# Service difficulty reports: N7550

A list on [N7550](https://openairdocs.org/aircraft/N7550.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 3 · 127 reports

- [SDR AALA201803209010](https://openairdocs.org/sdr/AALA201803209010.md): Window · delaminated · Mar 18, 2018 · N7550 · Doug DC982 · Flight Compartment Windows
  > FIRST OFFICERS WINDSHIELD IS DELAMINATED AT THE BOTTOM, MEASURING APPROXIMATELY 2.75 INCHES FROM BOTTOM OF THE WINDSHIELD OUTER GLASS PLY. NOT ACCEPTABLE, AREA GREATER THAN 075 INCH OF DELAMINATION. GREATER THAN ALLOWED. REMOVED AND REPLACED, AND OPS CHECK
- [SDR AALA201803069026](https://openairdocs.org/sdr/AALA201803069026.md): Generator · low pressure · Mar 2, 2018 · N7550 · Doug DC982 · AC Generator-Alternator
  > DURING CRUISE, RIGHT CONSTANT SPEED DRIVE OIL PRESSURE LOW LIGHT AND RIGHT GENERATOR OFF LIGHT CAME ON. DISCONNECTED CONSTANT SPEED DRIVE IAW QUICK REFERENCE HANDBOOK AND DIVERTED. MAINTENANCE REPLACED THE RIGHT ENGINE CONSTANT SPEED DRIVE AND GENERATOR IAW A
- [SDR AALA20180303002](https://openairdocs.org/sdr/AALA20180303002.md): Csd · low pressure · Mar 2, 2018 · N7550 · Doug DC982 · AC Generator-Alternator
  > DURING CRUISE, RIGHT CONSTANT SPEED DRIVE OIL PRESSURE LOW LIGHT AND RIGHT GENERATOR OFF LIGHT CAME ON. DISCONNECTED CONSTANT SPEED DRIVE IAW QUICK REFERENCE HANDBOOK AND DIVERTED. MAINTENANCE REPLACED THE RIGHT ENGINE CONSTANT SPEED DRIVE AND GENERATOR IAW
- [SDR AALA201710139024](https://openairdocs.org/sdr/AALA201710139024.md): Attach Bracket · broken · Oct 12, 2017 · N7550 · Doug DC982 · Escape Slide
  > R1 DOOR SLIDE BUSTLE ATTACH BRACKET IS BROKEN. REMOVED AND REPLACED THE TWO BRACKETS IAW 30-10-15. OPERATIONAL CHECKED GOOD. AIRCRAFT WAS GROUNDED.
- [SDR AALA201710139019](https://openairdocs.org/sdr/AALA201710139019.md): Attach Bracket · broken · Oct 12, 2017 · N7550 · Doug DC982 · Escape Slide
  > R1 DOOR SLIDE BUSTLE ATTACH BRACKET IS LOOSE OR BROKEN. REMOVED AND REPLACED THE TWO BRACKETS SRM 30-10-15. OPS CHECKED GOOD. AIRCRAFT WAS GROUNDED.
- [SDR AALA20171004015](https://openairdocs.org/sdr/AALA20171004015.md): Frame · worn · Oct 4, 2017 · N7550 · Doug DC982 · Fuselage Main, Frame
  > WORN AREA ON AFT ACCESSORY LEFT CANTED FRAME AT BS 1510, BETWEEN LONGERONS 25 - 27L, LOWER AFT SURFACE AT THE 7 OCLOCK POSITION DUE TO TAIL CONE RUBBING. REPAIRED THE FRAME IAW SRM 53-01-00-001, AND EA 273968.
- [SDR AALA20170831004](https://openairdocs.org/sdr/AALA20170831004.md): Longeron · cracked · Aug 31, 2017 · N7550 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > AIRCRAFT WAS IN BASE MAINTENANCE. CRACK INDICATIONS ON LONGERON 24L AT FUSELAGE STATION 200 FRAME ATTACHMENT POINT. REPAIRED LONGERON PER SRM 53-02-00.
- [SDR AALA20170831003](https://openairdocs.org/sdr/AALA20170831003.md): Longeron · cracked · Aug 31, 2017 · N7550 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > AIRCRAFT WAS IN BASE MAINTENANCE. CRACK INDICATIONS ON LONGERON 23L AT FUSELAGE STATION 200. REPAIRED LONGERON PER SRM 53-02-00.
- [SDR AALA201706289023](https://openairdocs.org/sdr/AALA201706289023.md): Battery · discharged · Jun 26, 2017 · N7550 · Doug DC982 · Emergency Lighting
  > THE AIRCRAFT WAS NOT GROUNDED. WITH A/C POWER OFF THE AFT INTERIOR EMERGENCY LIGHTS STAY ON. REMOVED AND REPLACED BATTERY PAC PER MM 33-53-00. PAC B5-27. OPS CHECK NORMAL.
