# N491AA: 1989 Mcdonnell Douglas DC-9-82(MD-82), registration cancelled 2019-03-02

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 2, 2019
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Mcdonnell Douglas DC-9-82(MD-82)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82-md-82) (registry code 3022082)
- 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: 49684
- Year built: 1989
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-jet
- Airworthiness: Standard, transport
- Airworthiness date: February 17, 1989
- Certificate issued: October 23, 2015
- Last registry action: October 23, 2015
- Mode S code: A613D0
- Owner when cancelled: [Oklahoma State University](https://openairdocs.org/faa-owner/OKLAHOMA%20STATE%20UNIVERSITY)
- Location: [Stillwater, OK](https://openairdocs.org/faa-place/OK/Stillwater)
- Owner type: Government
- Owner's area on the map: 36.1253° N, 97.0797° W: Placed by OpenAirDocs at the center of ZIP code 74078, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N491AA
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=491AA
- Page: https://openairdocs.org/deregistered/N491AA-2019-03-02

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-9-82(MD-82): https://openairdocs.org/model/mcdonnell-douglas-dc-9-82-md-82.md

## Service difficulty reports (78, newest 50)

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

- [SDR AALA20150830004](https://openairdocs.org/sdr/AALA20150830004), Aug 30, 2015: SWITCH. STUCK. DURING APPROACH, THE NOSE LANDING GEAR INDICATION REMAINED RED AFTER GEAR EXTENSION. FOUND THE NOSE GEAR POSITION LIGHT SWITCH STUCK IN AIR MODE. R & R SWITCH S
- [SDR AALA20150820001](https://openairdocs.org/sdr/AALA20150820001), Aug 19, 2015: DUCT. LEAKING. AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT OVERWEIGHT. DURING CLIMB TAIL COMPARTMENT OVERHEAT LIGHT ILLUMINATED. ACCOMPLISHED CARS 0930 & 26-96-11.
- [SDR AALA20150405004](https://openairdocs.org/sdr/AALA20150405004), Apr 5, 2015: BULB. INOPERATIVE. DURING APPROACH RT MLG INDICATOR SHOWED NO LIGHT. EMERGENCY DECLARED, PERFORMED MISSED APPROACH & LANDED WITHOUT INCIDENT. R & R LAMP FOR INDICATOR.
- [SDR AALA20150224002](https://openairdocs.org/sdr/AALA20150224002), Feb 23, 2015: BATTERY PACK. DISCHARGED. OVERHEAD EMER LIGHTS AT ROWS 29 - 32 WON’T TEST. R & R EMER LIGHT BATTERY PACK FOR ROWS 29 - 32. PERFORMED OPERATIONAL CHECK IAW AMM 33-53-00. SYS CHECKED NORMA
- [SDR AALA20150224001](https://openairdocs.org/sdr/AALA20150224001), Feb 23, 2015: BATTERY PACK. DISCHARGED. EMERGENCY LIGHTS OVER TAIL CONE WON’T TEST. R & R EMER LIGHT BATTERY PACK FOR TAIL CONE. PERFORMED OPERATIONAL CHECK IAW AMM 33-53-00. SYS CHECKED NORMAL.
- [SDR AALA20141204004](https://openairdocs.org/sdr/AALA20141204004), Dec 4, 2014: SEAL. CUT. RETURNED, EMER DECLARED, LANDING UNEVENTFUL & ACFT WAS OVERWEIGHT. NLG WOULD NOT RETRACT AFTER TAKEOFF. FOUND NLG STRUT FLAT. INSPECTION OF NLG FOUND THE SHRADE
