# N985Z: 1970 Mcdonnell Douglas DC-9-31, registration cancelled 2005-10-19 - Type: Cancelled registration (FAA registry, deregistered aircraft) - Cancelled: October 19, 2005 - Exported to: Venezuela - Status when cancelled: Valid registration - Airframe: [Mcdonnell Douglas DC-9-31](https://openairdocs.org/model/mcdonnell-douglas-dc-9-31) (registry code 302206A) - Engine: [Pratt & Whitney JT8D-5](https://openairdocs.org/engine/pratt-whitney-jt8d-5) (registry code 52046) - Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE), [TCDS E2EA](https://openairdocs.org/tcds/E2EA) (OpenAirDocs) - Serial number: 47491 - Year built: 1970 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-jet - Airworthiness: Standard, transport - Airworthiness date: June 24, 1970 - Certificate issued: February 7, 2005 - Last registry action: February 7, 2005 - Mode S code: ADBFF6 - Owner when cancelled: [Alameda Corp Trustee](https://openairdocs.org/faa-owner/ALAMEDA%20CORP%20TRUSTEE) - Location: [San Antonio, TX](https://openairdocs.org/faa-place/TX/San%20Antonio) - Owner type: Corporation - Owner's area on the map: 29.5387° N, 98.4913° W: Placed by OpenAirDocs at the center of ZIP code 78216, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based - The mark today: https://openairdocs.org/aircraft/N985Z - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=985Z - Page: https://openairdocs.org/deregistered/N985Z-2005-10-19 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 (30) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR TWAA0104104](https://openairdocs.org/sdr/TWAA0104104), Mar 5, 2001: LONGERON. CRACKED. DURING CHECK-C MAINT FOUND .25 INCH CRACK AT LONGERON 5L LOWER LEFT LEG, STA 699. REPAIRED PER SRM 53-11-3. INSTALLED LAST TWO BOLTS PER SRM 51-30-1. - [SDR TWAA0009301](https://openairdocs.org/sdr/TWAA0009301), Jun 12, 2000: AFCS. MALFUNCTIONED. CREW REPORTED UNCOMMANDED PITCH CHANGES IN FLIGHT WITH AUTOPILOT NOT ENGAGED. CHECK-C 12-23-99 MCI. - [SDR TWAA0000501](https://openairdocs.org/sdr/TWAA0000501), Jan 9, 2000: ACTUATOR. WORN. AFTER TAKEOFF AT GEAR RETRACTION CAPTAIN NOTED SPARKS COMING FROM CENTER PEDESTAL NEAR HIS RIGHT FOOT. ALSO, NOTICED A BURNING SMELL. FLIGHT RETURNED TO ATL. FO - [SDR TWAA9916006](https://openairdocs.org/sdr/TWAA9916006), Nov 10, 1999: FITTING. CRACKED. DURING OP 16 MAINT CHECK, THE RT WING I/B FLAP HINGE CASTING AREA XRS 164, I/B LOWER HOLE IN REAR SPAR HAD 2 CRACKS APPROXIMATELY 1.25 AND .5 INCH LONG. CRACKS - [SDR TWAA9916005](https://openairdocs.org/sdr/TWAA9916005), Nov 10, 1999: FITTING. CRACKED. DURING OP 16 MAINT CHECK ON RT WING THE I/B FLAP HINGE CASTING AREA XRS 164 HAD LOWER O/B HOLE CRACKED AT 12 O'CLOCK POSITION. CRACK WAS STOP DRILLED AND NDT CH - [SDR TWAA9916004](https://openairdocs.org/sdr/TWAA9916004), Nov 5, 1999: TIE. CORRODED. DURING OP 16 MAINT CHECK, FOUND CORRODED FORMER TIE AT STA 200, FORMER TO LONGERON 18R. INSTALLED NEW FORMER TIE FITTING AT STA 200 PER SPM 6-70-01. - [SDR TWAA9916003](https://openairdocs.org/sdr/TWAA9916003), Nov 5, 1999: ANGLE. CORRODED. DURING OP 16 MAINT CHECK, THE FWD SERVICE DOOR CUSP ANGLE WAS CORRODED BETWEEN STA 190 TO 220. INSTALLED NEW SECTION OF CUSP ANGLE FROM STA 