# N945AX: 1971 Mcdonnell Douglas DC-9-31, registration cancelled 2009-12-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 23, 2009
- Status when cancelled: Triennial form not returned
- Airframe: [Mcdonnell Douglas DC-9-31](https://openairdocs.org/model/mcdonnell-douglas-dc-9-31) (registry code 302206A)
- 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: 47551
- Year built: 1971
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-jet
- Airworthiness: Standard, transport
- Airworthiness date: November 9, 1992
- Certificate issued: October 26, 1989
- Last registry action: December 18, 2007
- Mode S code: AD1FD1
- Owner when cancelled: [Abx Air Inc](https://openairdocs.org/faa-owner/ABX%20AIR%20INC)
- Location: [Wilmington, OH](https://openairdocs.org/faa-place/OH/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.4607° N, 83.8443° W: Placed by OpenAirDocs at the center of ZIP code 45177, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N945AX
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=945AX
- Page: https://openairdocs.org/deregistered/N945AX-2009-12-23

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 Mcdonnell Douglas DC-9-31: https://openairdocs.org/model/mcdonnell-douglas-dc-9-31.md

## Service difficulty reports (71, newest 50)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR ABXA050069](https://openairdocs.org/sdr/ABXA050069), Mar 8, 2005: LONGERON. CORRODED. LONGERON 30 AT STA 945 WAS CORRODED BEYOND LIMITS. REPLACED LONGERON IAW DC-9 SRM 51-30-5 AND 51-30-2.
- [SDR ABXA050070](https://openairdocs.org/sdr/ABXA050070), Mar 8, 2005: SKIN. CRACKED. DURING ROUTINE LINE MAINTENANCE AT ILN, FOUND THE FUSELAGE SKIN CRACKED 1 INCH LONG AT STA 897 AND LONGERON 29 RT. SKIN WAS FOUND TO BE CORRODED BEYOND LIMITS O
- [SDR ABXA050003](https://openairdocs.org/sdr/ABXA050003), Jan 6, 2005: PRESSURE SWITCH. DEFECTIVE. SHORTLY AFTER T/O, FLOW LIGHT ON AUTO PRESSURE CONTROLLER ILLUMINATED. TRANSFER LOCKOUT AND STANDBY LIGHT ALSO ON. RAN ABNORMAL PER MANUAL SECTION 21, CHAPTER 3
- [SDR ABXA040267](https://openairdocs.org/sdr/ABXA040267), Jul 29, 2004: FRAME. CRACKED. LEFT FORWARD MAIN FRAME AT FUSELAGE STA 699 WAS CRACKED BEYOND LIMITS OF DC-9 S/B 53-131. CRACK RAN BETWEEN POINTS G - J. REPLACED FRAME IAW ABX EA 53400321-001
- [SDR ABXA040268](https://openairdocs.org/sdr/ABXA040268), Jul 29, 2004: FRAME. CRACKED. RIGHT FORWARD MAIN FRAME AT FUSELAGE STA 699 WAS CRACKED BEYOND LIMITS OF DC-9 S/B 53-131. CRACK RAN BETWEEN POINTS H - I. REPLACED FRAME IAW ABX EA 53400322-00
- [SDR ABXA040218](https://openairdocs.org/sdr/ABXA040218), Jun 7, 2004: SKIN. CRACKED. AFT LOWER CARGO DOOR SKIN WAS CRACKED AT THE DOOR HANDLE CUTOUT. REMOVED CRACKS, INSTALLED SCUFF PLATE IAW DC-9 SRM 52-05.
- [SDR ABXA040217](https://openairdocs.org/sdr/ABXA040217), Jun 4, 2004: SKIN. CRACKED. SKIN CRACKED ABOVE RIGHT PYLON AT RIVET, STA 1038, LONGERON 12 RIGHT. REPAIRED CRACK IAW DC-9 SRM 53-31-0.
- [SDR ABXA040216](https://openairdocs.org/sdr/ABXA040216), Jun 4, 2004: SKIN. CRACKED. SKIN CRACKED ABOVE LEFT PYLON AT RIVET, STA 1038, LONGERON 12 LEFT. REPAIRED CRACK IAW DC-9 SRM 53-31-0.
