# N979Z: 1969 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: 47343 - Year built: 1969 - Type of aircraft: Fixed wing multi engine - Engine type: Turbo-jet - Airworthiness: Standard, transport - Airworthiness date: February 21, 1969 - Certificate issued: September 21, 2004 - Last registry action: September 21, 2004 - Mode S code: ADA753 - 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/N979Z - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=979Z - Page: https://openairdocs.org/deregistered/N979Z-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 (48) Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR ZW0A0107802](https://openairdocs.org/sdr/ZW0A0107802), Aug 30, 2001: GYRO. FAILED. ON TAKEOFF BOTH COMPASS CARDS SPUN RAPIDLY. NO FLAGS PRESENT. BOTH SYSTEMS DISAGREED WITH THE STANDBY/WET COMPASS. RETURNED TO STL. REPLACED THE NR 1 DG PN 2588 - [SDR TWAA0010704](https://openairdocs.org/sdr/TWAA0010704), Jul 6, 2000: VALVE. WORN. LOST CABIN PRESSURIZATION AND PSU OXYGEN MASKS DEPLOYED. REPLACED THE RT FLOW CONTROL VALVE. CHECK-C 10-4-99 MCI. ---CLOSED--- - [SDR TWAA9914004](https://openairdocs.org/sdr/TWAA9914004), Sep 27, 1999: STRINGER. CRACKED. DURING OP 16 MAINT CHECK FOUND CABIN STRINGER 4L CRACKED AT FORMER STA 200. REPLACED STRINGER FROM APPROX STA 230 TO 170. INSTALLED REPAIR SPLICE AT STA 170 PER - [SDR TWAA9911906](https://openairdocs.org/sdr/TWAA9911906), Aug 22, 1999: SEAT TRACK. CORRODED. DURING OP 16 MAINT CHECK, CHAIR TRACK NUMBER 4 WAS CORRODED AT FLANGE, STA 857 THRU 965. NEW TRACK INSTALLED PER SPM 6-70-01. SPLICE PER SRM 53-05, FIG 4F SHEET - [SDR TWAA9911903](https://openairdocs.org/sdr/TWAA9911903), Aug 19, 1999: BULKHEAD. CRACKED. DURING OP 16 MAINT CHECK, THE RT BULKHEAD WAS CRACKED 3 INCHES LONG, LOCATED 1 INCH ABOVE FLOOR AND 5 INCHES FROM SIDEWALL ON FWD SIDE, STA 965. REMOVED AND REP - [SDR TWAA9911902](https://openairdocs.org/sdr/TWAA9911902), Aug 19, 1999: BULKHEAD ANGLE. CRACKED. DURING OP 16 MAINT CHECK, FOUND AFT PRESS BULKHEAD, FWD SIDE DIAGONAL BRACE ATTACH ANGLE ON PRESSURE BULKHEAD, STA 996 AT UPPER END, CRACKED BETWEEN LONGERON 3L - [SDR TWAA9911905](https://openairdocs.org/sdr/TWAA9911905), Aug 18, 1999: LONGERON. CORRODED. DURING OP 16 MAINT CHECK, FOUND CORROSION IN CABIN AT LONGERON 18R, APPROX STA 946 ON WEB. REPLACED WEB PER SPM 6-70-01, ITEM 4 B-1. - [SDR TWAA9911904](https://openairdocs.org/sdr/TWAA9911904), Aug 18, 1999: LONGERON. CORRODED. DURING OP 16 MAINT CHECK, FOUND IN CABIN THERE WAS CORROSION ON LONGERON 18 WEB, STA 938R. REPLACED WEB PER SRM 6-70-01, ITEM 4 B-1. - [SDR TWAA9911211](https://openairdocs.org/sdr/TWAA9911211), Aug 10, 1999: