# N977Z: 1968 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-1](https://openairdocs.org/engine/pratt-whitney-jt8d-1) (registry code 52044) - Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE), [TCDS E2EA](https://openairdocs.org/tcds/E2EA) (OpenAirDocs) - Serial number: 47249 - Year built: 1968 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-jet - Airworthiness: Standard, transport - Airworthiness date: April 18, 1968 - Certificate issued: September 21, 2004 - Last registry action: September 21, 2004 - Mode S code: AD9FE5 - 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/N977Z - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=977Z - Page: https://openairdocs.org/deregistered/N977Z-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 (59, newest 50) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR TWAA0015801](https://openairdocs.org/sdr/TWAA0015801), Oct 4, 2000: SKIN. CRACKED. DURING OP 15 MAINT CHECK THE FUSELAGE HAD A 2 INCH CRACK AND ONE FASTENER MISSING AT STA 332 BETWEEN LONGERON 30 AND 29R. REPAIRED PER SRM 53-04, FIG 44, AT STA - [SDR TWAA0014904](https://openairdocs.org/sdr/TWAA0014904), Sep 5, 2000: FLOOR PANEL. CORRODED. DURING OP 15 MAINT CHECK FOUND ON CABIN FLOOR, CORROSION ON FLOOR PANEL NUMBER 14. NEW FLOOR PANEL MADE PER SSRM 53-00-104, PAGE 201, AND PAINTED. - [SDR TWAA0014903](https://openairdocs.org/sdr/TWAA0014903), Aug 25, 2000: FRAME. MISREPAIRED. DURING OP 15 MAINT CHECK, FOUND IN AFT CABIN RT SIDE, AT STA 980, LONGERON 16R, A FRAME REPAIR NOT APPROVED FOR THIS OPERATION. REPLACED FRAME SECTION PER DRAWI - [SDR TWAA0013606](https://openairdocs.org/sdr/TWAA0013606), Aug 21, 2000: FRAME. CRACKED. DURING OP 15 MAINT CHECK ON RT SIDE OF CABIN, STA 718, FORMER CASTING HAD A CRACK APPROX 4 INCHES LONG ON FWD LOWER I/B FLANGE, CONFIRMED BY NDT. REMOVED AND RE - [SDR TWAA0013605](https://openairdocs.org/sdr/TWAA0013605), Aug 21, 2000: FRAME. CRACKED. DURING OP 15 MAINT CHECK ON RT SIDE OF CABIN, STA 699, A FORMER CASTING HAD A CRACK APPROX 3 INCHES LONG IN AFT LOWER I/B FLANGE, CONFIRMED BY NDT. REMOVED AND - [SDR TWAA0013602](https://openairdocs.org/sdr/TWAA0013602), Aug 21, 2000: FLOOR PANEL. CORRODED. DURING OP 15 MAINT CHECK FOUND CORROSION ON COCKPIT FLOOR PANEL, STA 149 AT RT EDGE LONGERON 18R. REMOVED CORRODED MEMBRANE AND REPLACED WITH 0.032 7075T6 PER S - [SDR TWAA0013604](https://openairdocs.org/sdr/TWAA0013604), Aug 17, 2000: DOOR FRAME. CRACKED. DURING OP 15 MAINT CHECK, ON THE AFT BULKHEAD DOOR, FOUND A CRACK IN DOOR FRAME APPROX 6 INCHES LONG AT LT AFT EDGE, 35 INCHES ABOVE BOTTOM OF DOOR. REPLACED FR - [SDR TWAA0013603](https://openairdocs.org/sdr/TWAA0013603), Aug 14, 2000: FITTING. CRACKED. DURING OP 15 MAINT CHECK, ON AFT BULKHEAD DOOR, CENTER DOOR PRESSURE STOP INTERIOR FITTING WAS CRACKED. REPLACED CRACKED FITTING (P/N 4917851-501), PER SRM 6-70 - [SDR TWAA0013516](https://openairdocs.org/sdr/TWAA0013516), Aug 14, 2000: WEB. CRACKED. DURING OP 15 MAINT CHECK, THE AFT BULKHEAD DOOR, CENTER DOOR PRESSURE STOP INTERIOR WEB WAS CRACKED AT O/B AND I/B CUT OUT AT PRESSURE STOP FITTING. REPAIRED CR - [SDR TWAA0013515](https://openairdocs.org/sdr/TWAA0013515), Aug 11, 2000: FLOOR PANEL. CORRODED. DURING OP 15 MAINT CHECK, FLOOR PANEL NUMBER 11 AT FWD ENTRY DOOR HAD AREAS AROUND SCREW HOLES BLENDED BEYOND LIMIT. PANEL MADE NEW IN SHOP PER SSRM 53-00-104. - [SDR TWAA0013514](https://openairdocs.org/sdr/TWAA0013514), Aug 11, 2000: FLOOR PANEL. CORRODED. DURING OP 15 MAINT CHECK, FOUND CORROSION ON FLOOR PANELS 12 AND 22. MADE NEW PANELS IN SHOP PER SSRM 53-00-104. - [SDR TWAA0013513](https://openairdocs.org/sdr/TWAA0013513), Aug 10, 2000: FLOORBEAM. CORRODED. DURING OP 15 MAINT CHECK HAD CORROSION ON SHORT FLOORBEAM AT STA 200, LBL 44 IN TO LBL 56 INCHES. MECHANICALLY REMOVED CORROSION PER SPM 6-80-01. REMOVED CORROD - [SDR TWAA0016106](https://openairdocs.org/sdr/TWAA0016106), Aug 9, 2000: SEAT TRACK. CORRODED. DURING OP 15 MAINT CHECK, THE FLOOR TRACK BETWEEN FLOOR PANEL 14 AND 15 WAS CORRODED AT LBL 22 INCHES FROM STA 200 TO 229. REPLACED SEAT TRACK PER SRM 53-05 FIG - [SDR TWAA0016105](https://openairdocs.org/sdr/TWAA0016105), Aug 9, 2000: FLOORBEAM. CORRODED. DURING OP 15 MAINT CHECK THE FWD ENTRY AREA HAD CORROSION ON FLOOR SUPPORT BEAM AT STA 200, LBL 0 TO 20 INCHES. FABRICATED AND REPLACED CORRODED PART PER SRM 53 - [SDR TWAA0013512](https://openairdocs.org/sdr/TWAA0013512), Aug 9, 2000: FLOOR SUPPORT. CORRODED. DURING OP 15 MAINT CHECK, FOUND CORROSION ON FLOOR SUPPORT FROM STA 160 TO 200, LBL 44. REMOVED CORRODED PART AND REPLACED PER SRM 53-11-1, FIG 11 SHEET 1 AND 2 - [SDR TWAA0013511](https://openairdocs.org/sdr/TWAA0013511), Aug 7, 2000: SEAT TRACK. CORRODED. DURING OP 15 MAINT CHECK, FOUND CHAIR TRACK CORROSION AT STA 598 TO 639, STA 639 TO 699, 699 TO 756, 756 TO 813, 813 TO 870, AND 870 TO 965 ALL AT RBL 22 INCHES - [SDR TWAA0013510](https://openairdocs.org/sdr/TWAA0013510), Aug 5, 2000: ATTACH ANGLE. CORRODED. DURING OP 15 MAINT CHECK, FOUND CORROSION ON FLOOR ATTACH ANGLE AT AFT PRESSURE BULKHEAD, STA 996 BETWEEN LONGERONS 24L AND 24R. REMOVED CORROSION FROM AREA PER - [SDR TWAA0013509](https://openairdocs.org/sdr/TWAA0013509), Aug 5, 2000: FRAME. CORRODED. DURING OP 15 MAINT CHECK, FOUND RUST ON LOWER AFT END OF F/O SLIDING WINDOW FRAME. REMOVED CORROSION PER DRAWING 5912350. MANUFACTURED NEW PART AND SENT TO SHOP - [SDR TWAA0013508](https://openairdocs.org/sdr/TWAA0013508), Aug 5, 2000: STRAP. CORRODED. DURING OP 15 MAINT CHECK, FOUND CORROSION RUST ON WINDOW FRAME STRAP LOWER AFT END OF CAPT SLIDING WINDOW. REMOVED CORROSION FROM FRAME PER DRAWING 5912350. MAN - [SDR TWAA0013507](https://openairdocs.org/sdr/TWAA0013507), Aug 1, 2000: FLOOR