- [SDR ABXA040215](https://openairdocs.org/sdr/ABXA040215), Jun 4, 2004: CUSP WEB. CRACKED. CUSP WEB CRACKED IN TWO AREAS FS 237 TO FS 254, RIGHT BUTTLINE 45 TO RIGHT BUTTLINE 54. REPAIRED CUSP WEB IAW DC-9 SRM 53-01.
- [SDR ABXA040214](https://openairdocs.org/sdr/ABXA040214), Jun 4, 2004: SKIN. CRACKED. A .5 INCH CRACK COMING OUT OF FASTENER HOLE AT FORWARD LOWER CARGO DOOR UPPER CORNER FUSELAGE SKIN. INSTALLED REPAIR IAW EA 53100110-001.
- [SDR ABXA030084](https://openairdocs.org/sdr/ABXA030084), Feb 26, 2003: STRUCTURE. CONTAMINATED. UPON INITIAL GEAR EXTENSION, GEAR DID NOT EXTEND. AUX/ALT HYDRAULIC PUMPS WERE ON. ENGINE HYDRAULIC PUMPS WERE HIGH HYDRAULIC PRESSURE / QUANTITY WERE NORMAL. A
- [SDR ABXA030002](https://openairdocs.org/sdr/ABXA030002), Jan 1, 2003: WIRE. UNSECURE. FIRST OFFICERS YOKE LIGHT SPARKED WHEN LIFTED. SECURED WIRING TO CHART HOLDER IAW MM. OPS CHECKED GOOD.
- [SDR ABXA020341](https://openairdocs.org/sdr/ABXA020341), Nov 14, 2002: ANGLE. CORRODED. RIGHT L ANGLE AT STA 965, LBL 30 - 52, HAD HEAVY CORROSION. REPLACED L ANGLE IAW DC-9 SRM.
- [SDR ABXA020340](https://openairdocs.org/sdr/ABXA020340), Nov 12, 2002: DOUBLER. CRACKED. LEFT MAIN FRAME AT F.S. 699 WAS CRACKED IN FORWARD POCKET AT/BETWEEN "Z" CLIP ATTACH BOLTS. REPAIRED MAIN FRAME ON E.A. 53400110-001-1 AND DC-9 SRM.
- [SDR ABXA020339](https://openairdocs.org/sdr/ABXA020339), Nov 12, 2002: FITTING. CRACKED. FORWARD SIDE OF AFT PRESSURE BULKHEAD RIGHT VENTRAL DOOR WEB SUPPORT ANGLE WAS CRACKED. REPLACED SUPPORT ANGLE IAW DC-9 SRM 51-10-4, 51-30-2 AND 51-30-5.
- [SDR ABXA020338](https://openairdocs.org/sdr/ABXA020338), Nov 12, 2002: FLOORBEAM. CORRODED. FLOORBEAM AT STA 995 WAS CORRODED ON THE TOP FLANGE AT LEFT BUTT LINE 46. REPAIRED FLOOR BEAM IAW DC-9 SRM.
- [SDR ABXA020337](https://openairdocs.org/sdr/ABXA020337), Nov 11, 2002: FITTING. CRACKED. AFT LOWER CARGO DOOR, #3 BEAM AFT END FITTING WAS CRACKED. REPLACED AFT LOWER CARGO DOOR IAW DC-9 MM AND NON ROUTINE #0345.
- [SDR ABXA020336](https://openairdocs.org/sdr/ABXA020336), Nov 11, 2002: CLIP. CRACKED. AFT LOWER CARGO DOOR, INNER ANGLE AT #2 BEAM FITTING AREA WAS CRACKED. REPLACED AFT LOWER CARGO DOOR IAW DC-9 MM AND NON ROUTINE #0345.
- [SDR ABXA020335](https://openairdocs.org/sdr/ABXA020335), Nov 11, 2002: FITTING. CRACKED. AFT LOWER CARGO DOOR, #4 BEAM AFT END FITTING WAS CRACKED. REPLACED AFT LOWER CARGO DOOR IAW DC-9 MM AND NON ROUTINE #0345.