SUPPORT. CORRODED. DURING OP 16 MAINT CHECK, FOUND CENTER FLOOR SUPPORT BEAM AT STA 148 TO 218, WAS CORRODED. REPLACED PART PER SRM 6-70-01. - [SDR TWAA9911205](https://openairdocs.org/sdr/TWAA9911205), Aug 5, 1999: LONGERON. CRACKED. DURING OP 16 MAINT CHECK, FOUND LONGERON CRACKED AT UPPER TIE POINT, STA 965, LONGERON 16R. REPAIRED PER SRM 53-02, FIG 18 PAGE 52, DRAWING 5911427. - [SDR TWAA9911204](https://openairdocs.org/sdr/TWAA9911204), Aug 5, 1999: SUPPORT. CORRODED. DURING OP 16 MAINT CHECK, FOUND CORROSION ON FLOOR PANEL SUPPORT AT STA 180, BL 0 TO RBL 45 IN. REPLACED PART PER SPM 6-70-01. - [SDR TWAA9911110](https://openairdocs.org/sdr/TWAA9911110), Aug 3, 1999: JAMB. CRACKED. DURING OP 16 MAINT CHECK IN THE FWD CARGO DOOR OPENING, FOUND A CRACK IN SUBSURFACE OF FUSELAGE AT LOWER AFT DOOR JAM AREA. INSTALLED A TWO PIECE DOUBLER. CRACK - [SDR TWAA9911109](https://openairdocs.org/sdr/TWAA9911109), Aug 2, 1999: ANGLE. CRACKED. DURING OP 16 MAINT CHECK AT STA 980, BETWEEN LONGERON 28L AND 27L, INTERCOSTAL ATTACH ANGLE WAS CRACKED. REPLACED CRACKED ANGLE WITH ANGLE OF SAME MATERIAL AS E - [SDR TWAA9911108](https://openairdocs.org/sdr/TWAA9911108), Aug 2, 1999: FORMER. CRACKED. DURING OP 16 MAINT CHECK, FOUND CRACK IN FORMER .5 INCHES IN LENGTH AT STA 965, LT FWD SIDE, AT JUNCTION OF LOWER LEG OF ENG MOUNT. INSTALLED CHORD ANGLE PART N - [SDR TWAA9911107](https://openairdocs.org/sdr/TWAA9911107), Aug 2, 1999: ANGLE. CRACKED. DURING OP 16 MAINT CHECK, FOUND IN LT SIDE OF CABIN AT STA 965 FORMER TO LONGERON 17L HAD ATTACH ANGLE CRACKED. REPLACED ANGLE PART NR 2916078-501, PER SPM 6-70 - [SDR TWAA9911106](https://openairdocs.org/sdr/TWAA9911106), Aug 2, 1999: WEB. CRACKED. DURING OP 16 MAINTENANCE, AFT PASSENGER DOOR WAS CRACKED AT PAN, FWD SIDE OF DOOR, ABOVE UPPER LATCH FITTING. REMOVED AND REPLACED WEB PER SRM 6-70-01, PAGE 2, - [SDR TWAA9911105](https://openairdocs.org/sdr/TWAA9911105), Aug 2, 1999: ANGLE. CRACKED. DURING OP 16 MAINTENANCE CHECK, AFT CARGO AREA STATION 945, BETWEEN LEFT LONGERON NR 29 AND NR 30, FRAME ANGLE SPLICE WAS CRACKED AT A RIVET. REPLACED ANGLE WIT - [SDR TWAA9911104](https://openairdocs.org/sdr/TWAA9911104), Jul 30, 1999: WEB. CRACKED. DURING OP 16 MAINTENANCE CHECK, FOUND RT MLG WHEEL WELL CRACKED AT AFT INBD CORNER OF RT MLG WHEEL WELL, 30 INCHES FROM CABIN FLOOR. STOP DRILLED CRACK AND REPA - [SDR TWAA9910911](https://openairdocs.org/sdr/TWAA9910911), Jul 29, 1999: FRAME. CRACKED. DURING OP 16 MAINT CHECK, FOUND CRACK IN RADIUS OF FRAME 9911505-6 APPROXIMATELY .75 INCH IN LENGTH, FWD OF RT CENTER WINDSHIELD POST, STA 83.5 AT X=-10. REPAIR - [SDR TWAA9910910](https://openairdocs.org/sdr/TWAA9910910), Jul 