# Service difficulty reports: N976Z, cancelled Aug 24, 2001 A list on [N976Z, cancelled Aug 24, 2001](https://openairdocs.org/deregistered/N976Z-2001-08-24.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR TWAA0007101](https://openairdocs.org/sdr/TWAA0007101.md): Oxygen Mask · deployed · May 5, 2000 · N976Z · Doug DC931 · Passenger Oxygen System > IN CRUISE FLIGHT CREW ERROR CONTRIBUTED TO A LOSS OF PRESSURIZATION. PASSENGER OXYGEN MASKS DROPPED AUTOMATICALLY. SEAT ROW 7 RT SIDE THE OXY MASK VALVE PULL PINS WERE MISSING PREVENTING THE FLOW OF OXYGEN, AND AT ROW 22 RT SIDE THE MASKS DID NOT DEPLOY. BO - [SDR TWAA9915505](https://openairdocs.org/sdr/TWAA9915505.md): Power Supply · inop · Nov 13, 1999 · N976Z · Doug DC931 · Emergency Lighting > THE EGRESS LIGHTS FROM ROW 16 THROUGH 21 ILLUMINATED INTERMITTENTLY. REPLACED THE POWER SUPPLY. CHECK-C 10-2-99 STL. - [SDR TWAA9915504](https://openairdocs.org/sdr/TWAA9915504.md): Battery Pack · discharged · Nov 13, 1999 · N976Z · Doug DC931 · Emergency Lighting > THE EGRESS LIGHTS ILLUMINATED FROM ROWS 16 TO 21 WITH THE SWITCH IN ARM POSITION. REPLACED THE BATTERY PACK. CHECK-C 10-2-99 STL. - [SDR TWAA9914103](https://openairdocs.org/sdr/TWAA9914103.md): Longeron · cracked · Oct 8, 1999 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > DURING CHECK-C, MAINT FOUND LONGERON 6R CRACKED.375 INCH AT STA 756. REPAIRED PER SRM 53-02, FIG 18. - [SDR TWAA9913905](https://openairdocs.org/sdr/TWAA9913905.md): Longeron · cracked · Oct 8, 1999 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > DURING CHECK-C MAINT, FOUND LONGERON 8L WAS CRACKED.375 INCHES AT STA 680. SPLICED NEW SECTION OF LONGERON USING SRM 53-02, FIG 18 FOR SPLICE. - [SDR TWAA9907101](https://openairdocs.org/sdr/TWAA9907101.md): Controller · malfunctioned · May 11, 1999 · N976Z · Doug DC931 · Cabin Pressure Controller > WHILE DESCENDING FROM FL350 TO FL310, LOST CABIN PRESSURIZATION CONTROL. ACCOMPLISHED EMERGENCY DESCENT. REGAINED CONTROL AT LOWER ALTITUDE. MADE UNSCHEDULED LANDING AT IAH. FOUND AUTO PRESSURIZATION CONTROL INOPERATIVE. PLACARDED AUTO PRESSURIZATION CONT - [SDR TWAA9812207](https://openairdocs.org/sdr/TWAA9812207.md): Skin · corroded · Jul 23, 1998 · N976Z · Doug DC931 · Fuselage Main, Plate/Skin > DURING CHECK-C, FOUND BULGE IN SKIN AT STA 994, STR 25L. REPLACED CORRODED TIE WITH NEW TIE USING RIVETS AND HI-LOKS PER SRM 51-01, PG 4, 51-30-5, AND TWA DRAWING 5911423. - [SDR TWAA9808002](https://openairdocs.org/sdr/TWAA9808002.md): Transceiver · failed · May 20, 1998 · N976Z · Doug DC931 · Weather Radar System > STL - FLT 647 - AFTER TAKEOFF WEATHER RADAR SHOWS NO TARGETS ON DISPLAY. REPLACED RADAR RADIO TRANSMITTER MFG P/N 2067157-0153. (M) - [SDR TSAA9808002](https://openairdocs.org/sdr/TSAA9808002.md): Rt Unit · failed · May 20, 1998 · N976Z · Doug DC931 · Weather Radar System > STL - FLR 647 - AFTER TAKEOFF, WEATHER RADAR SHOWS NO TARGETS ON DISPLAY. REPLACED RADAR RADIO TRANSMITTER MFG P/N 2067157-0153. OP-15 5-20-97 STL CLOSED. (X) - [SDR TWAA9763005](https://openairdocs.org/sdr/TWAA9763005.md): Frame · cracked · May 8, 1997 · N976Z · Doug DC931 · Fuselage Main, Frame > STL - DURING OP-16, FOUND MAIN FRAME CRACK AT RIGHT SIDE THROUGH RADIUS, STATION 718. REPLACED MAIN FRAME PER SRM 51-10 AND CHAPTER 20, TWA STANDARD PRACTICES. (M) - [SDR TWAA9763004](https://openairdocs.org/sdr/TWAA9763004.md): Longeron · cracked · May 3, 1997 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-16, FOUND A 1 INCH CRACK IN OUTBOARD FLANGE OF LONGERON 3L, STATION 200. REMOVED DAMAGED LONGERON AND INSTALLED NEW ONE PER SRM 51-30-02 AND 53-30-5. (M) - [SDR TWAA9763003](https://openairdocs.org/sdr/TWAA9763003.md): Longeron · cracked · May 3, 1997 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-16, FOUND A 1 INCH CRACK IN OUTBOARD FLANGE OF LONGERON 4L, STATION 200. INSTALLED NEW LONGERON PER SRM 51-30-02 AND 51-03-05. (M) - [SDR TWAA9763002](https://openairdocs.org/sdr/TWAA9763002.md): Longeron · cracked · May 1, 1997 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-16, FOUND A ONE INCH CRACK ON UPPER AND LOWER FLANGES OF CABIN INTERIOR LONGERON 17T, STATION 945. INSTALLED NEW SECTION OF LONGERON PER SRM 53-02, PAGE 2A, FIGURE 2. (M) - [SDR TWAA9753006](https://openairdocs.org/sdr/TWAA9753006.md): Longeron · cracked · Apr 28, 1997 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-16, FOUND A ONE INCH CRACK IN BOTH FLANGES OF LONGERON 2L, STATION 200. REPLACED LONGERON PER SRM 53-02, PAGE 2A, FIGURE 2. (M) - [SDR TWAA9753005](https://openairdocs.org/sdr/TWAA9753005.md): Longeron · corroded · Apr 25, 1997 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-16, FOUND CORROSION IN CENTE ROF LONGERON 30, STATION 884. REPLACED LONGERON PER SRM 51, AND TWA STANDARD PRACTICES. (M) - [SDR TWAA9753003](https://openairdocs.org/sdr/TWAA9753003.md): Longeron · cracked · Apr 12, 1997 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-16, FOUND LONGERON 5R CRACKED AT STATION 680. REMOVED CRACKED PORTION OF LONGERON AND SPLICED IN NEW SECTION PER SRM 53-02, FIGURE 2. (M) - [SDR TWAA9716002](https://openairdocs.org/sdr/TWAA9716002.md): Uplock Switch · dirty · Jan 31, 1997 · N976Z · Doug DC931 · Landing Gear Position and Warning > STL - FLT 532 - DURING FINAL APPROACH, NOSE GEAR DOWN AND LOCKED LIGHT WENT OUT. DISCONNECTED, CLEANED AND RECONNECTED UPLOCK SWITCH. OPERATIONAL CHECK NORMAL. (M) - [SDR 95ZZZX5150](https://openairdocs.org/sdr/95ZZZX5150.md): Engine · failed · Aug 24, 1995 · N976Z · Doug DC931 · Engine (Turbine/Turboprop) > CLE - FLT 384 - DURING DESCENT, SHUT DOWN NR 2 ENGINE, SN 2161, DUE TO LOW OIL PRESSURE LIGHT ILLUMINATION AND DECREASING OIL QUANTITY. FOUND OIL LEAK AT NR 1 BEARING AND METAL PARTICLES IN OIL SCREEN. CHANGED NR 2 ENGINE. ENGINE OPERATION CHECKED NORMAL. - [SDR 95ZZZX3407](https://openairdocs.org/sdr/95ZZZX3407.md): Longeron · corroded · Jun 17, 1995 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-15, FOUND CORROSION ON LONGERON 30, AT 6 FASTENERS BETWEEN STA 484 AND STA 503. REPAIRED PER SRM 53-02, FIGURE 14, AIRCRAFT TOTAL TIME: 66,307 HOURS; 81,289 CYCLES. - [SDR 95ZZZX3410](https://openairdocs.org/sdr/95ZZZX3410.md): Trap Panel · cracked · Jun 14, 1995 · N976Z · Doug DC931 · Fuselage Miscellaneous Structure > STL - DURING OP-15, FOUND.75 INCH CRACK BETWEEN 5 AND 6 HOLE FORWARD END OF RIGHT TRAPEZOIDAL PANEL. INSTALLED NEW PANEL PER SRM 57-09. AIRCRAFT TOTAL TIME: 66,307 HOURS; 31,289 CYCLES. - [SDR 95ZZZX4156](https://openairdocs.org/sdr/95ZZZX4156.md): Longeron · cracked · May 30, 1995 · N976Z · Doug DC931 · Fuselage Main, Longeron/Stringer > STL - DURING OP-15, FOUND.1250 INCH CRACK IN LONGERON 29R, STA 218. REPAIRED BY REPLACING LONGERON PER SRM 51-10-0, PAGES 1 AND 2, AND STANDARD PRACTICES. AIRCRAFT TOTAL TIME: 66,307 HOURS; 81,239 CYCLES. - [SDR 95ZZZX2353](https://openairdocs.org/sdr/95ZZZX2353.md): Springs · failed · Apr 27, 1995 · N976Z · Doug DC931 · Landing Gear Door Retract Section > STL - FLT 147 - AFTER LANDING GEAR RETRACTION, RIGHT DOOR AND GEAR UNSAFE LIGHT ILLUMINATED DURING UPLATCH CHECK. RECYCLED GEAR WITH SAME RESULTS. REPLACED DOOR LATCH BRACKET, MFG PN 4956737-1, AND SPRINGS, MFG PN 2923594-1. OP CHECKS NORMAL. CHECK C - 5-2 - [SDR 95ZZZX2352](https://openairdocs.org/sdr/95ZZZX2352.md): Latch Bracket · failed · Apr 27, 1995 · N976Z · Doug DC931 · Landing Gear Door Retract Section > STL - FLT 147 - AFTER LANDING GEAR RETRACTION, RIGHT DOOR AND GEAR UNSAFE LIGHT ILLUMINATED DURING UPLATCH CHECK. RECYCLED GEAR WITH SAME RESULTS. REPLACED DOOR LATCH BRACKET, MFG PN 4956737-1, AND SPRINGS, MFG PN 2923594-1. OP CHECKS NORMAL. CHECK C - 5-2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE n_number = 'N976Z' AND deregistration_id = 'N976Z-2001-08-24' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N976Z-2001-08-24/reports --- 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.