184 TO FACTORY SPLIC - [SDR TWAA9915403](https://openairdocs.org/sdr/TWAA9915403), Nov 1, 1999: SPAR. CRACKED. DURING OP 16 MAINT CHECK, FOUND RT WING REAR SPAR OTBD FLAP MOUNT HOLES AT XRS 353 HAD THE LOWER OTBD HOLE CRACKED 1.125 INCH LONG. REAR SPAR REPAIRED AT XRS 35 - [SDR TWAA9819006](https://openairdocs.org/sdr/TWAA9819006), Nov 20, 1998: ANGLE. CRACKED. DURING CHECK-C MAINT, FOUND DORSAL FIN TO FUSELAGE ATTACH ANGLE CRACKED ON RT SIDE AT STA 1097, APPROX 1.5 INCH LONG IN RADIUS. CRACK WAS STOP DRILLED AND CRACK - [SDR TWAA9818701](https://openairdocs.org/sdr/TWAA9818701), Nov 19, 1998: ANGLE. CRACKED. DURING CHECK-C MAINT, FOUND TAIL TO FUSELAGE ANGLE IN DORSAL FIN CRACKED FROM SCREW HOLE TO EDGE, ON RT SIDE AT STA 1081. REMOVED CRACKED ANGLE AND REPLACED WIT - [SDR TWAA9818605](https://openairdocs.org/sdr/TWAA9818605), Nov 16, 1998: ANGLE. CRACKED. DURING CHECK-C MAINT, FOUND FUESLAGE TO TAIL ATTACH ANGLE CRACKED LT SIDE AT STA 1097. ONE CRACK 2 INCHES LONG IN RADIUS AND ONE CRACK FROM SCREW HOLE TO EDGE. - [SDR TWAA9818604](https://openairdocs.org/sdr/TWAA9818604), Nov 13, 1998: CASTING. CRACKED. DURING CHECK-C MAINT, FOUND FORMER TIE CASTING CRACKED AT STA 1087, BETWEEN LONGERON 1R AND 2R. DRILLED AND INSTALLED NEW CASTING USING HLT 436 TENSION HI-LOKS - [SDR TWAA9818603](https://openairdocs.org/sdr/TWAA9818603), Nov 13, 1998: ANGLE. CRACKED. DURING CHECK-C MAINT, FOUND IN AFT FUSELAGE AT STA 1087, A 1.5 INCH CRACK AND SHEARED RIVETS BETWEEN LONGERON 2R AND 3R, O/B OF BATH TUB FITTING ON TIE ANGLE. R - [SDR TWAA9818602](https://openairdocs.org/sdr/TWAA9818602), Nov 13, 1998: FORMER. CRACKED. DURING CHECK-C MAINT, FOUND FORMER FOOT CRACKED AT STA 1087, STR 3L. REMOVED CRACKED FOOT AND INSTALLED NEW ONE PER SPECIAL PROCESSES MANUAL 6-70-01, PAGE 2 ITE - [SDR TWAA9818211](https://openairdocs.org/sdr/TWAA9818211), Nov 10, 1998: FORMER. CRACKED. DURING CHECK-C MAINT, FOUND FORMER FOOT CRACKED AT STA 1087, BETWEEN STRINGER 1 AND 3R. REMOVED BROKEN FORMER FOOT AND MADE NEW ONE OUT OF 7075T6, AND INSTALLED - [SDR TWAA9817901](https://openairdocs.org/sdr/TWAA9817901), Nov 5, 1998: SKIN. CRACKED. DURING CHECK-C, MAINT FOUND FUSELAGE SKIN CRACKED AT AFT HINGE CUTOUT FOR THE NOSE GEAR RT STRUT DOOR. INSTALLED DOUBLER OF 0.063 7075T6 WITH AD-5 RIVETS. AREA - [SDR TWAA9711202](https://openairdocs.org/sdr/TWAA9711202), Sep 15, 1997: LIGHT. INOPERATIVE. TPA - FLT 204 - DURING ROUTINE MAINTENANCE, A PORTABLE FLASHLIGHT WOULD NOT ILLUMINATE. REMOVED AND REPLACED THE FLASHLIGHT, MFG PN 10-0119-1, MANUFACTURED BY G - [SDR TWAA9614803](https://openairdocs.org/sdr/TWAA9614803), Nov 29, 1996: RETRACT MECH. LACK OF LUBE. JFK - FLT 214 - AFTER TAKEOFF, LANDING GEAR SELECTOR WAS CYCLED TO GET LANDING GEAR RETRACTED AND ON LANDING GEAR EXTENSION DURING APPROACH, LANDING GEAR WAS SL - [SDR 96ZZZM1444](https://openairdocs.org/sdr/96ZZZM1444), Oct 2, 1996: FUEL PUMP. FAILED. RSW - DURING CLIMB-OUT NR 2 ENGINE, S/N 2131, SPOOLED DOWN AND AIRCRAFT RETURNED FROM FLIGHT. REMOVED AND REPLACED ENGINE DRIVEN FUEL PUMP, MFG P/N 373401-26. O - [SDR 96ZZZM1136](https://openairdocs.org/sdr/96ZZZM1136), Jun 22, 1996: POWER SUPPLY. WEAK. STL - DURING CRUISE, EMERGENCY LIGHTS