# Service difficulty reports: N77421, cancelled Jul 17, 2013

A list on [N77421, cancelled Jul 17, 2013](https://openairdocs.org/deregistered/N77421-2013-07-17.md).

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

- [SDR AALA20100927TUL04](https://openairdocs.org/sdr/AALA20100927TUL04.md): Lens · missing · Sep 24, 2010 · N77421 · Doug DC982 · Emergency Lighting
  > EMERGENCY LIGHT AT SEAT 15D IS MISSING LENS. REPLACED LENS FOR EMERGENCY LIGHT AT SEAT 15D. OPS CHECKS NORMAL.
- [SDR AALA20100926DFW03](https://openairdocs.org/sdr/AALA20100926DFW03.md): Light · inoperative · Sep 24, 2010 · N77421 · Doug DC982 · Emergency Lighting
  > EMERGENCY LIGHT AT SEAT 15D IS INOPERATIVE. REPLACED LAMP FOR EMERGENCY LIGHT AT SEAT 15D. OPS CHECKS NORMAL.
- [SDR AALA20100223TUL02](https://openairdocs.org/sdr/AALA20100223TUL02.md): Controller · faulted · Feb 22, 2010 · N77421 · Doug DC982 · Brake Anti-Skid Section
  > IAD - INFLIGHT DFW-DCA. CREW REPORTED ANTI-SKID INOPERTAIVE LIGHT ILLUMINATED. FLIGHT DIVERTED IAD LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED ANTI-SKID CONTROLLER. SYSTEM GROUND CHECK NORMAL OPERATION.
- [SDR AALA20091222TUL06](https://openairdocs.org/sdr/AALA20091222TUL06.md): Bracket · corroded · Dec 22, 2009 · N77421 · Doug DC982 · Fuselage Miscellaneous Structure
  > FORWARD CABIN HAS CORROSION AT G-1 GALLEY, FORWARD INBOARD SUBFLOOR BRACKET AT STATION 160. INSTALLED FLOORBEAM I ANGLE REPAIR PER SRM 53-05-00 FIG 20A AND AARD 53-00-00-06.
- [SDR AALA20091222TUL05](https://openairdocs.org/sdr/AALA20091222TUL05.md): Pan · corroded · Dec 22, 2009 · N77421 · Doug DC982 · Fuselage Miscellaneous Structure
  > CORROSION ON PAN ALONG THE FORWARD CARGO DOOR THRESHOLD. INSTALLED NEW DOOR PAN PER SRM 53-05 FIG 44.
- [SDR AALA20091221TUL08](https://openairdocs.org/sdr/AALA20091221TUL08.md): Pan · corroded · Dec 21, 2009 · N77421 · Doug DC982 · Fuselage Miscellaneous Structure
  > FORWARD CARGO DOOR CUTOUT THRESHOLD PAN CORRODED. REMOVED AND REPLACED DOOR JAMB PAN AND SPLICE PLATES PER SRM 53-05-00 FIGURE 44.
- [SDR AALA20091221TUL07](https://openairdocs.org/sdr/AALA20091221TUL07.md): Flap · damaged · Dec 21, 2009 · N77421 · Doug DC982 · Trailing Edge Flaps
  > AIRCRAFT FLAP DAMAGED DUE TO IMPACT. REMOVED DAMAGED SECTION OF FIBERGLASS TRAILING EDGE AND SPLICED IN NEW SECTION BOTH INBOARD AND OUTBOARD ENDS UNDER SRM 57-03-00.
- [SDR AALA20091221TUL06](https://openairdocs.org/sdr/AALA20091221TUL06.md): Longeron · cracked · Dec 21, 2009 · N77421 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > FORWARD CABIN HAS A CRACK AT LONGERON 3 LEFT STATION 160. INSTALLED LONGERON SPLICE AND END FITTING PER SRM 53-02-00 FIGURE 18.
- [SDR AALA20091221TUL05](https://openairdocs.org/sdr/AALA20091221TUL05.md): Longeron · cracked · Dec 21, 2009 · N77421 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > FORWARD CABIN HAS A CRACK AT LONGERON 3 LEFT, STATION 200. INSTALLED LONGERON SPLICE AND END FITTING PER SRM 53-02-00 FIG 18.