29, 1999: FRAME. CRACKED. DURING OP 16 MAINT CHECK, FOUND CRACK IN FRAME NUMBER 9911505-5 ALONG RIVETS APPROXIMATELY 1.25 INCHES IN LENGTH, FWD OF LT CENTER WINDSHIELD POST, STA 83.5 AT - [SDR TWAA9910909](https://openairdocs.org/sdr/TWAA9910909), Jul 29, 1999: ANGLE. CRACKED. DURING OP 16 MAINT CHECK, FOUND ANGLE FROM FLOORBEAM TO INTERCOASTAL CRACKED AT STA 929, RBL 23 INCHES. REPLACED EXTRUSION PER SPM 6-70-01, PAGES 2 AND 3. - [SDR TWAA9910908](https://openairdocs.org/sdr/TWAA9910908), Jul 28, 1999: FORMER FOOT. CRACKED. DURING OP 16 MAINT CHECK, FOUND CRACK AT FORMER FOOT AT AFT SIDE OF FORMER STA 1109, 10 INCHES LT SIDE OF LONGERON NUMBER 1. INSTALLED NEW FORMER FOOT PER SRM 5 - [SDR TWAA9910907](https://openairdocs.org/sdr/TWAA9910907), Jul 28, 1999: FORMER FOOT. CRACKED. DURING OP 16 MAINT CHECK, FOUND A CRACK AT THE FORMER FOOT AT THE AFT SIDE OF FORMER STA 1109, EIGHT INCHES RIGHT SIDE OF LONGERON 1. INSTALLED NEW FORMER FOOT - [SDR TWAA9910906](https://openairdocs.org/sdr/TWAA9910906), Jul 27, 1999: STRINGER. CRACKED. DURING OP 16 MAINT CHECK, FOUND STRINGER 4L CRACKED AT FORMER STA 200. REPLACED STRINGER FROM APPROX STA 230 TO 170. INSTALLED REPAIR SPLICE AT STA 170 PER SRM - [SDR TWAA9910904](https://openairdocs.org/sdr/TWAA9910904), Jul 26, 1999: ANGLE. CRACKED. DURING OP 16 MAINT CHECK, FOUND FLOORBEAM SUPPORT ANGLE CRACKED AT STA 617, RBL 23 INCHES. REPLACED PARTS PER SPM 6-70-01, PAGE 3. - [SDR TWAA9910705](https://openairdocs.org/sdr/TWAA9910705), Jul 26, 1999: ANGLE. CRACKED. DURING OP 16 MAINT CHECK, FOUND AFT FUSELAGE RT SUPPORT ANGLE CRACKED AT LOWER LOUVER SUPPORT. REPLACED ANGLE PER SPM 6-70-01. - [SDR TWAA9910703](https://openairdocs.org/sdr/TWAA9910703), Jul 25, 1999: FLOORBEAM. CRACKED. DURING OP 16 MAINT CHECK, FOUND FLOOR SUPPORT BEAM CRACKED AT LT SIDEWALL STA 680. CONFIRMED BY NDT. REPLACED FLOOR SUPPORT PER SPM 6-70-01. - [SDR TWAA9910905](https://openairdocs.org/sdr/TWAA9910905), Jul 23, 1999: STRINGER. CRACKED. DURING OP 16 MAINT CHECK, FOUND CABIN STRINGER 2L CRACKED AT FORMER STA 200. REPLACED CRACKED SECTIONS AND INSTALLED SPLICE PER SRM 53-02, PAGE 48 FIG 18, STA 1 - [SDR TWAA9910704](https://openairdocs.org/sdr/TWAA9910704), Jul 23, 1999: ANGLE. CRACKED. DURING OP 16 MAINT CHECK, FOUND ANGLE FROM FLOORBEAM TO INTERCOSTAL CRACKED AT STA 897, RBL 23. REMOVED OLD ANGLE, FABRICATED NEW ANGLE, REINSTALLED NEW ANGLE A - [SDR TWAA9910702](https://openairdocs.org/sdr/TWAA9910702), Jul 22, 1999: SPLICE. LIGHTNING STRIKE. DURING OP 16 MAINT CHECK, FOUND STATIC BURN ON RIVET IN PRODUCTION SPLICE, STA 237 AND 218, RL 28 AND 29. REPLACED RIVET PER SRM 53-04, FIG 