# Service difficulty reports: N9413T, cancelled Sep 27, 2013

A list on [N9413T, cancelled Sep 27, 2013](https://openairdocs.org/deregistered/N9413T-2013-09-27.md).

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

Page 1 of 2 · 58 reports

- [SDR AALA20130518003](https://openairdocs.org/sdr/AALA20130518003.md): Battery · inoperative · May 17, 2013 · N9413T · Doug DC983 · Emergency Lighting
  > EMERGENCY LIGHTS ABOVE SEATS 28D THROUGH 32D INOPERATIVE. RESEATED THE BATTERIES IN THE POWER SUPPLY. OPS CHECK NORMAL
- [SDR AALA20121018013](https://openairdocs.org/sdr/AALA20121018013.md): Portable Light · inoperative · Oct 17, 2012 · N9413T · Doug DC983 · Emergency Lighting
  > LEFT NUMBER 1 DOOR PORTABLE EMERGENCY LIGHT INOPERATIVE. REPLACED LEFT NUMBER 1 DOOR PORTABLE LIGHT. OPS CHECK NORMAL.
- [SDR AALA20121018012](https://openairdocs.org/sdr/AALA20121018012.md): Battery · not seated · Oct 17, 2012 · N9413T · Doug DC983 · Emergency Lighting
  > CEILING EMERGENCY LIGHTS FROM ROWS 23 TO 26 INOPERATIVE. RESEATED BATTERIES AT ROW 25. OPS CHECK NORMAL.
- [SDR AALA20121018010](https://openairdocs.org/sdr/AALA20121018010.md): Wire · damaged · Oct 17, 2012 · N9413T · Doug DC983 · Light System Wiring
  > ESCAPE PATH LIGHT AT SEAT 22D INOPERATIVE. REPAIRED WIRING FOR ESCAPE PATH LIGHT AT SEAT 22D. OPS CHECK NORMAL.
- [SDR AALA20120207TUL05](https://openairdocs.org/sdr/AALA20120207TUL05.md): Skin · damaged · Feb 7, 2012 · N9413T · Doug DC983 · Fuselage Main, Plate/Skin
  > DENT AND SCRATCHES IN FUSELAGE SKIN STATION 464 ABOVE LONGERON 21 RIGHT. DYE CHECKED AND NO CRACKS FOUND. FABRICATED AND INSTALLED CLASS III DOUBLER PER SRM 53-04-03 FIGURE 2 SHEET 5.
- [SDR AALA20120207TUL04](https://openairdocs.org/sdr/AALA20120207TUL04.md): Skin · damaged · Feb 7, 2012 · N9413T · Doug DC983 · Fuselage Main, Plate/Skin
  > DENT AND GOUGE IN FUSELAGE SKIN STATION 241 BETWEEN STRINGERS 21 AND 22 LEFT. DYE CHECKED AND NO CRACKS FOUND. INSTALLED DOUBLER PER SRM 53-04-03 FIGURE 02.
- [SDR AALA20120206TUL06](https://openairdocs.org/sdr/AALA20120206TUL06.md): Cusp Web · corroded · Feb 6, 2012 · N9413T · Doug DC983 · Fuselage Miscellaneous Structure
  > LEFT CUSP FROM STATIONS 1171 TO 1176 CORRODED. INSTALLED DOUBLER REPAIR PER AARD 53-20-00-16.
- [SDR AALA20120206TUL05](https://openairdocs.org/sdr/AALA20120206TUL05.md): Cusp Web · damaged · Feb 6, 2012 · N9413T · Doug DC983 · Fuselage Miscellaneous Structure
  > TOOLING MARK ON CUSP AT STATION 864 LEFT UNDER HORSECOLLAR. ACCOMPLISHED DOUBLER REPAIR PER AARD 53-20-00-16.