- [SDR AALA20091221TUL04](https://openairdocs.org/sdr/AALA20091221TUL04.md): Longeron · cracked · Dec 21, 2009 · N77421 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > FORWARD CABIN HAS A CRACK AT LONGERON 4 LEFT STATION 200. INSTALLED LONGERON SPLICE PER SRM 53-02-00 FIGURE 18.
- [SDR AALA20091221TUL03](https://openairdocs.org/sdr/AALA20091221TUL03.md): Membrane · corroded · Dec 21, 2009 · N77421 · Doug DC982 · Fuselage Miscellaneous Structure
  > CORROSION ON SUB FLOOR STATION 148 AT RIGHT BUTTLINE 8. INSTALLED 7075 T-6 DOUBLER AS PER AARD 53-20-00-16.
- [SDR AALA20091220TUL01](https://openairdocs.org/sdr/AALA20091220TUL01.md): Beam · cracked · Dec 20, 2009 · N77421 · Doug DC982 · Passenger/Crew Doors
  > FORWARD ENTRY DOOR NUMBER FIVE BEAM CRACKED IN RADIUS FORWARD SIDE. STOPPED DRILLED AND INSTALLED DOUBLER PER SRM 52-05-00 FIG 31.
- [SDR AALA20091218TUL21](https://openairdocs.org/sdr/AALA20091218TUL21.md): Frame · cracked · Dec 18, 2009 · N77421 · Doug DC982 · Fuselage Main, Frame
  > CRACK IN FRAME STATION 1497 AT 4 O`CLOCK POSITION. INSTALLED DOUBLER PER ENGINEERING AUTHORIZATION 53-008466, DATED 12/18/09.
- [SDR AALA20091218TUL20](https://openairdocs.org/sdr/AALA20091218TUL20.md): Longeron · cracked · Dec 18, 2009 · N77421 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > CRACK IN LONGERON 2 LEFT SIDE AT STATION 160. REPLACED LONGERON PER SRM 53-02-00 FIG 18.
- [SDR AALA20091217TUL04](https://openairdocs.org/sdr/AALA20091217TUL04.md): Longeron · cracked · Dec 17, 2009 · N77421 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > LONGERON 3 LEFT CRACKED AT STATION 160. ACCOMPLISHED SPLICE REPAIR UNDER SRM 53-02-00 FIG 18.
- [SDR AALA20091217TUL01](https://openairdocs.org/sdr/AALA20091217TUL01.md): Cusp Web · cracked · Dec 17, 2009 · N77421 · Doug DC982 · Fuselage Miscellaneous Structure
  > THREE EACH CRACKS AT LEFT CUSP STATION 218 TO 225. REPLACED CUSP UNDER AARD 53-20-00-16.
- [SDR AALA20091216TUL13](https://openairdocs.org/sdr/AALA20091216TUL13.md): Casting · cracked · Dec 16, 2009 · N77421 · Doug DC982 · Wing Spar
  > LEFT WING LEADING EDGE FRONT SPAR FRONT SIDE CASTING CRACKED AT STATION XRS 240. NEW CASTING INSTALLED PER SRM 51-30-05.
- [SDR AALA20091215TUL05](https://openairdocs.org/sdr/AALA20091215TUL05.md): Cusp Web · cracked · Dec 15, 2009 · N77421 · Doug DC982 · Fuselage Miscellaneous Structure
  > RIGHT CUSP CRACKED AT STATION 1244. REPAIRED PER AARD 53-20-00-16.
- [SDR AALA20091214TUL10](https://openairdocs.org/sdr/AALA20091214TUL10.md): Skin · damaged · Dec 14, 2009 · N77421 · Doug DC982 · Fuselage Main, Plate/Skin
  > SKIN DAMAGED AT WATER DRAIN AT STATION 275. REMOVED DAMAGE AND INSTALLED DOUBLER PER SRM 53-04-03 AND DRAWING SG09530002.
- [SDR AALA20091214TUL09](https://openairdocs.org/sdr/AALA20091214TUL09.md): Fitting · cracked · Dec 14, 2009 · N77421 · Doug DC982 · Cargo/Baggage Doors
  > CRACK ON FORWARD CARGO DOOR AT FORWARD EDGE MIDDLE BRACKET. REMOVED OLD FITTING, DRILLED UP AND INSTALLED NEW FITTING PER ESO 80174.