38. - [SDR TWAA9910701](https://openairdocs.org/sdr/TWAA9910701), Jul 20, 1999: SUPPORT. CRACKED. DURING OP 16 MAINT CHECK, THE VERTICAL SUPPORT FROM CARGO BIN TO FLOORBEAM WAS CRACKED AT TOP, STA 756 RBL 22 INCHES, AFT SIDE OF BEAM. STOP DRILLED CRACK PER S - [SDR TWAA9909911](https://openairdocs.org/sdr/TWAA9909911), Jul 12, 1999: STIFFENER. CRACKED. DURING OP 16 MAINT CHECK, FOUND COCKPIT VERTICAL STIFFENER 9957860-6, RT SIDE AT APPROXIMATELY 69.5, X=-10, CRACKED IN THE RADIUS. CRACK APPROXIMATELY 1 INCH LO - [SDR TWAA9909908](https://openairdocs.org/sdr/TWAA9909908), Jul 12, 1999: DOUBLER. CRACKED. DURING OP 16 MAINT CHECK, FOUND CRACK IN P/N 5912350-20 DOUBLER APPROXIMATELY 1.75 INCHES FORE AND AFT AT INBD END OF FRAME 9911505-6. FWD OF RT CENTER WINDSHIE - [SDR TWAA9909907](https://openairdocs.org/sdr/TWAA9909907), Jul 12, 1999: DOUBLER. CRACKED. DURING OP 16 MAINT CHECK, FOUND NOSE HAD CRACK IN PART NBR 5912350-19 DOUBLER APPROXIMATELY .5 INCH FORE AND AFT AT INBD END OF FRAME 9911505-5. FORWARD OF LT C - [SDR TWAA9909909](https://openairdocs.org/sdr/TWAA9909909), Jul 11, 1999: LONGERON. DAMAGED. DURING OP 16 MAINT CHECK, FOUND STATIC BURN AT STA 180 TO 200, LONGERON 4L AND 5L, WAS GROUND BEYOND LIMITS. REPAIRED PER SRM 53-04, FIG 38 SHEET 18 VIEW E. - [SDR TWAA9909910](https://openairdocs.org/sdr/TWAA9909910), Jul 9, 1999: RIB. CRACKED. DURING OP 16 MAINT CHECK, FOUND STA ZPS 52 RIB CRACKED LT LOWER CORNER, STA ZFS 52 RIB CRACKED LOWER CORNER, AND STA ZFS 45 RIB CRACKED IN THE LOWER CORNER. REP - [SDR TWAA9909604](https://openairdocs.org/sdr/TWAA9909604), Jul 1, 1999: STIFFENER. CRACKED. DURING OP 16 MAINT CHECK, FOUND VERTICAL STIFFENER NUMBER 9957860-5, LT SIDE AT APPROXIMATELY STA 69.5, X=+10, CRACKED IN THE RADIUS. CRACK APPROXIMATELY .5 INC - [SDR TWAA9909603](https://openairdocs.org/sdr/TWAA9909603), Jul 1, 1999: INTERCOSTAL. CRACKED. DURING OP 16 MAINT CHECK, INTERCOSTAL WAS CRACKED APPROXIMATELY .25 INCH IN BEND RADIUS AT FWD LOWER CORNER JUST AFT OF STA 69.5, RBL 12.5. MANUFACTURED NEW INT - [SDR TWAA9909602](https://openairdocs.org/sdr/TWAA9909602), Jul 1, 1999: INTERCOSTAL. CRACKED. DURING OP 16 MAINT CHECK, FOUND INTERCOSTAL CRACKED APPROXIMATELY .25 INCH IN BEND RADIUS AT FWD LOWER CORNER JUST AFT OF STA 69.5, LBL 12.5 IN. MANUFACTURED NE - [SDR TWAA9909605](https://openairdocs.org/sdr/TWAA9909605), Jun 29, 1999: SKIN. CRACKED. DURING OP 16 MAINT CHECK, FOUND CRACK APPROXIMATELY 1 INCH AT TOP OF WING LEADING EDGE AT APPROXIMATELY 18 IN OTBD OF NR 7 LEADING EDGE SLAT TRACK. REPAIRED PER - [SDR TWAA9908904](https://openairdocs.org/sdr/TWAA9908904), Jun 23, 1999: BULKHEAD BRACE. CRACKED. DURING