# Service difficulty reports: N978Z, cancelled Aug 21, 2013

A list on [N978Z, cancelled Aug 21, 2013](https://openairdocs.org/deregistered/N978Z-2013-08-21.md).

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

- [SDR TWAA0017202](https://openairdocs.org/sdr/TWAA0017202.md): Bottle · discharged · Nov 1, 2000 · N978Z · Doug DC931 · Escape Slide
  > THE LEFT SIDE NUMBER 1 CABIN DOOR EVACUATION SLIDE BOTTLE PRESSURE WAS FOUND LOW. REPLACED THE SLIDE ASSEMBLY. CHECK-C 6-4-00 MCI.
- [SDR TWAA0008713](https://openairdocs.org/sdr/TWAA0008713.md): Floorbeam · corroded · May 24, 2000 · N978Z · Doug DC931 · Fuselage Main, Floor Beam
  > DURING CHECK-C MAINT IN AFT CABIN AT STA 965 JUST UNDER I/B RIGHT LAV WALL AT LOWER SIDE OF FLOORBEAM, FOUND SUPPORT STRAP CORRODED. INSTALLED NEW SECTION OF 9912243-52 CHORD PER ARA 16725.
- [SDR TWAA0008712](https://openairdocs.org/sdr/TWAA0008712.md): Floorbeam · corroded · May 24, 2000 · N978Z · Doug DC931 · Fuselage Main, Floor Beam
  > DURING CHECK-C MAINT IN AFT CABIN AT LOWER FWD SIDE OF CABIN FLOORBEAM, STA 965 RBL 32 IN, HAD HEAVY CORROSION. INSTALLED DOUBLER AND STRAPS PER ARA 16725.
- [SDR TWAA0008711](https://openairdocs.org/sdr/TWAA0008711.md): Skin · cracked · May 23, 2000 · N978Z · Doug DC931 · Fuselage Main, Plate/Skin
  > AT CHECK-C MAINT CHECK, FOUND APPROX 2 INCH CRACK IN OUTER SKIN AT STA 108, BETWEEN LONGERON 27L AND 28L. ACCOMP NDT HIGH FREQ EDDY CURRENT PER 51-00-03 PART 6. CRACK WAS CONTAINED AT DRAIN HOLE. STOP DRILLED CRACK AND INSTALLED REPAIR DOUBLER PER SRM 53-01
- [SDR TWAA0008309](https://openairdocs.org/sdr/TWAA0008309.md): Airstair · bent · May 17, 2000 · N978Z · Doug DC931 · Entrance Stairs
  > DURING CC, FOUND IN THE AREA OF THE AFT STAIRS, FWD LOWER EDGE OF THE AIRSTAIR BENT AND HAS 2 CRACKS. LONGEST IS APPROXIMATELY ONE INCH. PERFORMED EDDY CURRENT FOR CRACK CONTAINMENT. STOP DRILLED AND INSTALLED AN EXTERNAL DOUBLER AS PER THE SRM 52-01 FIG 2.
- [SDR TWAA0008308](https://openairdocs.org/sdr/TWAA0008308.md): Skin · cracked · May 17, 2000 · N978Z · Doug DC931 · Nacelle/Pylon, Plate/Skin
  > DURING CC, FOUND RT PYLON, UPPER SKIN CRACKED AT THE TOP OF THE PYLON ON THE WEDGE APPROXIMATELY 11 INCHES FROM THE FIXED COWL AFT EDGE, OUTBOARD EDGE OF THE SKIN. STOP DRILLED CRACKS, MADE DOUBLER SAME GUAGE THICKNESS AS SKIN AND INSTALLED WITH.125 INCH MS2
- [SDR TWAA0007603](https://openairdocs.org/sdr/TWAA0007603.md): Longeron · cracked · May 11, 2000 · N978Z · Doug DC931 · Fuselage Main, Longeron/Stringer
  > DURING CHECK-C, MAINT FOUND LONGERON 5R AT STA 699, WAS CRACKED. INSTALLED NEW SECTION PER SRM 53-02, FIG 18.