- [SDR AALA20091214TUL05](https://openairdocs.org/sdr/AALA20091214TUL05.md): Pan · cracked · Dec 14, 2009 · N77421 · Doug DC982 · Fuselage Miscellaneous Structure
  > RIGHT FORWARD UPPER WINDOW PAN TAB IS CRACKED AT STATION 946. INSTALLED DOUBLER PER AARD 53-10-00-25.
- [SDR AALA20091214TUL04](https://openairdocs.org/sdr/AALA20091214TUL04.md): Pan · cracked · Dec 14, 2009 · N77421 · Doug DC982 · Fuselage Miscellaneous Structure
  > RIGHT FORWARD UPPER WINDOW PAN TAB IS CRACKED AT STATION 927. INSTALLED DOUBLER PER AARD 53-10-00-25.
- [SDR AALA20091214TUL02](https://openairdocs.org/sdr/AALA20091214TUL02.md): Skin · dented · Dec 14, 2009 · N77421 · Doug DC982 · Fuselage Main, Plate/Skin
  > FOUND 2 DENTS IN SKIN AT STATION 235 BETWEEN LONGERON 18 LEFT AND 17 LEFT. REPAIRED PER SRM 53-04 FIG 12B.
- [SDR AALA20091211TUL05](https://openairdocs.org/sdr/AALA20091211TUL05.md): Rib · cracked · Dec 11, 2009 · N77421 · Doug DC982 · Leading Edge Devices
  > NUMBER 15 LEADING EDGE SLAT RIB SHOWS CRACK INDICATION AT INBOARD SIDE LEFT WING OUTBOARD SLAT. REPLACED CRACKED RIB AT OUTBOARD NUMBER 15 POSITION, LEFT NUMBER 5 SLAT PER ESO 80117.
- [SDR AALA200802123](https://openairdocs.org/sdr/AALA200802123.md): Pin · pulled · Aug 18, 2008 · N77421 · Doug DC982 · Escape Slide
  > ATL FORWARD ENTRY DOOR SLIDE PINS WERE PULLED. REPLACED SLIDE AT FORWARD ENTRY DOOR. SYSTEM GROUND CHECKED NORMAL OPS.
- [SDR AALA20070915](https://openairdocs.org/sdr/AALA20070915.md): Battery Pack · inoperative · May 22, 2007 · N77421 · Doug DC982 · Emergency Lighting
  > LGA - EMERGENCY LIGHT AT OVERWING FORWARD POSITION INOPERATIVE. REPLACED BATTERY PACK IN OVERHEAD BIN FOR EMERGENCY LIGHT AT OVERWING FORWARD POSITION.
- [SDR AALA20070914](https://openairdocs.org/sdr/AALA20070914.md): Battery Pack · inoperative · May 22, 2007 · N77421 · Doug DC982 · Emergency Lighting
  > LGA - EMERGENCY LIGHT AT OVERHEAD SEATS 20DEF INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY LIGHT AT OVERHEAD SEATS 20DEF. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20070885](https://openairdocs.org/sdr/AALA20070885.md): Battery Pack · inoperative · May 18, 2007 · N77421 · Doug DC982 · Emergency Lighting
  > BOS - EMERGENCY EXIT SIGN LIGHT AT UPPER FORWARD OVERWING INOPERATIVE. REPLACED BATTERY PACK FOR EMERGENCY EXIT SIGN LIGHT AT UPPER FORWARD OVERWING. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20050692](https://openairdocs.org/sdr/AALA20050692.md): Manifold · defective · Oct 19, 2005 · N77421 · Doug DC982 · Cabin Cooling System
  > JAX - AFTER TAKEOFF SMOKE IN CABIN. TURNED OFF PACK DURING APPROACH AND SMOKE DISSIPATED. LANDED JAX NO INCIDENT. REPLACED ELEVATOR POWER MANIFOLD AND COALESCER BAGS. CONDUCTED PACK BURN. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20041008](https://openairdocs.org/sdr/AALA20041008.md): Wire · disconnected · Sep 30, 2004 · N77421 · Doug DC982 · Light System Wiring