- [SDR ABXA020334](https://openairdocs.org/sdr/ABXA020334), Nov 11, 2002: FITTING. CRACKED. AFT LOWER CARGO DOOR, #2 BEAM FORWARD END FITTING WAS CRACKED. REPLACED AFT LOWER CARGO DOOR IAW DC-9 MM AND NON ROUTINE #0345.
- [SDR ABXA020333](https://openairdocs.org/sdr/ABXA020333), Nov 11, 2002: CLIP. CRACKED. AFT LOWER CARGO DOOR, #5 BEAM FORWARD END FITTING WAS CRACKED. REPLACED AFT LOWER CARGO DOOR IAW DC-9 MM AND NON ROUTINE #0345.
- [SDR ABXA020332](https://openairdocs.org/sdr/ABXA020332), Nov 11, 2002: PANEL. CRACKED. AFT LOWER CARGO DOOR, OUTER PAN CRACKED AT BLIND NUT AND BULGED OUT AT SAME LOCATION LOWER AFT CORNER. REPLACED AFT LOWER CORNER DOOR IAW DC-9 MM AND NON ROUTIN
- [SDR ABXA020331](https://openairdocs.org/sdr/ABXA020331), Nov 11, 2002: FRAME. CORRODED. LEVEL II CORROSION ON FRAME AT STA. 446, AFT SIDE, BETWEEN LONGERON 28 LEFT AND 28 RIGHT. REPAIRED FRAME IAW DC-9 SRM 53-03.
- [SDR ABXA020330](https://openairdocs.org/sdr/ABXA020330), Nov 11, 2002: SPLICE. CRACKED. LONGERON 30 END FITTING BETWEEN F.S. 579 AND 596 CRACKED ON BOTH VERTICAL FLANGES. REPLACED END FITTINGS IAW DC-9 SRM.
- [SDR ABXA020329](https://openairdocs.org/sdr/ABXA020329), Nov 11, 2002: LONGERON. CRACKED. LONGERON 29 LEFT CRACKED BETWEEN F.S. 579 AND 596. CRACKED ON BOTH VERTICAL FLANGES. REPAIRED LONGERON IAW REA D553-45780MR.
- [SDR ABXA020328](https://openairdocs.org/sdr/ABXA020328), Nov 8, 2002: SKIN. CRACKED. RUDDER TOP RIGHT SIDE HAD LARGE CRACK. REPLACED RUDDER IAW DC-9 SRM.
- [SDR ABXA020046](https://openairdocs.org/sdr/ABXA020046), Jul 9, 2002: WARNING SYSTEM. MALFUNCTIONED. UPON SELECTING GEAR DOWN, NOSE GEAR UNSAFE LIGHT ILLUMINATED AND NOSE GEAR GREEN LIGHT DID NOT COME ON. GEAR WARNING HORN SOUNDED. RECYCLED GEAR, ALL INDICATION
- [SDR ABXA010651](https://openairdocs.org/sdr/ABXA010651), Dec 25, 2001: BATTERY. DISCHARGED. WHEN EMERGENCY LIGHTS WERE SELECTED ON, THE PEANUT LIGHTS DID NOT ILLUMINATE. REPLACED THE EMERGENCY LIGHT BATTERY/CHARGER PACK IAW DC-9 MM.
- [SDR ABXA9900807](https://openairdocs.org/sdr/ABXA9900807), Nov 23, 1999: OUTFLOW VALVE. FAILED. AUTO-PRESSURIZATION WAS INOPERATIVE. AIRCRAFT WOULD NOT DEPRESSURIZE UNTIL LANDING. OBSERVED STRONG ELECTRICAL SMELL. REPLACED OUTFLOW VALVE ACTUATOR.
- [SDR ABXA9900670](https://openairdocs.org/sdr/ABXA9900670), Aug 25, 1999: CUSP WEB. CRACKED. DURING C-CHECK, FOUND CUSP WEB RIGHT SIDE CRACKED AT STATION Y-945. REPLACED CUSP WEB IAW DC9 SRM 51-30-2 AND 51-30-5.