- [SDR TWAA9913702](https://openairdocs.org/sdr/TWAA9913702.md): Bus Tie Unit · worn · Oct 5, 1999 · N978Z · Doug DC931 · AC Power Distribution System
  > AFTER TAKEOFF, BOTH ENGINE GENERATORS TRIPPED OFF LINE. THE APU WAS RUNNING AND TOOK THE LOAD. THE RT GEN RESET BUT THE LT WOULD NOT. FLIGHT RETURNED TO STL. REPLACED THE BUS TIE UNIT AND RESET THE LH GEN CONTROL UNIT. CHECK-C 4-30-99 STL.
- [SDR TWAA9808501](https://openairdocs.org/sdr/TWAA9808501.md): Power Supply · inoperative · May 27, 1998 · N978Z · Doug DC931 · Emergency Lighting
  > STL - FLT 281 - DURING PREFLIGHT CHECK, FOUND L1 AND R1 EMERGENCY EXIT LIGHTS AND EGRESS LIGHTS IN AREA OF ROW 7 INOP. REPLACED POWER SUPPLY MFG P/N 5822-2 AND FLOOR FLEX CABLE MFG P/N 5853-1 RESPECTIVELY. (M)
- [SDR TWAA9801701](https://openairdocs.org/sdr/TWAA9801701.md): Longeron · cracked · Feb 2, 1998 · N978Z · Doug DC931 · Fuselage Main, Longeron/Stringer
  > STL - DURING OP16 MAINTENANCE CHECK, LONGERON 5L WAS FOUND WITH A.5 INCH CRACK AT STATION 737. REPAIRED PER SRM 53-02 FIG 18. (M)
- [SDR TWAA9802903](https://openairdocs.org/sdr/TWAA9802903.md): Longeron · cracked · Jan 26, 1998 · N978Z · Doug DC931 · Fuselage Main, Longeron/Stringer
  > STL - DURING OP 16 MAINTENANCE CHECK, THE LOWER ATTACH LEG OF LONGERON 12 RT STA 965 WAS FOUND CRACKED.25 INCH. SPLICED IN NEW LONGERON SECTION FROM STA 958 TO STA 972 RT SIDE OF FUSELAGE LONGERON 12 RT. LONGERON SPLICED IN PER SRM 53-02 FIG 18. ACFT TT:
- [SDR TWAA9802906](https://openairdocs.org/sdr/TWAA9802906.md): Longeron · cracked · Jan 24, 1998 · N978Z · Doug DC931 · Fuselage Main, Longeron/Stringer
  > STL - DURING OP 15 MAINTENCE CHECK, LONGERON 3L BELT RING WAS FOUND WITH A.25 INCH CRACK AT STA 160. REPLACED LONGERON FROM STA 148 END FITTING TO FACTORY SPLICE PER SRM 51-10. ACFT TT: 70,351 HOURS. ACFT TC: 83,824. (X)
- [SDR TWAA9802905](https://openairdocs.org/sdr/TWAA9802905.md): Longeron · cracked · Jan 24, 1998 · N978Z · Doug DC931 · Fuselage Main, Longeron/Stringer
  > STL - DURING OP 15, A.25 INCH CRACK WAS FOUND AT STA 160 LONGERON 4L BELT RING. REPLACED LONGERON FROM STA 148 END FITTING TO FACTORY SPLICE PER SRM 51-10. ACFT TT: 70,351 HOURS. ACFT TC: 83,824. (X)
- [SDR TWAA9802904](https://openairdocs.org/sdr/TWAA9802904.md): Longeron · cracked · Jan 24, 1998 · N978Z · Doug DC931 · Fuselage Main, Longeron/Stringer
  > STL - DURING OP 15 MAINTENANCE CHECK, A CRACK WAS FOUND AT STA 200 LONGERON 4L. REPLACED LONGERON FROM STA 148 END FITTING TO FACTORY SPLICE PER SRM 51-10. ACFT TT: 70,351 HOURS. ACFT TC: 83,824. (X)