- [SDR AALA20120206TUL04](https://openairdocs.org/sdr/AALA20120206TUL04.md): Membrane · corroded · Feb 6, 2012 · N9413T · Doug DC983 · Fuselage Miscellaneous Structure
  > STATIONS 160 TO 200 CORRODED BELOW INBOARD LEG OF FORWARD SERVICE DOOR AREA FLOORBOARD SUPPORT. INSTALLED NEW SUBFLOOR AND OVERLAY DOUBLER PER AARD 53-20-00-16.
- [SDR AALA20120131TUL10](https://openairdocs.org/sdr/AALA20120131TUL10.md): Door · damaged · Jan 31, 2012 · N9413T · Doug DC983 · Cargo/Baggage Doors
  > EXTERIOR SKIN ON MID CARGO DOOR HAS SEVERAL AREAS OF DAMAGE. REMOVED AND REPLACED OUTER SKIN ON MID CARGO DOOR PER ESO 80174.
- [SDR AALA20120127TUL17](https://openairdocs.org/sdr/AALA20120127TUL17.md): Cusp Web · corroded · Jan 27, 2012 · N9413T · Doug DC983 · Fuselage Miscellaneous Structure
  > AFT GALLEY SERVICE DOOR JAMB HAS CORROSION ON CUSP UNDER FORWARD AND AFT GIRT BAR SUPPORTS. INSTALLED DOUBLERS PER AARD 53-20-00-16.
- [SDR AALA20111114TUL05](https://openairdocs.org/sdr/AALA20111114TUL05.md): Duct · failed · Nov 14, 2011 · N9413T · Doug DC983 · Air Distribution System
  > BNA - INFLIGHT PHL-DFW. CREW REPORTED TAIL TEMPERATURE OVERHEAT LIGHT ILLUMINATED. EMERGENCY DECLARED FLIGHT DIVERTED BNA LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED DUCT 1684 AND REPAIRED LEAK ON RIGHT AIR CYCLE MACHINE. SYSTEM GROUN
- [SDR AALA20101222TUL01](https://openairdocs.org/sdr/AALA20101222TUL01.md): Engine · overtemp · Dec 21, 2010 · N9413T · Doug DC983 · Engine (Turbine/Turboprop)
  > BHM INFLIGHT DFW-ATL - CREW REPORTED RIGHT ENGINE OIL TEMP INDICATION CLIMBED IN EXCESS OF 190 DEGREES. RIGHT ENGINE WAS SHUTDOWN IN FLIGHT (SINGLE ENGINE TIME 13 MINUTES). EMERGENCY DECLARED FLIGHT DIVERTED BHM LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FRO
- [SDR AALA20100908DFW01](https://openairdocs.org/sdr/AALA20100908DFW01.md): Boot · cracked · Sep 7, 2010 · N9413T · Doug DC983 · Air Distribution System
  > DFW - CREW REPORTED CABIN BEGAN TO DEPRESSURIZE DURING FLIGHT. INICIATED EMERGENCY DESCENT TO 8,000 FT. THE FLIGHT ATTENDANT REPORTED A LOUD AIR LEAK FROM THE AFT GALLEY DOOR. FLIGHT LANDED DFW WITHOUT INCIDENT. REPLACED FLEX BOOT RIGHT AIR CYCLE MACHINE.
- [SDR AALA20100722TUL11](https://openairdocs.org/sdr/AALA20100722TUL11.md): Frame · cracked · Jul 22, 2010 · N9413T · Doug DC983 · Fuselage Main, Frame
  > FRAME 1418 CRACKED AT LONGERON 2 RIGHT. INSTALLED DOUBLER IAW EA MD80-53-011690.
- [SDR AALA2009052700973](https://openairdocs.org/sdr/AALA2009052700973.md): Battery Pack · discharged · May 27, 2009 · N9413T · Doug MD83 · Emergency Lighting
  > SFO - BOTH AFT LEFT AND RIGHT OVERWING EXIT DOORS OVERHEAD EXIT LIGHT DIMS THEN BRIGHTENS. REPLACED BATTERY PACK AT B5-105 POSITION.