ILLUMINATED INTERMITTENTLY. FOUND ALL EMERGENCY LIGHT BATTERY POWER SUPPLY WEAK, MFG P/N 5822-2. REPLACED ALL BATTERY POWE - [SDR 96ZZZM1066](https://openairdocs.org/sdr/96ZZZM1066), Jun 4, 1996: KEEL BEAM. CRACKED. STL - DURING OP-15, FOUND .5 INCH CRACK IN WHEEL WELL, AFT END OF KEEL BEAM AT GEAR DOOR PIN HINGE LOCKPLATE, RLMG. REPAIRED PER SRM 53-04, FIGURE 42, SHEET 3. - [SDR 96ZZZM1065](https://openairdocs.org/sdr/96ZZZM1065), May 21, 1996: LONGERON. CRACKED. STL - DURING OP-15, FOUND A FOUR INCH CRACK IN LONGERON 30, STATION 410 TO 412. REPLACED LONGERON 30 PER SRM 53-02, FIGURE 15. (M) - [SDR 96ZZZM1070](https://openairdocs.org/sdr/96ZZZM1070), May 20, 1996: LONGERON. CRACKED. STL - DURING OP-15, FOUND LONGERON 2R CRACKED, STATION 718. REPAIRED PER SRM 52-02, FIGURE 2. (M) - [SDR 95ZZZX4258](https://openairdocs.org/sdr/95ZZZX4258), Jul 31, 1995: FUEL PUMP. MALFUNCTIONED. STL - FLT 340 - DURING CLIMB, SHUT DOWN NR 1 ENGINE, SN 2143, DUE TO ENGINE SURGED AND THROTTLE WOULD NOT CONTROL ENGINE POWER. REPLACED ENGINE FUEL PUMP, MFG P - [SDR 95ZZZX3401](https://openairdocs.org/sdr/95ZZZX3401), Jun 14, 1995: IND WIRE. OPEN. ORF - FLT 694 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NOSE GEAR GREEN, DOWN, AND LOCKED LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR. FOUND WIRE, G21 - [SDR 95ZZZX3184](https://openairdocs.org/sdr/95ZZZX3184), Jun 14, 1995: WIRE. FAILED. ORF - FLT 694 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NOSE GEAR GREEN, DOWN, AND LOCKED LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR. FOUND WIRE, C21 - [SDR 95ZZZX3180](https://openairdocs.org/sdr/95ZZZX3180), Jun 11, 1995: RELAY. MALFUNCTIONED. MCI - FLT 117 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NLG GREEN LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR AND GREEN LIGHT CAME ON. REPLACED LANDIN - [SDR 95ZZZX3181](https://openairdocs.org/sdr/95ZZZX3181), Jun 10, 1995: DOWNLOCK SWITCH. FAILED. STL - FLT 631 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NLG GREEN LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR AND SWAPPED LIGHT BULBS. ON SECOND APPRO - [SDR 95ZZZW642](https://openairdocs.org/sdr/95ZZZW642), Feb 24, 1995: JAMB. CORRODED. STL - DURING C-CHECK, CORROSION ON AFT CARGO BIN LOWER DOOR JAMB INNER PANEL, FROM FORWARD LOWER CORNER TO AFT SIDE. REPAIRED PER SRM 53-05, FIGURE 14. - [SDR 95ZZZW594](https://openairdocs.org/sdr/95ZZZW594), Feb 24, 1995: JAMB. CORRODED. STL - DURING C-CHECK, FOUND CORROSION ON AFT CARGO BIN LOWER DOOR JAMB INNER PANEL, FROM FORWARD LOWER CORNER TO AFT SIDE. REPAIRED PER SRM 53-05, FIGURE 14. ## 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 19871224076789I](https://openairdocs.org/incident/19871224076789I), Dec 24, 1987: Doug DC931 (N985Z), St Louis, MO. Unable to control cabin pressure on climbout. Returned to airport. Found a failed duct clamp at a water separator. - [Incident 19851104059259I](https://openairdocs.org/incident/19851104059259I), Nov 4, 1985: Doug DC931 (N985Z), St Louis, MO, Minor damage. Mechanic found aft lavatory compartment filled with smoke. Used halon on trash receptacle and burned paper towel. --- 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.