- [SDR AALA20141009005](https://openairdocs.org/sdr/AALA20141009005), Oct 6, 2014: TIRE. SEPARATED. DAMAGE TO RT INBD FLAP MIDDLE DUE TO TIRE SEPARATION. DRILLED & INSTALLED DOUBLER ON RT INBD FLAP MIDDLE IAW SRM 57-01-00-001.
- [SDR AALA20140902010](https://openairdocs.org/sdr/AALA20140902010), Sep 2, 2014: RADOME. CRACKED. RADOME & FAIRING AT STATION YV280 TRAILING TIP OF AFT END OF VERTICAL HAS DAMAGE TO RADOME MOUNTING RING. ACCOMPLISHED REPAIR IAW EA MD80-55-036387.
- [SDR AALA20140902005](https://openairdocs.org/sdr/AALA20140902005), Sep 2, 2014: SKIN. CORRODED. DENT & CORROSION FOUND ON SKIN AT STATION 674 BETWEEN LONGERONS 29 & 30 LT. CORROSION & DENT CUT OUT. INSTALLED FILLER, DOUBLER, TRIPLER & FINGER DOUBLER IAW EA
- [SDR AALA20140902004](https://openairdocs.org/sdr/AALA20140902004), Sep 2, 2014: SKIN. CORRODED. CORROSION FOUND ON SKIN BETWEEN LONGERON 29 & 30 RT & STATIONS 636 TO 655. CUT OUT CORROSION & INSTALLED FILLER, DOUBLER, TRIPLER & FINGER DOUBLER IAW EA MD80-5
- [SDR AALA20140313006](https://openairdocs.org/sdr/AALA20140313006), Mar 8, 2014: FORMER. CRACKED. RIGHT HAND WING LE NR 4 SLAT TRACK INBD FORMER CRACKED. INSTALLED DOUBLER IAW EA MD80-57-033945.
- [SDR AALA20131216003](https://openairdocs.org/sdr/AALA20131216003), Dec 15, 2013: FLAP. CRACKED. FOUND 4 INCH CRACK ON RT HAND TE FLAP APPROXIMATELY 18 INCHES OTBD OF FLAP CANTILEVER. ACCOMPLISHED INTERIM REPAIR TO RT HAND TE IAW FEA AUTH 16095.
- [SDR AALA20120926006](https://openairdocs.org/sdr/AALA20120926006), Sep 26, 2012: SKIN. DAMAGED. PREVIOUSLY BLENDED AREA ON FUSELAGE AT STATION 229 AND LONGERON 18 LEFT. INSTALLED DOUBLER REPAIR PER SRM 53-04-05 FIGURE 5 AND EA MD80-53-026234.
- [SDR AALA20120919023](https://openairdocs.org/sdr/AALA20120919023), Sep 19, 2012: BEAM. CORRODED. MID CARGO THRESHOLD DOOR BEAM CORRODED. INSTALLED DOUBLER PER AARD 53-10-00-3.
- [SDR AALA20120914016](https://openairdocs.org/sdr/AALA20120914016), Sep 14, 2012: BEAM. CORRODED. CARGO AFT CX CORROSION ALONG DOOR CUTOUT BEAM UNDER DOUBLER STATION 1155 TO 1212. ACCOMPLISHED NESTED ANGLE REPAIR PER AARD 53-10-00-3 AND EA MD80-53-026045.
- [SDR AALA20120914014](https://openairdocs.org/sdr/AALA20120914014), Sep 14, 2012: LONGERON. CRACKED. TWO EACH CRACKS AT LONGERON 3 LEFT, INBOARD AND OUTBOARD SIDE, STATION 160. INSTALLED LONGERON SPLICE REPAIR PER SRM 53-02-00 FIGURE 18.
- [SDR AALA20120914013](https://openairdocs.org/sdr/AALA20120914013), Sep 14, 2012: CUSP WEB. CORRODED. LEFT CUSP CORRODED AT STATION 583 OUTBOARD NUMBER 1 SEAT TRACK. INSTALLED DOUBLER PER AARD 53-20-00-16.
- [SDR AALA20120914012](https://openairdocs.org/sdr/AALA20120914012), Sep 14, 2012: CUSP WEB. CRACKED. RIGHT CUSP SHEET IS CRACKED AT STATIONS 810 TO 812 RIGHT BUTTLINES 58 TO 60. INSTALLED DOUBLER PER AARD 53-20-00-16.