SUPPORT. CORRODED. DURING OP 15 MAINT CHECK, THE FWD ENTRY AREA, THE FLOOR CENTER SUPPORT BEAM HAD CORROSION AROUND SCREW HOLES FROM STA 160 TO 218, BL 0. FABRICATED NEW PART FROM - [SDR TWAA0013506](https://openairdocs.org/sdr/TWAA0013506), Jul 29, 2000: SEAT TRACK. CORRODED. DURING OP 15 MAINT CHECK, FOUND CORROSION ON FLOOR TRACK AT LBL 44 FROM STA 200 TO 229, BETWEEN FLOOR PANEL 15 AND 16. REMOVED DAMAGED TRACK AND REPLACED PER SR - [SDR TWAA0013505](https://openairdocs.org/sdr/TWAA0013505), Jul 29, 2000: SEAT TRACK. CORRODED. DURING OP 15 MAINT CHECK, FOUND MEMBRANE BADLY CORRODED O/B OF NUMBER 1 CHAIR TRACK, STA 218 TO 237. REMOVED DAMAGED SECTION OF WEB. MADE NEW IN SHOP PER SRM 6- - [SDR TWAA0013504](https://openairdocs.org/sdr/TWAA0013504), Jul 28, 2000: WEB. CHAFED. DURING OP 15 MAINT CHECK, FOUND FLOOR MEMBRANE HAD RUBBED THROUGH AT STA 200, BL 0 TO LBL 24 IN. REPAIRED PER SRM 53-01, PAGE 9 FIG 2. - [SDR TWAA0013415](https://openairdocs.org/sdr/TWAA0013415), Jul 28, 2000: LONGERON. CRACKED. DURING OP 15 MAINT CHECK, LONGERON 27L FORMER FOOT WAS CRACKED ON THE FWD END OF STA 579. REMOVED AND REPLACED STRINGER FITTING PER SRM 51-01, PAGE 1 ITEM C. - [SDR TWAA0013414](https://openairdocs.org/sdr/TWAA0013414), Jul 27, 2000: FASTENER. MISSING. DURING OP 15 MAINT CHECK, FOUND FASTENERS MISSING AT LBL 58, STA 598 TO 617. INSTALLED HI-LOKS PER SRM 51-30-05. FASTENERS REMOVED AND REPLACED TO FACILITATE CO - [SDR TWAA0013413](https://openairdocs.org/sdr/TWAA0013413), Jul 27, 2000: WEB. CRACKED. DURING OP 15 MAINT CHECK, FOUND CRACKS IN FLOOR MEMBRANE AT STA 617 TO 615, LBL 54. INSTALLED WEB REPAIR PER SRM 53-01, PAGE 9 FIG 2 SHEET 3. - [SDR TWAA0013412](https://openairdocs.org/sdr/TWAA0013412), Jul 27, 2000: WEB. CORRODED. DURING OP 15 MAINT CHECK, FOUND CORROSION ON FLOOR MEMBRANE AT STA 598 TO 617, LT SIDE OF FUSELAGE. REMOVED CORROSION PER SPM 6-80-1. - [SDR TWAA0013411](https://openairdocs.org/sdr/TWAA0013411), Jul 26, 2000: LONGERON. CRACKED. DURING OP 15 MAINT CHECK, LONGERON 29R FORMER FOOT WAS CRACKED ON THE FWD END, AFT OF STA 579. INSTALLED NEW 29R LONGERON PER SRM 51-30-2 PAGE 1, AND 51-30-5 PA - [SDR TWAA0013410](https://openairdocs.org/sdr/TWAA0013410), Jul 26, 2000: RIB. CRACKED. DURING OP 15 MAINT CHECK ON THE VERTICAL STABILIZER LOWER LEADING EDGE SECTION HAD 3 CRACKED RIBS ON INTERIOR. INSTALLED REPAIR ANGLE DOUBLERS PER SSRM 55-30-10 - [SDR TWAA0013409](https://openairdocs.org/sdr/TWAA0013409), Jul 26, 2000: PLATE. CRACKED. DURING OP 15 MAINT CHECK ON LT FWD PAX DOOR, THE FWD BOTTOM LIGHTENING HOLE, DOOR HINGE SHAFT PLATE HAD A CRACK. REMOVED AND REPLACED BEAM (P/N 99557-503) BY RE - [SDR TWAA0013408](https://openairdocs.org/sdr/TWAA0013408), Jul 26, 2000: PAN. CRACKED. DURING OP 15 MAINT CHECK, THE LT FWD ENTRY DOOR HAD A CRACK IN THE DOOR PAN UNDER THE LOWER FWD DOOR PRESSURE STOP. REMOVED AND