- [SDR AALA2009021100059](https://openairdocs.org/sdr/AALA2009021100059.md): Longeron · cracked · Jan 31, 2009 · N9413T · Doug DC983 · Fuselage Main, Longeron/Stringer
  > LONGERON 2 LEFT CRACKED AT STATION 1418. INSTALLED SPLICE PER AARD 53-30-00-2.
- [SDR AALA2009021100058](https://openairdocs.org/sdr/AALA2009021100058.md): Stringer · cracked · Jan 31, 2009 · N9413T · Doug DC983 · Fuselage Main, Longeron/Stringer
  > LONGERON 2 RIGHT CRACKED AT STATION 1418. INSTALLED SPLICE PER AARD 53-30-00-2.
- [SDR AALA2009020900041](https://openairdocs.org/sdr/AALA2009020900041.md): Beam · cracked · Jan 30, 2009 · N9413T · Doug DC983 · Fuselage Main, Structure
  > HORIZONTAL BEAM CRACKED UNDER INBOARD SUPPORT BOLT. THIRD BEAM UP AT FORWARD ENTRY DOOR. INSTALLED REPAIR DOUBLER IN ACCORDANCE WITH AARD 52-10-00-3.
- [SDR AALA2009020900040](https://openairdocs.org/sdr/AALA2009020900040.md): Skin · cracked · Jan 30, 2009 · N9413T · Doug DC983 · Fuselage Main, Plate/Skin
  > AFT SERVICE DOOR SKIN CRACKED AT HOLD OPEN HOOK CUTOUT. INSTALLED DOUBLER ON AFT SERVICE DOOR IN ACCORDANCE WITH SRM 52 05 00 FIGURE 54 SHEET 1.
- [SDR AALA2009020900039](https://openairdocs.org/sdr/AALA2009020900039.md): Frame · cracked · Jan 30, 2009 · N9413T · Doug DC983 · Fuselage Main, Frame
  > FRAME 1418 CRACKED AT STRINGER 2 RIGHT AT FORWARD SIDE AND AFT SIDE AT STIFFENER.
- [SDR AALA200802439A](https://openairdocs.org/sdr/AALA200802439A.md): Battery Pack · discharged · Oct 30, 2008 · N9413T · Doug MD83 · Emergency Lighting
  > SFO - AFT EMERGENCY LIGHTS ABOVE LEFT AND RIGHT AFT OVERWING ESCAPE HATCH INOPERATIVE. REPLACED BATTERY PACK FOR AFT EMERGENCY LIGHTS OVERHEAD RIGHT AND LEFT AFT OVERWING DOOR. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA200801364](https://openairdocs.org/sdr/AALA200801364.md): Battery Pack · discharged · May 22, 2008 · N9413T · Doug MD83 · Emergency Lighting
  > SFO - EMERGENCY LIGHTS AT OVERHEAD SEAT 25D AFT TO TAIL CONE INOPERATIVE. CHARGED BATTERY PACK FOR EMERGENCY LIGHT AT OVERHEAD SEAT 25D AFT TO TAIL CONE. SYSTEM GROUND CHECKED NORMAL OPERATION. (A)
- [SDR AALA200801363](https://openairdocs.org/sdr/AALA200801363.md): Connector · broken · May 22, 2008 · N9413T · Doug MD83 · Light System Wiring
  > SFO - EMERGENCY LIGHT AT SEAT 14D INOPERATIVE. REPLACED CONNECTOR FOR EMERGENCY LIGHT AT SEAT 14D. SYSTEM GROUND CHECKED NORMAL OPERATION. (A)
- [SDR AALA200800422](https://openairdocs.org/sdr/AALA200800422.md): Battery Pack · inoperative · Feb 27, 2008 · N9413T · Doug MD83 · Emergency Lighting
  > LAX - OVERWING EXTERIOR EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK AT B5 125 FOR OVERWING EXTERIOR EMERGENCY LIGHTS. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20070196](https://openairdocs.org/sdr/AALA20070196.md): Connector · disconnected · Jan 27, 2007 · N9413T · Doug MD83 · Light System Wiring