- [SDR ABXA9900669](https://openairdocs.org/sdr/ABXA9900669), Aug 25, 1999: BULKHEAD T-CAP. CORRODED. DURING C-CHECK, FOUND PRESSURE BULKHEAD T-CAP CORRODED AT STATION Y-617. REPAIRED T-CAP IAW ABX REA D953-32890 MR.
- [SDR ABXA9900668](https://openairdocs.org/sdr/ABXA9900668), Aug 24, 1999: WEB. CRACKED. DURING C-CHECK, FOUND CUSP WEB CRACKED AT STATION 617 RIGHT SIDE. REPLACED CUSP WEB IAW DC9 SRM 51-30-1 AND 51-30-5.
- [SDR ABXA9900667](https://openairdocs.org/sdr/ABXA9900667), Aug 24, 1999: LONGERON. CRACKED. DURING C-CHECK, FOUND LONGERON 30 FLANGE CRACKED UNDER AFT END CAP STATION Y-598. REPAIRED LONGERON IAW DC9 SRM 53-02-00.
- [SDR ABXA9900685](https://openairdocs.org/sdr/ABXA9900685), Aug 23, 1999: FRAME. CRACKED. DURING C-CHECK, FOUND FRAME CRACKED AT STATION 1076 AND LONGERON 13 RIGHT. REPLACED SECTION OF FRAME IAW DC9 SRM 53-03.
- [SDR ABXA9900684](https://openairdocs.org/sdr/ABXA9900684), Aug 23, 1999: FITTING. CRACKED. DURING C-CHECK, FOUND FITTING CRACKED BELOW LONGERON 16 LEFT ON THE AFT SIDE OF STATION 1076 FRAME. REPLACED FITTING IAW DC9 SRM 51-30-1 AND 51-30-5.
- [SDR ABXA9900683](https://openairdocs.org/sdr/ABXA9900683), Aug 20, 1999: HINGE. CRACKED. DURING C-CHECK, FOUND LEFT AILERON INBOARD HINGE FITTING CRACKED AT SPAR MOUNT HOLE. REPLACED HINGE IAW DACO DWG 5910515.
- [SDR ABXA9900682](https://openairdocs.org/sdr/ABXA9900682), Aug 20, 1999: BULKHEAD TEE. CRACKED. DURING C-CHECK, FOUND A CRACK INDICATION IN THE AFT PRESSURE BULKHEAD NR 6 TEE CAP. REPAIRED IAW ABX EA 53-120037-006.
- [SDR ABXA9900686](https://openairdocs.org/sdr/ABXA9900686), Aug 19, 1999: FRAME. CRACKED. DURING C-CHECK, FOUND OUTBOARD END OF THE AFT PRESSURE BULKHEAD FRAME CRACKED AT LONGERON 15 LEFT. REPAIRED IAW DC9 SRM 51-30-5 AND 51-20-0.
- [SDR ABXA9900650](https://openairdocs.org/sdr/ABXA9900650), Aug 18, 1999: ACTUATOR. CORRODED. DURING C-CHECK, FOUND LEFT OUTBOARD SPOILER ACTUATOR VALVE BODY EXFOLIATED AND VALVE LINK MOUNT AREA CRACKED. REPLACED ACTUATOR IAW ABX EA 2760D019-001.
- [SDR ABXA9900649](https://openairdocs.org/sdr/ABXA9900649), Aug 18, 1999: WEB. CRACKED. DURING C-CHECK, FOUND CUSP WEB CRACKED FORWARD AND AFT OF FRAME AT STATION 598 RIGHT SIDE. REPLACED CUSP WEB IAW DC9 SRM 51-30-2 AND 51-30-1.
- [SDR ABXA9900648](https://openairdocs.org/sdr/ABXA9900648), Aug 18, 1999: DOUBLER. CORRODED. DURING C-CHECK, FOUND DOUBLER FORWARD AND AFT OF STATION 718 CORRODED. REPLACED DOUBLER IAW DC9 SRM 51-30-5.