REPLACED DOOR PAN (P/N 5914121-5 - [SDR TWAA0013407](https://openairdocs.org/sdr/TWAA0013407), Jul 26, 2000: SKIN. CORRODED. DURING OP 15 MAINT CHECK, FOUND CORROSION ON CENTER WING UPPER SKIN AT STA 689, LBL 25 IN TO LBL 58. CLEANED AND REMOVED CORROSION FROM AREA PER SPM 6-80-1. NON - [SDR TWAA0014902](https://openairdocs.org/sdr/TWAA0014902), Jul 24, 2000: ANGLE. CRACKED. DURING OP 15 MAINT CHECK, FOUND TRANSITION ANGLE FROM FUSELAGE TO VERTICAL STABILIZER, APPROXIMATELY STA 1096, WITH A CRACK AT A SCREW HOLE TO EDGE OF ANGLE, RT - [SDR TWAA0011601](https://openairdocs.org/sdr/TWAA0011601), Jul 17, 2000: SEAT TRACK. CORRODED. DURING OP 16 MAINT CHECK, FOUND CORROSION ON SEAT TRACK AT RBL 22 FROM APPROX STA 200 TO 229, BETWEEN FLOOR PANELS 14 AND 13. REMOVED CORRODED TRACK TO EXISTING - [SDR TWAA0011104](https://openairdocs.org/sdr/TWAA0011104), Jul 10, 2000: KEELBEAM. DAMAGED. DURING OP 15 MAINT CHECK, ON THE LOWER FUSELAGE, LT CANTED KEEL BEAM AREA WAS NECESSARY TO ACCOMPLISH KEEL BEAM WEB SPLICE REPAIR PER SSRM 53-10-110. MODIFIED C - [SDR TWAA0011103](https://openairdocs.org/sdr/TWAA0011103), Jul 10, 2000: KEELBEAM. DAMAGED. DURING OP 15 MAINT CHECK, FOUND ON THE LOWER FUSELAGE, THE RT CANTED KEEL BEAM AREA, NECESSARY TO ANALYZE THE CANTED KEEL BEAM WEB SPLICE REPAIR PER SSRM 53-10- - [SDR TWAA0002401](https://openairdocs.org/sdr/TWAA0002401), Feb 9, 2000: WIRE. WORN. THE EGRESS LIGHTING WAS INOPERATIVE FROM ROW 9 TO THE AFT CABIN. REPLACED FEEDER CABLE (P/N 5854-1) AND FLEX CABLE (P/N 5853-1). CHECK-C 1-14-00 STL. - [SDR TWAA0002209](https://openairdocs.org/sdr/TWAA0002209), Feb 7, 2000: TAIL CONE. EJECTED. ON THE GROUND, THE TAIL CONE WAS INADVERTANTLY DEPLOYED. REINSTALLED TAIL CONE ASSEMBLY PER MC8-5303. OP16 08-24-97 MCI.. - [SDR TWAA0002201](https://openairdocs.org/sdr/TWAA0002201), Feb 7, 2000: POWER SUPPLY. FAILED. F/C EGRESS LIGHTS ON WITH SWITCH IN ARMED POSITION. REPLACED POWER SUPPLY. CHECK-C 01-14-00 STL. - [SDR TWAA9909302](https://openairdocs.org/sdr/TWAA9909302), Jul 5, 1999: VALVE. FAILED. DURING FINAL APPROACH, THE RIGHT ENGINE FLAMED OUT. FOUND FUEL LEAKING AT THE PRESSURIZATION AND DUMP VALVE FITTING. REPLACED THE DUMP VALVE, THE SEAL AND THE F - [SDR TWAA9908901](https://openairdocs.org/sdr/TWAA9908901), Jun 26, 1999: WIRE. WORN. THE FORWARD SECTION OF THE COACH CABIN FLOOR EGRESS LIGHTS WAS INOPERATIVE. FOUND A HOLE IN THE FEEDER CABLE. REPLACED THE FEEDER CABLE FROM THE POWER SUPPLY TO - [SDR TWAA9907708](https://openairdocs.org/sdr/TWAA9907708), May 28, 1999: LONGERON. CRACKED. FOUND LONGERON 5L AT FS 699 CRACKED .25 INCH. FABRICATED AND INSTALLED LONGERON AND SPLICES IN LONGERON 5L AT FS 699 PER SRM 53-02 FIG 18 SHEET 1. CHECK-C 11-13 - [SDR TWAA9907707](https://openairdocs.org/sdr/TWAA9907707), May 28, 1999: LONGERON. CRACKED. FOUND LONGERON 4R AT FS 756 CRACKED .25 INCH. CUT OUT