- [SDR AALA20120914011](https://openairdocs.org/sdr/AALA20120914011), Sep 14, 2012: CUSP WEB. CORRODED. FORWARD SERVICE DOOR LOWER AFT JAM SUB FLOOR CORRODED AT STATIONS 200 TO 204. INSTALLED DOUBLER PER AARD 53-20-00-16.
- [SDR AALA20120914010](https://openairdocs.org/sdr/AALA20120914010), Sep 14, 2012: CUSP WEB. DAMAGED. FLOORBOARD MOUNT HOLE IN THE CENTER OF SUB FLOOR 10 INCHES INBOARD OF AFT SERVICE DOOR LOWER JAM AT APPROXIMATE STATION 1155 DAMAGED. INSTALLED DOUBLER PER AARD
- [SDR AALA20120910003](https://openairdocs.org/sdr/AALA20120910003), Sep 10, 2012: SUPPORT. CORRODED. CORROSION BELOW FORWARD ENTRY DOOR THRESHOLD SUPPORT ON SUBFLOOR AT STATION 164. INSTALLED DOUBLER PER AARD 53-20-00-16.
- [SDR AALA20120907035](https://openairdocs.org/sdr/AALA20120907035), Sep 7, 2012: SEAT TRACK. GOUGED. CABIN HAS A GOUGE IN NUMBER 3 SEAT TRACK AT STATION 568. INSTALLED PLUG IN SEAT TRACK 3 AT STATION 568 PER AARD 53-20-00-10.
- [SDR AALA20120907033](https://openairdocs.org/sdr/AALA20120907033), Sep 7, 2012: SKIN. DENTED. DENT AND SCRATCH LN FUSELAGE SKIN BELOW AND AFT OF FORWARD LAVATORY SERVICE AREA, STATION 294, LONGERON 24 LEFT. INSTALLED REPAIR DOUBLER PER SRM 53-04-0 FIGURE
- [SDR AALA20120906016](https://openairdocs.org/sdr/AALA20120906016), Sep 6, 2012: FITTING. CRACKED. STATION 927 AND BELOW SEAT TRACK NUMBER 5 HAS VERTICAL ANGLE CRACKED AT LOWER END. REPLACED DAMAGED VERTICAL FITTING UNDER SEAT TRACK NUMBER 5, STATION 927 PER 
- [SDR AALA20120906014](https://openairdocs.org/sdr/AALA20120906014), Sep 6, 2012: PAN. CRACKED. WINDOW AT STATION 1070 LEFT SIDE: WINDOW RING PAN HAS CRACK AT FORWARD LOWER FASTENER AND AT RADIUS. INSTALLED DOUBLER PER AARD 53-10-00-25.
- [SDR AALA20120906013](https://openairdocs.org/sdr/AALA20120906013), Sep 6, 2012: PAN. CRACKED. WINDOW AT STATION 1070 RIGHT SIDE: WINDOW RING PAN HAS CRACK AFT UPPER AT AFT MOST FASTENER. INSTALLED DOUBLER PER AARD 53-10-00-25.
- [SDR AALA20120906012](https://openairdocs.org/sdr/AALA20120906012), Sep 6, 2012: PAN. CRACKED. WINDOW AT STATION 1070 RIGHT SIDE: WINDOW RING PAN HAS CRACK BOTTOM FORWARD AT FORWARD MOST FASTENER. INSTALLED DOUBLER PER AARD 53-10-00-25.
- [SDR AALA20120906011](https://openairdocs.org/sdr/AALA20120906011), Sep 6, 2012: PAN. CRACKED. WINDOW AT STATION 1070 LEFT SIDE: WINDOW RING PAN HAS CRACK AFT UPPER AT AFT MOST FASTENER. INSTALLED DOUBLER PER AARD 53-10-00-25.
- [SDR AALA20120824005](https://openairdocs.org/sdr/AALA20120824005), Aug 24, 2012: ENGINE. FAILED. BHM - INFLIGHT DFW-CLT CREW REPORTED LEFT ENGINE OIL PRESSURE LOW AND OIL QUANTITY WENT TO ZERO. CAPTAIN FOLLOWED QRH PROCEDURES AND SHUT DOWN LEFT ENGINE (SING
- [SDR AALA20120413009](https://openairdocs.org/sdr/AALA20120413009), Apr 12, 2012: LIGHT. MALFUNCTIONED. FORWARD EMERGENCY LIGHT AT L1 DOOR IS VERY DIM. REPLACED LIGHT ASSEMBLY AT L1 DOOR. OPS CHECKED NORMAL.