- [SDR AALA20170606004](https://openairdocs.org/sdr/AALA20170606004.md): Csd · failed · Jun 6, 2017 · N7550 · Doug DC982 · Alternator-Generator Drive
  > THE AIRCRAFT WAS GROUNDED. LT CSD OIL PRESSURE LIGHT CAME ON WITH A CSD OVER TEMP INDICATION. THE CREW DISCONNECTED THE LT CSD, BUT THE AC VOLTS STAYED ON AFTER DISCONNECTION. THE SECOND ATTEMPT TO DISCONNECT THE CSD RESULTED IN ZERO VOLTS AND FREQUENCY. ADDIT
- [SDR AALA20170301005](https://openairdocs.org/sdr/AALA20170301005.md): Battery Pack · discharged · Feb 27, 2017 · N7550 · Doug DC982 · Emergency Lighting
  > AIRCRAFT WAS NOT GROUNDED. EMERGENCY EXIT SIGN RIGHT AFT OVERWING FAILED TEST. REMOVED AND REPLACED POWER SUPPLY (AALA20170227021) AND BATTERY PACK AB5-3 IAW AMM 33-53-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20170227022](https://openairdocs.org/sdr/AALA20170227022.md): Battery · discharged · Feb 27, 2017 · N7550 · Doug DC982 · Emergency Lighting
  > AIRCRAFT WAS NOT GROUNDED. FIRST CLASS CEILING EMERGENCY EXIT LIGHTS FAILED TEST. REMOVED AND REPLACED BATTERY ASSEMBLY AT ROW 6 IAW AMM 33-53-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20170227021](https://openairdocs.org/sdr/AALA20170227021.md): Power Supply · inoperative · Feb 27, 2017 · N7550 · Doug DC982 · Emergency Lighting
  > AIRCRAFT WAS NOT GROUNDED. EMERGENCY EXIT SIGN RIGHT AFT OVERWING FAILED TEST. REMOVED AND REPLACED POWER SUPPLY AND BATTERY PACK AB5-3 (AALA20170301005) IAW AMM 33-53-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20170227020](https://openairdocs.org/sdr/AALA20170227020.md): Battery · discharged · Feb 27, 2017 · N7550 · Doug DC982 · Emergency Lighting
  > AIRCRAFT WAS NOT GROUNDED. CEILING EMERGENCY EXIT LIGHTS ROW 21-26 FAILED TEST. REMOVED AND REPLACED BATTERY ASSEMBLY AT ROW 25 IAW AMM 33-53-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20170227019](https://openairdocs.org/sdr/AALA20170227019.md): Battery · discharged · Feb 27, 2017 · N7550 · Doug DC982 · Emergency Lighting
  > AIRCRAFT WAS NOT GROUNDED. EMERGENCY EXIT LIGHTS ON THE LEFT AND RIGHT AFT OVERWING EXITS FAILED TEST. REMOVED AND REPLACED BATTERY ASSEMBLY AT ROW 21 IAW AMM 33-53-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20170125014](https://openairdocs.org/sdr/AALA20170125014.md): Pressure Switch · faulty · Jan 25, 2017 · N7550 · Doug DC982 · Engine Oil Indicating System
  > DURING APPROACH, CREW REPORTED THE LEFT ENGINE OIL FILTER CLOGGED LIGHT ILLUMINATED. THE LEFT ENGINE WOULD NOT GO BEYOND IDLE POWER. AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. LANDING UNEVENTFUL. REMOVED AND REPLACED OIL DIFFERENTIAL PRESSURE SWITCH IAW AM
- [SDR AALA20170119022](https://openairdocs.org/sdr/AALA20170119022.md): Battery · faulty · Jan 17, 2017 · N7550 · Doug DC982 · Emergency Lighting
  > AIRCRAFT NOT GROUNDED. EMERGENCY EXIT LIGHT IN THE MID GALLEY WAS ON WHEN THE AIRCRAFT WAS SHUTDOWN. REMOVED AND REPLACED BATTERY ASSEMBLY IAW AMM 33-53-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20170118008](https://openairdocs.org/sdr/AALA20170118008.md): Lanyard · out of position · Jan 14, 2017 · N7550 · Doug DC982 · Emergency Equipment
  > AIRCRAFT NOT GROUNDED. L1 DOOR EMERGENCY EVACUATION SLIDE LANYARD IS DISLOCATED. SECURED LANYARD IAW AMM 25-62-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20170109034](https://openairdocs.org/sdr/AALA20170109034.md): Slide · detached · Jan 6, 2017 · N7550 · Doug DC982 · Escape Slide
  > L2 DOOR EMERGENCY EVACUATION SLIDE DETACHED AND ON FLOOR. AIRCRAFT WAS GROUNDED. REMOVED AND REPLACED SLIDE IAW AM 25-62-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20160630011](https://openairdocs.org/sdr/AALA20160630011.md): Skin · cracked · Jun 30, 2016 · N7550 · Doug DC982 · Fuselage Main, Plate/Skin
  > AIRCRAFT WAS IN BASE MAINTENANCE. FUSELAGE SKIN IS CRACKED AT FRAME 1474 AND L22R. REPAIRED SKIN IAW SRM 53-01-00 AND 53-30-00-03.