  > SFO - FOUND EMERGENCY LIGHTS AT SEAT 28D INOPERATIVE. RECONNECTED CONNECTOR FOR EMERGENCY LIGHTS AT SEAT 28D. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20060845](https://openairdocs.org/sdr/AALA20060845.md): Battery · inoperative · Oct 9, 2006 · N9413T · Doug MD83 · Emergency Equipment
  > LAS - EMERGENCY FLASHLIGHT AT FORWARD ENTRY DOOR INOPERATIVE. REPLACED FLASHLIGHT BATTERIES FOR EMERGENCY FLASHLIGHT AT FORWARD ENTRY DOOR. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20050666](https://openairdocs.org/sdr/AALA20050666.md): Battery Pack · inoperative · Oct 12, 2005 · N9413T · Doug MD83 · Emergency Lighting
  > IAH - COCKPIT AND GALLEY EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK FOR COCKPIT AND GALLEY EMERGENCY LIGHTS. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20041157](https://openairdocs.org/sdr/AALA20041157.md): Connector · disconnected · Nov 22, 2004 · N9413T · Doug MD83 · Light System Wiring
  > STL - EMERGENCY PATH LIGHTS AT SEAT 14DEF INOPERATIVE. FOUND CONNECTOR DISCONNECED AT SIDEWALL SEAT 14DEF. RECONNECTED CONNECTOR FOR EMERGENCY PATH LIGHTS AT SEAT 14DEF. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20040687](https://openairdocs.org/sdr/AALA20040687.md): Battery Pack · inoperative · Jun 29, 2004 · N9413T · Doug MD83 · Emergency Lighting
  > DFW - SEAT MOUNTED EMERGENCY ESCAPE PATH LIGHT IN AFT HALF OF CABIN INOPERATIVE. REPLACED BATTERY PACKS FOR FORWARD AND AFT SEAT MOUNTED EMERGENCY ESCAPE PATH LIGHTING. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20040334](https://openairdocs.org/sdr/AALA20040334.md): Socket · inoperative · Mar 10, 2004 · N9413T · Doug MD83 · Emergency Lighting
  > STL - EMERGENCY EXIT LIGHT AT SEAT 24D INOPERATIVE. REPLACED SOCKET FOR EMERGENCY EXIT LIGHT AT SEAT 24D. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20040321](https://openairdocs.org/sdr/AALA20040321.md): Connector · loose · Mar 5, 2004 · N9413T · Doug MD83 · Light System Wiring
  > DFW - EMERGENCY LIGHT AT SEAT ROW 19 INOPERATIVE. RESECURED CONNECTOR FOR EMERGENCY LIGHT AT SEAT ROW 19. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20040320](https://openairdocs.org/sdr/AALA20040320.md): Battery · inoperative · Mar 5, 2004 · N9413T · Doug MD83 · Emergency Lighting
  > EMERGENCY LIGHT IN TAIL CONE AREA INOPERATIVE. REPLACED BATTERY/CHARGER ASSEMBLY FOR EMERGENCY LIGHT IN TAIL CONE AREA. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20031330](https://openairdocs.org/sdr/AALA20031330.md): Light · inoperative · Nov 25, 2003 · N9413T · Doug MD83 · Emergency Lighting
  > DTW FRONT ENTRY EMERGENCY EXIT LIGHT UPPER LOCK BROKEN. REPLACED FRONT ENTRY EMERGENCY EXIT LIGHT ASSEMBLY. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR ZW0A0206402](https://openairdocs.org/sdr/ZW0A0206402.md): Acm · leaking · Jun 16, 2002 · N9413T · Doug MD83 · Cabin Cooling System
  > A BURNING ODOR WAS IN CABIN AND COCKPIT ON DESCENT. NO SMOKE. FOUND RT ACM OIL PUDDLING IN ACM OUTLET. THE NEXT STATION REPLACED THE RT ACM.