- [SDR TWAA9711002](https://openairdocs.org/sdr/TWAA9711002.md): Power Supply · inoperative · Sep 7, 1997 · N978Z · Doug DC931 · Emergency Lighting
  > STL - FLT 27 - DURING CRUISE, THE EMERGENCY EXIT FLOOR LIGHTS ILLUMINATED. REMOVED AND REPLACED THE POWER SUPPLY, MFG P/N 5822-2, MANUFACTURED BY LUMINESCENT SYSTEMS INC. (M)
- [SDR TWAA9754002](https://openairdocs.org/sdr/TWAA9754002.md): Connector · dirty · Apr 30, 1997 · N978Z · Doug DC931 · Emergency Lighting
  > FLT 614 - STL - DURING CRUISE EMERGENCY EGRESS LIGHTS ILLUMINATED IN LAST THREE ROWS OF COACH. REMOVED, CLEANED AND RECONNECTED BATTERY PACK CONNECTOR. OPERATIONAL CHECK NORMAL. (M)
- [SDR TWAA9725001](https://openairdocs.org/sdr/TWAA9725001.md): Connector · moisture contam · Feb 19, 1997 · N978Z · Doug DC931 · Emergency Lighting
  > STL - DURING CRUISE, AFT CABIN EMERGENCY EGRESS LIGHTS ILLUMINATED. CLEANED MOISTURE FROM TRACK AND LIGHT CONNECTOR. OPERATIONAL CHECK NORMAL. (M)
- [SDR 96ZZZM781](https://openairdocs.org/sdr/96ZZZM781.md): Longeron · cracked · Mar 23, 1996 · N978Z · Doug DC931 · Fuselage Main, Longeron/Stringer
  > DURING C-CHECK, FOUND.5 INCH CRACKS IN UPPER AND LOWER LEGS OF LONGERON 6L, STATION 688. REPAIRED PER SRM 53-02, FIGURE 2. (M)
- [SDR 96ZZZM780](https://openairdocs.org/sdr/96ZZZM780.md): Longeron · cracked · Mar 23, 1996 · N978Z · Doug DC931 · Fuselage Main, Longeron/Stringer
  > DURING C-CHECK, FOUND.5 INCH CRACKS AT UPPER AND LOWER LEGS OF LONGERON 5L, STATION 699. REPAIRED PER SRM 53-02, FIGURE 2.
- [SDR 96ZZZM653](https://openairdocs.org/sdr/96ZZZM653.md): Uplimit Sw · broken wire · Mar 14, 1996 · N978Z · Doug DC931 · Landing Gear Position and Warning
  > STL - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, NOSE LANDING GEAR DOWN AND LOCKED GREEN LIGHT DID NOT ILLUMINATE. CYCLED LANDING GEAR. FOUND BROKEN WIRE TO PIN 7 OF UPLIMIT SWITCH, MFG P/N H14-6. REPAIRED WIRE TO PIN 7 AND NOSE LANDING GEAR INDICATION
- [SDR 96ZZZX1231](https://openairdocs.org/sdr/96ZZZX1231.md): Schrader Valve · iced up · Feb 3, 1996 · N978Z · Doug DC931 · Nose/Tail Landing Gear Strut/Axle
  > STL - FLT 585 - AFTER TAKEOFF WHEN LANDING GEAR WAS RETRACTED, NLG UNSAFE RED LIGHT REMAINED ILLUMINATED WITH INTERMITTENT WARNING HORN. CYCLED LANDING GEAR. FOUND ICE IN NLG STRUT SCHRADER VALVE, MFG PN B05076-2. REPLACED SCHRADER VALVE, SERVICED NOSE STRU

## 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 = 'N978Z' AND deregistration_id = 'N978Z-2013-08-21'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N978Z-2013-08-21/reports

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