OP 16 MAINT CHECK, FOUND AFT PRESSURE BULKHEAD, FORWARD SIDE DIAGIONAL BRACE ON PRESSURE BULKHEAD AT STA 996, CRACKED AT UPPER END BETWEEN LONGERON 3L AN - [SDR TWAA9908903](https://openairdocs.org/sdr/TWAA9908903), Jun 23, 1999: STIFFENER. CRACKED. DURING OP 16 MAINT CHECK, FOUND COCKPIT VERTICAL STIFFENER NUMBER 9911503-167 WAS CRACKED IN THE RADIUS APPROXIMATELY 1.5 INCH LONG, APPROX 2 INCHES BELOW TOP O - [SDR TWAA9909601](https://openairdocs.org/sdr/TWAA9909601), Jun 15, 1999: LONGERON. CRACKED. DURING OP 16 MAINT CHECK, FOUND A CRACK IN LONGERON 5R, APPROXIMATELY .75 INCH LONG THROUGH RIVET STA 679. REPAIRED PER DRAWING SR09530128. - [SDR TWAA9909103](https://openairdocs.org/sdr/TWAA9909103), May 13, 1999: SPAR. CORRODED. DURING OP 16 MAINT CHECK FOUND THE HORIZONTAL STABILIZER UPPER SPAR CAP BARREL NUT LEFT SIDE AFT HOLE WAS CORRODED. REPAIRED PER ARA 16167. - [SDR TWAA9909102](https://openairdocs.org/sdr/TWAA9909102), May 13, 1999: SPAR. CORRODED. DURING OP 16 MAINT CHECK FOUND THE HORIZONTAL STABILIZER UPPER SPAR CAP BARREL NUT HOLE, RIGHT SIDE AFT, THE HOLE WAS CORRODED. REPAIRED PER ARA 16167. - [SDR TWAA9907509](https://openairdocs.org/sdr/TWAA9907509), May 13, 1999: SPAR. CORRODED. DURING OP 16 MAINT CHECK, FOUND THE HORIZ STABILIZER UPPER SPAR CAP BARREL NUT HOLES, RT SIDE AFT HOLE, AND LT SIDE AFT HOLE, WERE CORRODED. REPAIRED PER ARA 16 - [SDR TWAA9805401](https://openairdocs.org/sdr/TWAA9805401), Apr 11, 1998: COFEE MAKER. SHORTED. STL - FLT 531 - NR 2 COFFEE MAKER SHOT FLAMES AND SMOKE. TURNED OFF COFFEE MAKER. REPLACED COFFEE MAKER. CHECK-C 12-3-97 STL. (X) - [SDR TWAA9613702](https://openairdocs.org/sdr/TWAA9613702), Nov 10, 1996: DOWNLOCK SWITCH. MALFUNCTIONED. STL - FLT 631 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, RIGHT MAIN LANDING GEAR DID NOT INDICATE DOWN AND LOCKED. CYCLED LANDING GEAR. FOUND RIGHT MAIN ## 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 19960609019479I](https://openairdocs.org/incident/19960609019479I), Jun 9, 1996: Doug DC931 (N979Z), Dallas-Ft Worth, TX, Minor damage. Narrative: aircraft started taxi when left wingtip was hit by ogden mail truck. Damage minor. Being repaired by twa maintenance. This incident is closed. - [Incident 19800830081969I](https://openairdocs.org/incident/19800830081969I), Aug 30, 1980: Doug DC931 (N979Z), St. Louis, MO, Minor damage. While the aircraft was parked at the gate, it was struck in the wing tip by an airport shuttle bus. ## Other aircraft with N979Z - [Registered now](https://openairdocs.org/aircraft/N979Z): Robert P Zaleski SLING 2, S/N 148, built 2017 --- 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.