- [SDR ZW0A0202201](https://openairdocs.org/sdr/ZW0A0202201.md): Computer · Feb 21, 2002 · N9413T · Doug MD83 · Airspeed/Mach Indicator
  > THE CAPTAIN'S IAS INDICATOR FROZE AT 180 KNOTS ON CLIMB OUT. CREW MADE AN UNSCHEDULED LANDING AT MCI. REPLACED THE CAPTAIN'S AIR SPEED INDICATOR, PN 4057800-906, AND THE NUMBER 1 CADC. CHECK-C 7-29-01 STL. --CLOSED--
- [SDR ZW0A0105001](https://openairdocs.org/sdr/ZW0A0105001.md): Engine · malfunctioned · Jul 12, 2001 · N9413T · Doug DC983 · Engine (Turbine/Turboprop)
  > A LOUD NOISE WAS HEARD FROM THE LT ENGINE AND THE AIRCRAFT SHUTTERED. SMOKE APPEARED IN THE COCKPIT. ENGINE WAS SHUT DOWN AND AIRCRAFT LANDED AT SZL. EMERGENCY EVACUATION WAS ACCOMPLISHED. CHECK-C 8-10-00 STL.
- [SDR ZW0A0101603](https://openairdocs.org/sdr/ZW0A0101603.md): Light · inoperative · May 10, 2001 · N9413T · Doug DC983 · Emergency Lighting
  > THE EGRESS LIGHT AT SEAT 8D WAS INOPERATIVE DURING TEST. REPLACED THE LAMP. CHECK-C 12-3-00 JFK.
- [SDR TWAA0019701](https://openairdocs.org/sdr/TWAA0019701.md): Gcu · failed · Dec 17, 2000 · N9413T · Doug DC983 · AC Regulator
  > IN CRUISE FLIGHT WITH RT GEN INOPERATIVE THE APU GEN TRIPPED OFF LINE. THE LT GEN BECAME ERRATIC AND FAILED TO PICK UP THE LOAD, FOLLOWED BY LT AC BUS REPEATEDLY COMING ON AND OFF LINE RAPIDLY THEN COMPLETELY DROPPING OFF LINE. NO GENERATOR WOULD MAINTAIN ANY
- [SDR TWAA0002903](https://openairdocs.org/sdr/TWAA0002903.md): Cover · missing · Feb 21, 2000 · N9413T · Doug DC983 · Emergency Lighting
  > THE RED EGRESS LIGHT COVER WAS MISSING AT CABIN ROW 30. REPLACED THE RED COVER. CHECK-C 8-11-99 MCI.
- [SDR TWAA9913608](https://openairdocs.org/sdr/TWAA9913608.md): Battery · discharged · Sep 23, 1999 · N9413T · Doug DC983 · Emergency Lighting
  > THE EMERGENCY LIGHTS WERE INOPERATIVE AT ROWS 3, 5, 19, 21, AND 22. REPLACED THE LAMP, MFG PN 1315, FOR ROWS 3 AND 5, AND REPLACED THE BATTERY FOR REMAINING ROWS. CHECK-C 8-11-99 MCI.
- [SDR TWAA9910903](https://openairdocs.org/sdr/TWAA9910903.md): Skin · dented · Jul 28, 1999 · N9413T · Doug DC983 · Fuselage Main, Plate/Skin
  > DURING CHECK-C MAINT, FOUND.5 INCH BY 0.080 DEEP AND.4375 INCH LONG BY 0.076 DEEP DENTS IN SKIN AT STA 1193, LONGERON 20L. TWO DENTS WITHIN.5 INCH OF EACH OTHER. ACCOMP HFEC CHECK PER 51-00-03, PART 6 AND NO CRACKS FOUND. REPAIRED PER SRM 53-04, FIG 38 P
- [SDR TWAA9910902](https://openairdocs.org/sdr/TWAA9910902.md): Longeron · misrepaired · Jul 27, 1999 · N9413T · Doug DC983 · Fuselage Main, Plate/Skin
  > DURING CHECK-C MAINT, A 9 INCH BY 9 INCH CLASS 3 REPAIR, FOUND INSTALLED WITH BLIND FASTENERS AT STA 256, WL 209 AND LONGERON 17L, WAS DAMAGED. REPAIRED LONGERON 17L, STA 256, PER SRM 53-02 PAGE 48, FIG 18. REPAIRED CLASS 3 REPAIR PER SRM 53-04, PAGE 39 FIG
- [SDR TWAA9910707](https://openairdocs.org/sdr/TWAA9910707.md): Skin · gouged · Jul 26, 1999 · N9413T · Doug DC983 · Fuselage Main, Plate/Skin
  > DURING CHECK-C MAINT, FOUND FUSELAGE SKIN GOUGED AT STA 217, STRINGER 5L AND 6L. AN INTERIM REPAIR HAD BEEN INSTALLED PER ARA 15461. REPAIRED PER SRM 53-04, FIG 12B, SHEET 5.