  > EMERGENCY LIGHT AT TAIL COMPARTMENT SLIDE HANDLE INOPERATIVE. RESPLICED WIRES FOR EMERGENCY LIGHT AT TAIL COMPARTMENT SLIDE HANDLE. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20040775](https://openairdocs.org/sdr/AALA20040775.md): Battery Pack · inoperative · Jul 25, 2004 · N77421 · Doug DC982 · Emergency Lighting
  > DFW - TAIL COMPARTMENT WALKWAY EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK FOR TAIL WALKWAY EMERGENCY LIGHTS. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20021477](https://openairdocs.org/sdr/AALA20021477.md): Connector · damaged · Oct 18, 2002 · N77421 · Doug DC982 · Emergency Lighting
  > DFW - DURING OVERNIGHT MAINTENANCE, LEFT AFT OVERWING EMERGENCY EXIT LIGHTS INTERMITTENT. REPAIR LEFT AFT OVERWING EMERGENCY EXIT LIGHTS CONNECTOR. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA20020562](https://openairdocs.org/sdr/AALA20020562.md): Light · loose · Apr 30, 2002 · N77421 · Doug DC982 · Emergency Lighting
  > DURING OVERNIGHT MAINTENANCE, FORWARD LEFT HAD OVERWING EMERGENCY EXIT LIGHT DIM. SECURED GROUND ON FORWARD LEFT HAND OVERWING EMERGENCY EXIT LIGHT. SYSTEM GROUND CHECKED NORMAL OPERATION.
- [SDR AALA20020335](https://openairdocs.org/sdr/AALA20020335.md): Wire · loose · Mar 23, 2002 · N77421 · Doug DC982 · Light System Wiring
  > DFW - DURNG OVERNIGHT MAINTENANCE, FORWARD OVERHEAD EMERGENCY EXIT LIGHT INTERMITTENT. TIGHTENED EMERGENCY EXIT LIGHT WIRES ON BATTERY. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA20020227](https://openairdocs.org/sdr/AALA20020227.md): Light · inoperative · Mar 6, 2002 · N77421 · Doug DC982 · Emergency Lighting
  > DFW - DURING OVERNIGHT MAINTENANCE, EMERGENCY EXIT CAT WALK SIDEWALL MARKERS INOPERATIVE. REPLACED EMERGENCY EXIT CAT WALK SIDEWALL MARKERS WIRE SPLICES. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA20011808](https://openairdocs.org/sdr/AALA20011808.md): Connector · loose · Sep 23, 2001 · N77421 · Doug DC982 · Light System Wiring
  > DFW - DURING OVERNIGHT MAINTENANCE, OVERWING EMERGENCY EXIT LIGHT INOPERATIVE. RESECURED EMERGENCY EXIT LIGHT CONNECTOR. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA20011668](https://openairdocs.org/sdr/AALA20011668.md): Battery Pack · inoperative · Aug 20, 2001 · N77421 · Doug DC982 · Emergency Lighting
  > BDL - FOUND DURING OVERNIGHT MAINTENANCE, EMERGENCY EXIT PATH LIGHTING FROM ROW 20 THROUGH 31 INOPERATIVE. REPLACED BATTERY PACK. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA20011031](https://openairdocs.org/sdr/AALA20011031.md): Battery Pack · discharged · May 16, 2001 · N77421 · Doug DC982 · Emergency Lighting
  > ORD - DURING OVERNIGHT MAINTENANCE, AFT LEFT SIDE EMERGENCY EXIT ESCAPE PATH LIGHTS DIM. REPLACED BATTERY PACK FOR AFT LEFT SIDE EMERGENCY EXIT ESCAPE PATH LIGHTS. SYSTEM GROUND CHECK NORMAL OPERATION. (M)
- [SDR AALA20010504](https://openairdocs.org/sdr/AALA20010504.md): Wire · broken · Mar 15, 2001 · N77421 · Doug DC982 · Light System Wiring
  > RDU - DURING OVERNIGHT MAINTENANCE, LEFT SIDE OVERWING EMERGENCY EXIT LIGHT DIM. REPAIRED EMERGENCY EXIT LIGHT GROUND WIRE. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA20001983](https://openairdocs.org/sdr/AALA20001983.md): Light · inoperative · Nov 29, 2000 · N77421 · Doug DC982 · Emergency Lighting