- [SDR ABXA9900647](https://openairdocs.org/sdr/ABXA9900647), Aug 17, 1999: LONGERON. CORRODED. DURING C-CHECK, FOUND LONGERON 14 LEFT CORRODED AT STATION 1089. REPLACED LONGERON SECTION IAW DC9 SRM 51-30-2.
- [SDR ABXA9900644](https://openairdocs.org/sdr/ABXA9900644), Aug 16, 1999: WEB. CRACKED. DURING C-CHECK, FOUND CUSP WEB CRACKED FORWARD AND AFT OF FRAME AT STATION 598, LEFT SIDE. REPLACED CUSP WEB IAW DC9 SRM 51-30-1 AND 51-30-2.
- [SDR ABXA9900643](https://openairdocs.org/sdr/ABXA9900643), Aug 13, 1999: PANEL. CORRODED. DURING C-CHECK, FOUND CORROSION ON LEFT LOWER SLANT PANEL CAP. REPAIRED IAW ABX REA D953-32811MR.
- [SDR ABXA9800080](https://openairdocs.org/sdr/ABXA9800080), Feb 16, 1998: DOUBLER. CORRODED. DURING C-CHECK, FOUND CORROSION AT THE AFT END OF THE PRESSURIZATION OUTFLOW VALVE SCOOP. REPLACED DOUBLER IAW DC9 SRM 51-30-2.
- [SDR ABXA9800075](https://openairdocs.org/sdr/ABXA9800075), Feb 11, 1998: SKIN. CRACKED. DURING C-CHECK, FOUND FUSELAGE SKIN BULGED AND CRACKED .125 AT FASTENER HOLE UNDER LONGERON 30 AT STA 897. REPAIRED IAW ABX REA D953-22433-MR.
- [SDR ABXA9800072](https://openairdocs.org/sdr/ABXA9800072), Feb 10, 1998: FRAME. CORRODED. DURING C-CHECK, FOUND EXFOLIATION CORROSION ON THE AFT FLANGE OF FRAME AT STA 851 BETWEEN LONGERON 29L AND 29R.
- [SDR ABXA9800071](https://openairdocs.org/sdr/ABXA9800071), Feb 10, 1998: FITTING. CRACKED. DURING C-CHECK, FOUND VERTICAL SUPPORT CRACKED AT LOWER END AT LONGERON 23R AND STA 560. REPAIRED SUPPORT FITTING IAW DC9 DWG NR K05159.
- [SDR ABXA9800066](https://openairdocs.org/sdr/ABXA9800066), Feb 9, 1998: ANGLE. CRACKED. DURING C-CHECK, FOUND LOWER PYLON TO FUSELAGE ATTACK ANGLE AT LEFT PYLON LEADING EDGE CRACKED. REPAIRED ANGLE IAW DC9 SRM 54-04.
- [SDR ABXA9800065](https://openairdocs.org/sdr/ABXA9800065), Feb 9, 1998: FITTING. CRACKED. DURING C-CHECK, FOUND RIGHT WING OUTBOARD FLAP HINGE FITTING CRACKED. REPLACED FITTING IAW DC9 SRM 51-30-1.

All 71: https://openairdocs.org/deregistered/N945AX-2009-12-23/reports.md

## 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 CHI96LA011](https://openairdocs.org/ntsb/CHI96LA011), Oct 14, 1995: McDonnell Douglas DC-9-31 (N945AX), Cedar Rapids, IA, substantial damage. Probable cause: inadequate installation of a thrust reverser, driver linkage arm pivot bolt and nut, which resulted in the nut and bolt becoming disconnected. A factor relating to the accident was: the…

## FAA accident and incident reports (2)

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.

- [Incident 19980106017349I](https://openairdocs.org/incident/19980106017349I), Jan 6, 1998: Doug DC931 (N945AX), Baltimore, MD. Held in air due to wx. Diverted thru bwi to iad because of emergency fuel status. Landed without further incident.
- [Accident 19951013047669A](https://openairdocs.org/incident/19951013047669A), Oct 13, 1995: Doug DC931 (N945AX), Cedar Rapids, IA, Substantial damage. Left engine thrust reverser door loose. Hit thrust reverser repeatedly. Bang shudder. Landed. Engine mount broken. (-23) no narrative.

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