc/SA1003NW): Installation of CDRI-II interior retrofit kit. Safran Cabin Inc - [STC SA2040NM](https://openairdocs.org/stc/SA2040NM): Installation of closet and windscreen. Safran Cabin Inc - [STC SA335NW](https://openairdocs.org/stc/SA335NW): Installation of Contemporary Deep Rack Interior. Safran Cabin Inc - [STC SA3469NM](https://openairdocs.org/stc/SA3469NM): Installation of Closet/Stowage Compartments/Coat Compartment/ Coatroom. Safran Cabin Inc - [STC SA3494NM](https://openairdocs.org/stc/SA3494NM): Installation of auxiliary galley. Safran Cabin Inc. Lists DC-9 Series - [STC SA7079NM](https://openairdocs.org/stc/SA7079NM): Installation C&D Interiors passenger service units, overhead storage units, sidewall panels, and ceiling panels. Safran Cabin Inc - [STC ST00418LA](https://openairdocs.org/stc/ST00418LA): Installation of cart stowage unit P/N 101740-202. Safran Cabin Inc - [STC ST01336LA](https://openairdocs.org/stc/ST01336LA): Installation of a reinforced cockpit door. Safran Cabin Inc - [STC SA3165NM](https://openairdocs.org/stc/SA3165NM): Installation of Floor Proximity Emergency Escape Path Marking System. Bruce Aerospace Inc - [STC ST00092LA](https://openairdocs.org/stc/ST00092LA): Instalation of interior fluorescent cabin lighting system. Bruce Aerospace Inc - [STC ST00069AT](https://openairdocs.org/stc/ST00069AT): Installation of a Fairchild Digital or Sundstrand Universal expanded parameters digital flight data recorder. Acron Aviation Inc - [STC ST01518NY](https://openairdocs.org/stc/ST01518NY): Installation of Flight Systems Cabin Surveillance System (CSS). Acron Aviation Inc - [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc - [STC ST00984CH](https://openairdocs.org/stc/ST00984CH): Installation of Rockwell Collins FPI-955 Electronic Horizontal Situation Indicators (EHSI). Amphenol Cable and Interconnect Technologies Inc - [STC ST01017CH](https://openairdocs.org/stc/ST01017CH): Installation of an AlliedSignal CAS-81 TCAS II System with dual AlliedSignal Mode S Transponders. Amphenol Cable and Interconnect Technologies Inc - [STC ST01019CH](https://openairdocs.org/stc/ST01019CH): Installation of a Rockwell Collins GNLS-910 GPS Flight Management System. Amphenol Cable and Interconnect Technologies Inc - [STC ST01167CH](https://openairdocs.org/stc/ST01167CH): Installation of an AlliedSignal MK-VII Enhanced Ground Proximity Warning System. Amphenol Cable and Interconnect Technologies, Inc - [STC ST01404CH](https://openairdocs.org/stc/ST01404CH): Installation of Universal Avionics System Corporation Multi-Function Display. Amphenol Cable and Interconnect Technologies, Inc - [STC ST01818CH](https://openairdocs.org/stc/ST01818CH): Installation of a Honeywell Enhanced Ground Proximity Warning System. Amphenol Cable and Interconnect Technologies, Inc - [STC ST01887CH](https://openairdocs.org/stc/ST01887CH): Installation of GPS antenna provisions. Amphenol Cable and Interconnect Technologies, Inc - [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC - [STC ST02000AT](https://openairdocs.org/stc/ST02000AT): Installation of SAF-T-GLO Aerospace Limited's photoluminescent floor proximity emergency escape path marking system (FPEEPMS). STG Aerospace Inc - [STC ST02876AT](https://openairdocs.org/stc/ST02876AT): Installation of a Free Flight Model 2101 I/O Approach Plus Global Positioning System (GPS), Universal Model MFD 640 Multi-function Display (MFD), and Provisions for an Aviation Communication & Surveillance Systems (ACSS) Terrain & Traffic Collision Avoidance System (TTCAS). Woven Electronics, LLC - [STC ST02896AT](https://openairdocs.org/stc/ST02896AT): Installation of a Kannad Model 406-AF Emergency Locator Transmittter (ELT). Woven Electronics LLC - [STC ST03735AT](https://openairdocs.org/stc/ST03735AT): Installation of a LED Indirect Cabin Lighting System. Woven Electronics LLC - [STC SA2534SW-D](https://openairdocs.org/stc/SA2534SW-D): Replacement of Switch assembly Int'l Inflatables Co. P/N 68748, with DME Corp. P/N L-140 in emergency evacuation slide lighting system. Astronics Luminescent Systems Inc. Lists DC-9 Series - [STC SA2539SW-D](https://openairdocs.org/stc/SA2539SW-D): Replacement of light assembly, International Inflatables Co. P/N68555-1 with DME Corp. EL-104, EL-104A, and EL-104B in emergency slide lighting system. Astronics Luminescent Systems Inc. Lists DC-9 Series - [STC SA863EA](https://openairdocs.org/stc/SA863EA): Incorporation of DME Corporation emergency evacuation slide lighting system. Astronics Luminescent Systems Inc. Lists DC-9 Series - [STC ST02580AT](https://openairdocs.org/stc/ST02580AT): Lithium cell battery pack to replace currently approved alkaline battery pack used in escape slide emergency light system. Astronics Luminescent Systems Inc - [STC ST02929AT](https://openairdocs.org/stc/ST02929AT): Installation of an Artex Model C406-1 Emergency Locator Transmitter (ELT). Woven Electronics LLC - [STC ST03838AT](https://openairdocs.org/stc/ST03838AT): Installation of an Universal Avionics Application Server Unit (ASU) System Class II Electronic Flight Bag (EFB). Technical Aero Services Inc - [STC SA1220NW](https://openairdocs.org/stc/SA1220NW): Installation of Universal flight data recorder. Honeywell International Inc - [STC SA3173SO](https://openairdocs.org/stc/SA3173SO): Installation of the Mark-VII ground proximity and windshear warning system. Honeywell International Inc - [STC SA5920NM](https://openairdocs.org/stc/SA5920NM): Installation of 980-4100-HQUS Flight Data Recorder and Penny and Giles Quick Access Recorder in accordance with Document 755-3024, Rev. New-1, or later FAA approved revision. Honeywell International Inc - [STC ST00074AT](https://openairdocs.org/stc/ST00074AT): Installation of a Bendix/King Mode S transponder. Honeywell International Inc - [STC ST00075AT](https://openairdocs.org/stc/ST00075AT): Installation of a CAS-81 TCAS II. Honeywell International Inc - [STC ST00136AT](https://openairdocs.org/stc/ST00136AT): Installation of a Bendix/King CAS-81 and TRA-67 Mode S trannsponder. Honeywell International Inc - [STC ST00701AT](https://openairdocs.org/stc/ST00701AT): Installation of the RDR-4B weather radar/windshear system. Honeywell International Inc - [STC ST01828AT](https://openairdocs.org/stc/ST01828AT): Installation of a RTA-83A VHF Communication System. Honeywell International Inc - [STC SA3748SW](https://openairdocs.org/stc/SA3748SW): Installation of heat exchanger assembly (P/N 184060). Honeywell International Inc - [STC SA4398SW](https://openairdocs.org/stc/SA4398SW): Modification of air to air heat exchanger (P/N 179450-2-2 or194110-1). Honeywell International Inc. Lists DC-9 Series - [STC SA640NW](https://openairdocs.org/stc/SA640NW): Installation of contemporary deep rack interior. Safran Cabin Inc. Lists DC-9 Series - [STC ST00939LA](https://openairdocs.org/stc/ST00939LA): Installation of passenger entertainment system. Burrana Inc. Lists DC-9 Series - [STC ST04450AT](https://openairdocs.org/stc/ST04450AT): Installation of the dual Rockwell Collins TPR-901, ADS-B out capable trasnponder system and dual GPS-4000S position sensor. Avionics Support Group Inc All 301: https://openairdocs.org/model/douglas-dc-9-31/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Mcdonnell Douglas DC-9-31](https://openairdocs.org/model/mcdonnell-douglas-dc-9-31): 0 registered aircraft, registry code 302206A --- 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.