- [SDR AALA20160630009](https://openairdocs.org/sdr/AALA20160630009.md): Longeron · damaged · Jun 30, 2016 · N7550 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > ACFT WAS IN BASE MAINTENANCE. OTBD AFT CORNER OF L20R AT FUSELAGE STA 1303 WAS REMOVED AROUND A FASTENER WITH NO REINFORCING REPAIR ACCOMPLISHED. REPAIRED LONGERON IAW 53-10-00-18 AND EA 261696.
- [SDR AALA20160630007](https://openairdocs.org/sdr/AALA20160630007.md): Stop Fitting · cracked · Jun 30, 2016 · N7550 · Doug DC982 · Cargo/Baggage Doors
  > FORWARD CARGO DOOR STOP CRACKED, BOTTOM AFT STOP, INSTALLED FORWARD CARGO BOTTOM AFT STOP PAD FITTING IAW DWG 5910141 AND CDK2345.
- [SDR AALA20160630006](https://openairdocs.org/sdr/AALA20160630006.md): Stop Fitting · cracked · Jun 30, 2016 · N7550 · Doug DC982 · Cargo/Baggage Doors
  > AIRCRAFT WAS IN BASE MAINTENANCE. FORWARD CARGO DOOR TOP AFT STOP PAD FITTING IS CRACKED. R & R FITTING IAW DWG 5910141.
- [SDR AALA20160630005](https://openairdocs.org/sdr/AALA20160630005.md): Stop Fitting · cracked · Jun 30, 2016 · N7550 · Doug DC982 · Cargo/Baggage Doors
  > AIRCRAFT WAS IN BASE MAINTENANCE. FORWARD CARGO DOOR 3RD FROM TOP FORWARD STOP PAD FITTING IS CRACKED. R & R FITTING IAW DWG 5910141.
- [SDR AALA20160630004](https://openairdocs.org/sdr/AALA20160630004.md): Stop Fitting · cracked · Jun 30, 2016 · N7550 · Doug DC982 · Cargo/Baggage Doors
  > AIRCRAFT WAS IN BASE MAINTENANCE. FORWARD CARGO DOOR BOTTOM FORWARD STOP PAD FITTING IS CRACKED. R & R FITTING IAW DWG 5910141.
- [SDR AALA20160630003](https://openairdocs.org/sdr/AALA20160630003.md): Stop Fitting · cracked · Jun 30, 2016 · N7550 · Doug DC982 · Cargo/Baggage Doors
  > AIRCRAFT WAS IN BASE MAINTENANCE. FORWARD CARGO DOOR TOP FORWARD STOP PAD FITTING IS CRACKED. R & R FITTING IAW DWG 5910141.
- [SDR AALA20151210002](https://openairdocs.org/sdr/AALA20151210002.md): Battery Pack · discharged · Dec 9, 2015 · N7550 · Doug DC982 · Emergency Lighting
  > REFERENCE WORK CARD 5403. EGRESS POWER SUPPLY AB5-3 FAILED TEST. REPLACED AB5-3 EGRESS LIGHT POWER SUPPLY BATTERY PACK IAW AMM 33-60-98. TESTED OK. THE ACFT WAS NOT GNDED.
- [SDR AALA20151004003](https://openairdocs.org/sdr/AALA20151004003.md): Switch · faulty · Oct 4, 2015 · N7550 · Doug DC982 · Engine Oil Indicating System
  > RIGHT ENG OIL STRAINER CLOGGING LIGHT CAME ON DURING DEPARTURE. CREW RAN THE CHECKLIST, DECLARED AN EMER & RETURNED TO FIELD. DURING THE RETURN, THE RT ENG WAS SHUT DOWN. REPLACED CLOG LIGHT SWITCH.