  > DFW - DURING OVERNIGHT MAINTENANCE, EMERGENCY EXIT LIGHT AT SEAT 26DEF INOPERATIVE. REPLACED EMERGENCY EXIT LIGHT ASSEMBLY AT SEAT 26DEF. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA20001786](https://openairdocs.org/sdr/AALA20001786.md): Skin · corroded · Oct 26, 2000 · N77421 · Doug DC982 · Fuselage Main, Plate/Skin
  > TUL - MINOR CORROSION AROUND ANTENNA FASTENER ATTACH HOLE IN FUSELAGE SKIN AND ALSO DENT SHOWING EDGE OF ANTENNA DOUBLER. BLENDED MINOR GOUGES AND REMOVED MINOR CORROSION, TREATED WITH ALODINE. DENT IS COND II PER SRM 53-04 FMR MADE FOR REPAIR AT NEXT HEAVY
- [SDR AALA991365](https://openairdocs.org/sdr/AALA991365.md): Light · inoperative · Sep 9, 1999 · N77421 · Doug DC982 · Emergency Lighting
  > DFW - DURING OVERNIGHT MAINTENANCE, EMERGENCY EXIT FLOOR PATH MARKER LIGHT AT AFT GALLEY INOPERATIVE. REPLACED EMERGENCY EXIT FLOOR PATH MARKER LIGHT AT AFT GALLEY. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA990872](https://openairdocs.org/sdr/AALA990872.md): Wire · broken · Jun 15, 1999 · N77421 · Doug DC982 · Light System Wiring
  > DFW - DURING OVERNIGHT MAINTENANCE, EMERGENCY EXIT FLOOR PATH LIGHTS IN FORWARD SECTION OF COACH INOPERATIVE. REPAIRED WIRING ON EMERGENCY EXIT FLOOR PATH LIGHTS BETWEEN FIRST CLASS AND COACH. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)
- [SDR AALA990461](https://openairdocs.org/sdr/AALA990461.md): Wire · chafed · Mar 31, 1999 · N77421 · Doug DC982 · Electrical Power System Wiring
  > STL - FLT 2257 - NEAR TOP OF CLIMB, CREW HEARD A LOUD POP AND SAW A FLASH OF LIGHT FROM THE EPC CIRCUIT BREAKER PANEL. NO BREAKERS WERE TRIPPED. MINUTES LATER ANOTHER POP AND FLASH CAME FROM THE EPC CIRCUIT BREAKER PANEL. AN ACRID SMELL OF BURNING INSULATION
- [SDR AALA981469](https://openairdocs.org/sdr/AALA981469.md): Light · inoperative · Aug 3, 1998 · N77421 · Doug DC982 · Emergency Lighting
  > DFW - DURING OVERNIGHT CHECK, EMERGENCY EXIT FLOOR PATH LIGHTS BY AFT ENTRY DOOR INOPERATIVE. REPAIRED WIRE ON EMERGENCY EXIT FLOOR PATH LIGHT STRIP. SYSTEM GROUND CHECKED NORMAL. (M)
- [SDR AALA980186](https://openairdocs.org/sdr/AALA980186.md): Light · defective · Jan 21, 1998 · N77421 · Doug DC982 · Emergency Lighting
  > PHX - DURING OVERNIGHT CHECK, DISCOVERED EMERGENCY FLOOR LIGHTING NEAR PASSENGER SEAT 20DEF INOPERATIVE. REPLACED EMERGENCY FLOOR LIGHT STRIP AT PASSENGER SEAT 20DEF. SYSTEM GROUND CHECKED, NORMAL OPERATION. (X)
- [SDR AALA971433](https://openairdocs.org/sdr/AALA971433.md): Light · defective · Aug 8, 1997 · N77421 · Doug DC982 · Emergency Lighting
  > DFW - DURING OVERNIGHT CHECK, AFT SIDEWALL EMERGENCY LIGHT IN AFT STAIRWAY INOPERATIVE. REPLACED AFT SIDEWALL EMERGENCY LIGHT IN AFT STAIRWAY. SYSTEM GROUND CHECKED NORMAL OPERATION. (M)

## 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 = 'N77421' AND deregistration_id = 'N77421-2013-07-17'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N77421-2013-07-17/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.