DAMAGED SECTION AND REPAIRED LONGERON PER SRM 53-02 FIG 18 SHEET 1. CHECK-C 11-13-98 STL. - [SDR TWAA9907706](https://openairdocs.org/sdr/TWAA9907706), May 28, 1999: LONGERON. CRACKED. LONGERON 6R AT FS 756 WAS CRACKED .25 INCH. REPAIRED LONGERON 6R AT FS 756 PER SRM 53-02 FIG 18 SHEET 1. CHECK-C 11-13-98 STL. - [SDR TWAA9907703](https://openairdocs.org/sdr/TWAA9907703), May 28, 1999: LONGERON. CRACKED. LONGERON 5L FS 639 WAS CRACKED .25 INCH. REPLACED SECTION ON LONG 5L AND INSTALLED SPLICE SECTION PER SRM 53-02, FIG 18 AND SRO9530128 DRAWING. CHECK-C 11-13-98 - [SDR TWAA9907705](https://openairdocs.org/sdr/TWAA9907705), May 27, 1999: LONGERON. CRACKED. FOUND .25 INCH CRACKS AT LONGERON 6L AT FS 737 AND 756, AND LONGERON 7R AT FS 680. REPAIRED EACH PER SRM 53-02 FIG 18, AND SRO 9530128. CHECK-C 11-13-98 STL. - [SDR TWAA9907704](https://openairdocs.org/sdr/TWAA9907704), May 27, 1999: LONGERON. CRACKED. LONGERON 6L AT FS 658 WAS CRACKED .25 INCH LONG. REPAIRED PER SRM 53-02, FIG 18 AND STANDARD PRACTICES. CHECK-C 11-13-98 STL. - [SDR TWAA9818503](https://openairdocs.org/sdr/TWAA9818503), Nov 11, 1998: PAN. CRACKED. DURING CHECK-C MAINT, THE LT AFT EMERGENCY EXIT DOOR HAD TWO 1 INCH CRACKS IN DOOR PAN IN BOTH CORNERS. REPAIRED PAN PER DC9 SRM 51-00 STANDARD PROCEDURES. - [SDR TWAA9818502](https://openairdocs.org/sdr/TWAA9818502), Nov 11, 1998: PAN. CRACKED. DURING CHECK-C MAINT, FOUND RT FWD EMERGENCY EXIT DOOR WITH TWO 1 INCH PAN CRACKS IN DOOR CORNERS. REPLACED DOOR PAN PER SRM 51-30 STANDARD PRACTICES ON SHOP TI - [SDR TWAA9818501](https://openairdocs.org/sdr/TWAA9818501), Nov 11, 1998: PAN. CRACKED. DURING CHECK-C MAINT, FOUND LT FWD EMERGENCY EXIT DOOR WITH A ONE INCH CRACK IN AFT UPPER CORNER, AND 1 INCH CRACK IN LOWER AFT CORNER. REMOVED AND REPLACED PAN All 59: https://openairdocs.org/deregistered/N977Z-2005-10-19/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 IAD70I0015](https://openairdocs.org/ntsb/IAD70I0015), Aug 15, 1969: Douglas DC-9 (N977Z), Chantilly, VA, incident, minor damage ## FAA accident and incident reports (3) 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 19880604039869I](https://openairdocs.org/incident/19880604039869I), Jun 4, 1988: Doug DC931 (N977Z), St Louis, MO. Smoke reported coming from right engine on takeoff. Returned. Found right engine oil cap not secured. - [Incident 19790310019819I](https://openairdocs.org/incident/19790310019819I), Mar 10, 1979: Doug DC9 (N977Z), St Louis, MO. Passenger interfered with crew and refused to occupy seat with safety belt fastened while transiting unstable air - [Incident 19780919020329I](https://openairdocs.org/incident/19780919020329I), Sep 19, 1978: Doug DC9 (N977Z), St Louis, MO. Aircraft cleared for profile descent crossed intersection at 9500. Charted altitude is 8000 feet. --- 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.