- [SDR AALA20120413008](https://openairdocs.org/sdr/AALA20120413008), Apr 12, 2012: CHARGER. INOPERATIVE. TAIL COMPARTMENT EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY CHARGER IN AFT RIGHT LAVATORY. OPS CHECKED NORMAL.
- [SDR AALA20120413002](https://openairdocs.org/sdr/AALA20120413002), Apr 12, 2012: CHARGER. INOPERATIVE. TAIL COMPARTMENT LIGHTS INOPERATIVE. REPLACED AND SECURED BATTERY CHARGER. OPS CHECKED NORMAL.
- [SDR AALA20120413001](https://openairdocs.org/sdr/AALA20120413001), Apr 12, 2012: CHARGER. MALFUNCTIONED. L1 DOOR EMERGENCY LIGHT INOPERATIVE. REPLACED AND SECURED BATTERY CHARGER. OPS CHECKED NORMAL.
- [SDR AALA20100221TUL07](https://openairdocs.org/sdr/AALA20100221TUL07), Feb 21, 2010: DOOR FRAME. CORRODED. CORROSION ON FORWARD CARGO DOOR PAN STATION 370 TO 408 HORIZONTAL LEG OUTBOARD EDGE AND FORWARD VERTICAL LEG. INSTALLED NEW CARGO DOOR PAN SPLICE STATION 370 TO
- [SDR AALA20100219TUL02](https://openairdocs.org/sdr/AALA20100219TUL02), Feb 19, 2010: INTERCOSTAL. CRACKED. INTERCOSTAL IN CEILING BETWEEN STATIONS 1287 AND 1309 AT BUTTLINE 0 CRACKED AT AFT RADIUS. REMOVED AND REPLACED INTERCOSTAL PER SRM 51-01-00.
- [SDR AALA20100218TUL01](https://openairdocs.org/sdr/AALA20100218TUL01), Feb 18, 2010: CASTING. CRACKED. LEFT WING FORWARD INBOARD CORNER OF GROUND SPOILER ACTUATOR CASTING CRACKED. REMOVED AND REPLACED CASTING PER SRM 57-01-00.
- [SDR AALA20091115TUL01](https://openairdocs.org/sdr/AALA20091115TUL01), Nov 14, 2009: SHROUD. BROKEN. EMERGENCY LIGHT AT SEAT ROW 9 HAS DAMAGED SHROUD. REPLACED TWO LAMPS, LENS AND SHROUD AT ROW 9.
- [SDR AALA2009013100421](https://openairdocs.org/sdr/AALA2009013100421), Jan 31, 2009: BATTERY PACK. NOT SEATED. LGA- TAIL COMPARTMENT EMERGENCY LIGHTS INOPERATIVE. CLEANED AND RECONNECTED BATTERY PACK.
- [SDR AALA2009013100420](https://openairdocs.org/sdr/AALA2009013100420), Jan 31, 2009: BATTERY PACK. DISCHARGED. LGA - AFT STAIRS LEFT SIDEWALL EMERGENCY LIGHTS INOPERATIVE. REPLACED EMERGENCY PATH LIGHTING BATTERY PACK.
- [SDR AALA2009013100419](https://openairdocs.org/sdr/AALA2009013100419), Jan 31, 2009: BATTERY PACK. DISCHARGED. LGA - SEAT MOUNTED ESCAPE PATH LIGHTING FROM ROW 20D TO 32D INOPERATIVE. REPLACED BATTERY PACK.
- [SDR AALA200802195](https://openairdocs.org/sdr/AALA200802195), Aug 26, 2008: BATTERY PACK. DISCHARGED. LGA EMERGENCY LIGHTS AT OVERHEAD FIRST CLASS CABIN INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY LIGHTS AT OVERHEAD FIRST CLASS CABIN. SYSTEM GROUND CHECKED 
- [SDR AALA200800997](https://openairdocs.org/sdr/AALA200800997), Apr 17, 2008: BATTERY PACK. DISCHARGED. LGA - EMERGENCY LIGHTS AT OVERHEAD SEAT ROWS 24 TO 26 INOPERATIVE. REPLACED BATTERY PACK AT B5 1 FOR EMERGENCY LIGHTS AT OVERHEAD SEAT ROWS 24 TO 26. SYSTEM GRO
- [SDR AALA20060484](https://openairdocs.org/sdr/AALA20060484), Jul 22, 2006: BATTERY PACK. DISCHARGED. DFW - EXIT EMERGENCY LIGHT AT AFT SERVICE DOOR INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY EXIT LIGHTS AT AFT SERVICE DOOR. SYSTEM GROUND CHECKED NORMAL OP