- [SDR AALA20150806002](https://openairdocs.org/sdr/AALA20150806002.md): Lens · broken · Aug 6, 2015 · N7550 · Doug DC982 · Emergency Lighting
  > EMERGENCY TAIL CONE HANDLE LIGHT ASSEMBLY LENS BROKEN. R & R TAIL CONE HANDLE LIGHT ASSEMBLY IAW AMM 33-53-00 & WDM 33-51-15. PERFORMED OPERATIONAL CHECK, SYS CHECKED NORMAL.
- [SDR AALA20150423007](https://openairdocs.org/sdr/AALA20150423007.md): Door · malfunctioned · Apr 23, 2015 · N7550 · Doug DC982 · Landing Gear Door Retract Section
  > NOSE GEAR DOORS DID NOT CLOSE PROPERLY AFTER TAKEOFF. NO EMERGENCY DECLARED & LANDING UNEVENTFUL. PERFORMED NOSE GEAR SWING TO VERIFY PROPER OPERATION IAW MCC 32-96-14 NOSE GEAR WITH NORMAL OPERATIONS.
- [SDR AALA20150119005](https://openairdocs.org/sdr/AALA20150119005.md): Angle · corroded · Jan 19, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > RIGHT CUSP T ANGLE CORRODED BETWEEN FS 180 & 227. R & R ANGLE IAW SRM 53-30-05, SRM 53-05-00, SRM 51-10-03, SRM 51-30-05 & AMM 20-10-15.
- [SDR AALA20150119003](https://openairdocs.org/sdr/AALA20150119003.md): Seat Track · corroded · Jan 19, 2015 · N7550 · Doug DC982 · Fuselage, Seat/Cargo Attach Fittings
  > CABIN SEAT TRACK NR 5 HAS CORROSION FROM FS 210 TO 256 ON OTBD FLANGE. REPAIRED SEAT TRACK IAW SRM 53-05-00-4F.
- [SDR AALA20150118005](https://openairdocs.org/sdr/AALA20150118005.md): Stiffener · cracked · Jan 18, 2015 · N7550 · Doug DC982 · Fuselage Main, Bulkhead
  > CRACK IN STATION 1338 BULKHEAD STIFFENER UPPER END FWD SIDE ABOVE VAULT DOOR JAMB CTR AREA. R & R STIFFENER IAW SRM 51-30-05 & 51-60-00 5 B.
- [SDR AALA20150118004](https://openairdocs.org/sdr/AALA20150118004.md): Mount Fitting · corroded · Jan 18, 2015 · N7550 · Doug DC982 · Fuselage, Equipment Attach Fittings
  > NUMBER 2 GALLEY MOUNT AT FWD END OF NR 6 SEAT TRACK IS CORRODED. R & R GALLEY MOUNT IAW AARD 51-00-05-1 & DWG 5930547.
- [SDR AALA20150118003](https://openairdocs.org/sdr/AALA20150118003.md): Seat Track · corroded · Jan 18, 2015 · N7550 · Doug DC982 · Fuselage, Seat/Cargo Attach Fittings
  > NUMBER 6 SEAT TRACK CORRODED FROM FS 215 TO 285. R & R SEAT TRACK SECTION IAW SRM 53-05-00-001 FIG 4F.
- [SDR AALA20150116029](https://openairdocs.org/sdr/AALA20150116029.md): Beam · cracked · Jan 16, 2015 · N7550 · Doug DC982 · Passenger/Crew Doors
  > FORWARD ENTRY DOOR BEAM, NR 8 BEAM IS CRACKED AT FWD END. R & R BEAM IAW AARD 51-00-05 REPAIR 1 EA COMP-52-038127 DATE 01/14/2015 & DWG 5910081.
- [SDR AALA20150116014](https://openairdocs.org/sdr/AALA20150116014.md): Diaphragm · damaged · Jan 16, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > SEVERAL RIVETS PULLED THROUGH DIAPHRAGM SHEET ON RT OF ELECTRONICS BAY BETWEEN FS 195 & 200 ABOVE PNEUMATIC DUCT. INSTALLED DOUBLER REPAIR IAW AARD 53-20-00-16.
- [SDR AALA20150115017](https://openairdocs.org/sdr/AALA20150115017.md): Cusp Web · corroded · Jan 15, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > CORROSION ON RT DIAPHRAGM DOUBLER CUSP SHEET BETWEEN STATIONS 200 & 218. INSTALLED CUSP SHEET BETWEEN STATIONS 200 & 218 IAW AARD 53-20-00-16.