- [SDR TWAA9910706](https://openairdocs.org/sdr/TWAA9910706.md): Skin · misrepaired · Jul 25, 1999 · N9413T · Doug DC983 · Fuselage Main, Plate/Skin
  > DURING CHECK-C MAINT, FOUND FUSELAGE SKIN REPAIR INSTALLED WITH BLIND FASTENERS AT STA 229 TO 245, STRINGER 18L. REPAIRED PER SRM 53-04, FIG 12B, WITH SOLID FASTENERS AND ADDING FINGER DOUBLER.
- [SDR TWAA9907606](https://openairdocs.org/sdr/TWAA9907606.md): Cover · missing · May 31, 1999 · N9413T · Doug DC983 · Emergency Lighting
  > DURING PREFLIGHT INSPECTION FOUND ESCAPE PATH LIGHTING COVER MISSING. REPLACED COVER. CC-01 9-1-98 STL.
- [SDR TWAA9905702](https://openairdocs.org/sdr/TWAA9905702.md): Cover · missing · Apr 17, 1999 · N9413T · Doug DC983 · Emergency Lighting
  > THE EGRESS LIGHTS AT AFT CABIN WAS MISSING THE COVER AND THE RED LENS. REPLACED THE COVER 0105601-003PA40, LAMP 7732, LEN 0105607-301, AND THE END PIECE 015609-001. CHECK-C 9-1-98 STL.
- [SDR TWAA9904901](https://openairdocs.org/sdr/TWAA9904901.md): Wire · loose · Apr 1, 1999 · N9413T · Doug DC983 · Light System Wiring
  > THE EGRESS LIGHT AT CABIN ROW 2 HAD WIRE LOOSE FROM THE LIGHT AND THE COVER WAS MISSING. REPLACED THE WIRE SEGMENT AND INSTALLED COVER. CHECK-C 9-1-98 STL.
- [SDR TWAA9903902](https://openairdocs.org/sdr/TWAA9903902.md): Lamp · loose · Mar 12, 1999 · N9413T · Doug DC983 · Emergency Lighting
  > FOUND EGRESS LIGHTS INOPERATIVE ON TEST AT ROW 21 TO 24, AND ROW 3. SECURED A LOOSE LIGHT SOCKET AT ROW 24, AND INSTALLED A LOOSE LAMP AT ROW 3. CHECK-C 9-1-98 STL.
- [SDR TWAA9819005](https://openairdocs.org/sdr/TWAA9819005.md): Wire · worn · Nov 29, 1998 · N9413T · Doug DC983 · Light System Wiring
  > FOUND EMERGENCY EGRESS LIGHT COVER STRIP MISSING AT CABIN ROW 17. REPLACED COVER (P/N 5778-1), AND LIGHT CABLE. CHECK -C 9-1-98 STL.

Next page: https://openairdocs.org/deregistered/N9413T-2013-09-27/reports.md?page=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 = 'N9413T' AND deregistration_id = 'N9413T-2013-09-27'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N9413T-2013-09-27/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, except the copies of manufacturers’ service documents, which belong to their rights holders.