- [SDR AALA20060482](https://openairdocs.org/sdr/AALA20060482), Jul 22, 2006: LENS. MISSING. DFW - FORWARD EMERGENCY LIGHT LENS MISSING FROM SEAT 7D. REPLACED MISSING EMERGENCY LIGHT LENS AT SEAT 7D. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20060481](https://openairdocs.org/sdr/AALA20060481), Jul 22, 2006: WIRE. DAMAGED. DFW - SIDEWALL EMERGENCY EXIT LIGHTS IN AFT STAIRWAY INOPERATIVE. REPAIRED WIRE AT STATION 1462 FOR INOPERATIVE SIDEWALL EMERGENCY EXIT LIGHTS IN AFT STAIRWAY. 
- [SDR AALA20060483](https://openairdocs.org/sdr/AALA20060483), Jul 22, 2006: BATTERY PACK. DISCHARGED. EMERGENCY CEILING LIGHTS FROM ROWS 28 TO 30 INOPERATIVE. REPLACED BATTERY PACK IN OVERHEAD BIN ABOVE ROW 29 FOR INOPERATIVE EMERGENCY CEILING LIGHTS FROM ROWS 2
- [SDR AALA20060076](https://openairdocs.org/sdr/AALA20060076), Feb 2, 2006: BATTERY PACK. INOPERATIVE. LGA - EMERGENCY LIGHT IN FORWARD CABIN INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY LIGHT IN FORWARD CABIN. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20040822](https://openairdocs.org/sdr/AALA20040822), Aug 9, 2004: BATTERY PACK. INOPERATIVE. DFW - AFT OVERWING EMERGENCY EXIT LIGHTS INOPERATIVE. REPLACED BATTERY PACK IN OVERHEAD BIN ABOVE SEAT 20D FOR AFT OVERWING EMERGENCY EXIT LIGHTS. SYSTEM GROUND
- [SDR AALA20040824](https://openairdocs.org/sdr/AALA20040824), Aug 9, 2004: BATTERY PACK. INOPERATIVE. DFW - FORWARD OVERWING EMERGENCY EXIT LIGHT INOPERATIVE. REPLACED BATTERY PACK IN OVERHEAD BIN ABOVE SEAT 20D FOR FORWARD OVERWING EMERGENCY EXIT LIGHT. SYSTEM 
- [SDR AALA20040004](https://openairdocs.org/sdr/AALA20040004), Jan 1, 2004: BATTERY PACK. DISCHARGED. EMERGENCY LIGHTS ABOVE AFT TAIL CONE ENTRANCE INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY LIGHTS ABOVE AFT TAIL CONE ENTRANCE. SYSTEM GROUND CHECKED NORMAL

All 78: https://openairdocs.org/deregistered/N491AA-2019-03-02/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 FTW91LA137](https://openairdocs.org/ntsb/FTW91LA137), Jul 27, 1991: McDonnell Douglas MD-80 (N491AA), Dfw Airport, TX, minor damage. Probable cause: THE CAPTAIN OF THE OTHER AIRCRAFT MISJUDGED CLEARANCE BETWEEN HIS AIRCRAFT AND THE STANDING COMMUTER AIRPLANE. A FACTOR WAS THE FAILURE BY THE SECOND PILOT OF THE OTHER AIRPLANE TO IDENTIFY A…

## 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.

- [Accident 19910727063181A](https://openairdocs.org/incident/19910727063181A), Jul 27, 1991: Doug DC982 (N491AA), Dallas-Ft Worth, TX, Minor damage. Taxiing for takeoff wing tip struck tail of standing N405AE. Pilots reported busy in cockpit. Did not see N405AE.
- [Incident 19910424016659I](https://openairdocs.org/incident/19910424016659I), Apr 24, 1991: Doug DC982 (N491AA), Syracuse, NY, Substantial damage. A tow tractor struck aircraft which was parked at the gate.

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