- [SDR AALA20150115016](https://openairdocs.org/sdr/AALA20150115016.md): Cusp Web · corroded · Jan 15, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > CORROSION ON RT CUSP BETWEEN STATIONS 218 - 235 OUT OF LIMITS. REPLACED CUSP SHEET IAW AARD 51-00-05-01 & DWG 9930538.
- [SDR AALA20150115009](https://openairdocs.org/sdr/AALA20150115009.md): Web · cracked · Jan 15, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > SUBFLOOR CRACKED AT FS 218, 3 INCHES OTBD OF NR 4 SEAT TRACK. INSTALLED REPAIR DOUBLERS IAW AARD 53-20-00-16.
- [SDR AALA20150115007](https://openairdocs.org/sdr/AALA20150115007.md): Longeron · corroded · Jan 15, 2015 · N7550 · Doug DC982 · Fuselage Main, Longeron/Stringer
  > LONGERON 29 LT IS CORRODED AT FS 1287. SPLICE REPAIR INSTALLED IAW SRM 53-02-00-001 FIG 18.
- [SDR AALA20150114006](https://openairdocs.org/sdr/AALA20150114006.md): Cusp Web · corroded · Jan 14, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > RIGHT CUSP SHEET CORRODED BETWEEN FS 788 & 807. REMOVED & INSTALLED NEW CUSP SHEET IAW AARD 51-00-05-1.
- [SDR AALA20150114011](https://openairdocs.org/sdr/AALA20150114011.md): Cusp Web · cracked · Jan 14, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > LEFT CUSP CRACKED AT FS 241. INSTALLED CUSP DOUBLER IAW AARM 63-20-00-16.
- [SDR AALA20150113009](https://openairdocs.org/sdr/AALA20150113009.md): Cusp Web · cracked · Jan 13, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > CRACK IN CUSP UNDER HORSESHOE COLLAR AT FRAME STATION 845 LT SIDE. INSTALLED CUSP DOUBLER IAW AARD 53-20-00-16.
- [SDR AALA20150112014](https://openairdocs.org/sdr/AALA20150112014.md): Former · cracked · Jan 12, 2015 · N7550 · Doug DC982 · Leading Edge Devices
  > RIGHT WING LE NR 4 SLAT TRACK INBD FORMER IS CRACKED. INSTALLED RT WING NR 4 INBD FORMER DOUBLER & HAT BUSHING IAW WC 57-98-06.
- [SDR AALA20150109021](https://openairdocs.org/sdr/AALA20150109021.md): Channel · corroded · Jan 9, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > AFT CARGO COMPARTMENT FLOOR SUPPORT Z CHANNEL IS CORRODED BETWEEN FS 1155 & 1136 AT LONGERON 25 RT. R & R CHANNEL IAW IPC 25-52-00-03L & SRM 51-30-01.
- [SDR AALA20150109022](https://openairdocs.org/sdr/AALA20150109022.md): Stiffener · cracked · Jan 9, 2015 · N7550 · Doug DC982 · Wing Miscellaneous Structure
  > RIGHT UPPER WING STIFFENER ANGLE CRACKED IN VENT TANK ACCESS 1440C BETWEEN XW 486 & XW 536. R & R STIFFENER ON RT UPPER WING VENT TANK ACCESS 1440C BETWEEN XW 486 & XW 536.
- [SDR AALA20150109020](https://openairdocs.org/sdr/AALA20150109020.md): Doubler · cracked · Jan 9, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > TAIL VERTICAL STABILIZER HAS CRACKED DOUBLER ON RT FUSELAGE TO VERTICAL STABILIZER SKATE ANGLE AT CANT FRAME 1463. R & R ANGLE DOUBLER IAW AARD 51-00-05-01.
- [SDR AALA20150109011](https://openairdocs.org/sdr/AALA20150109011.md): Cargo Track · corroded · Jan 9, 2015 · N7550 · Doug DC982 · Fuselage, Seat/Cargo Attach Fittings
  > RIGHT FWD TIE DOWN TRACK IN AFT CARGO CORRODED BETWEEN STATIONS 1136 & 1155 ABOVE, LONGERON 27R. INSTALLED NEW TIE DOWN TRACK IAW SRM 51-30-01.
- [SDR AALA20150108013](https://openairdocs.org/sdr/AALA20150108013.md): Bracket · cracked · Jan 8, 2015 · N7550 · Doug DC982 · Fuselage Miscellaneous Structure
  > STATION 180 FLOORBEAM INTERCOSTAL ANGLE CRACKED 11 INCHES LT OF CTR LINE. INSTALLED NEW BRACKET IAW SRM 53-14-01-001 & DWG 9923484.

Next page: https://openairdocs.org/aircraft/N7550/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 = 'N7550' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N7550/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.