# Service difficulty reports: N424AA, cancelled May 9, 2022

A list on [N424AA, cancelled May 9, 2022](https://openairdocs.org/deregistered/N424AA-2022-05-09.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 · 128 reports

- [SDR AALA2018081659019](https://openairdocs.org/sdr/AALA2018081659019.md): Battery Pack · discharged · Aug 14, 2018 · N424AA · Doug DC982 · Emergency Lighting
  > EMERGENCY LIGHTS VERY DIM. REPLACED FORWARD BATTERY PACK FOR EMERGENCY LIGHTS IAW MM 33-50-00.
- [SDR AALA2018062109018](https://openairdocs.org/sdr/AALA2018062109018.md): Handle · missing · Jun 17, 2018 · N424AA · Doug DC982 · Emergency Equipment
  > FORWARD L1 DOOR ASSIST HANDLE WAS MISSING. MAINTENANCE REPLACED FORWARD L1 DOOR ASSIST HANDLE HARDWARE IAW STANDARD PRACTICES AND PERFORMED SATISFACTORY OPERATIONAL CHECK.
- [SDR AALA201802209031](https://openairdocs.org/sdr/AALA201802209031.md): Cable · misrouted · Feb 15, 2018 · N424AA · Doug DC982 · Emergency Equipment
  > R1 DOOR CABLE IS ROUTED INCORRECTLY FOR CLEVIS ON EMERGENCY SLIDE BUSTLE. ADJUSTED R1 GIRT BAR CABLE IAW MM 25-62-00. OK FOR SERVICE.
- [SDR AALA201710309037](https://openairdocs.org/sdr/AALA201710309037.md): Battery · discharged · Oct 27, 2017 · N424AA · Doug DC982 · Emergency Equipment
  > AIRCRAFT WAS NOT GROUNDED. FLIGHT ATTENDANT EMERGENCY FLASHLIGHT AT THE MID GALLEY IS INOPERATIVE. REMOVED AND REPLACED FLASHLIGHT BATTERY PER AMM 25-60-00. OPERATIONAL CHECK GOOD.
- [SDR AALA201708289019](https://openairdocs.org/sdr/AALA201708289019.md): Battery · not seated · Aug 27, 2017 · N424AA · Doug DC982 · Emergency Lighting
  > AIRCRAFT WAS NOT GROUNDED. CEILING EMERGENCY EXIT LIGHTS BETWEEN ROWS 12 AND 16 ARE INOPERATIVE. RESEATED BATTERIES IN CHARGER UNIT PER AMM 33-53-00. OPERATIONAL CHECK GOOD.
- [SDR AALA201708289020](https://openairdocs.org/sdr/AALA201708289020.md): Battery · not seated · Aug 26, 2017 · N424AA · Doug DC982 · Emergency Lighting
  > AIRCRAFT WAS NOT GROUNDED. CEILING EMERGENCY EXIT LIGHTS ABOVE L2 DOOR AND FROM ROW 28 AFT ARE INOPERATIVE. RESEATED BATTERIES ON CHARGER UNITS PER AMM 33-53-00. OPERATIONAL CHECK GOOD.
- [SDR AALA201708249016](https://openairdocs.org/sdr/AALA201708249016.md): Proximity Switch · dirty · Aug 23, 2017 · N424AA · Doug DC982 · Door Warning System
  > AIRCRAFT WAS NOT GROUNDED. MID CARGO DOOR LIGHT ILLUMINATED AT TAKEOFF. REJECTED TAKEOFF AT APPROXIMATELY 50 KNOTS. CLEANED CARGO DOOR PROXIMITY SWITCH PER AMM 52-70-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20170622003](https://openairdocs.org/sdr/AALA20170622003.md): Periseal · defective · Jun 22, 2017 · N424AA · Doug DC982 · Air Distribution System
  > THE AIRCRAFT WAS GROUNDED. AFT TAIL COMPARTMENT TEMP HIGH LIGHT CAME ON DURING CLIMB OUT FL240. MEMORY ITEMS WERE COMPLETED AND THE FLIGHT DECLARED AN EMERGENCY. HIGH TEMP LIGHT WENT OUT AFTER COMPLETING QRH PROCEDURES. REMOVED AND REPLACED RT PACK DUCT CONN
- [SDR AALA201705119038](https://openairdocs.org/sdr/AALA201705119038.md): Seal · deteriorated · May 7, 2017 · N424AA · Doug DC982 · Door Windows
  > L1 CABIN DOOR ROUND WINDOW HAS MOISTURE BUILDING UP ON IT. F/A REPORTS IT IS VERY DIFFICULT TO SEE THROUGH AT GATE ARRIVAL. REMOVED AND REPLACED OUTER WINDOW PANE AND SEAL L1 DOOR MM REF 56-30-00. THE AIRCRAFT WAS GROUNDED. (SEE ALSO SDR AALA201705109019)
- [SDR AALA201705109019](https://openairdocs.org/sdr/AALA201705109019.md): Seal · deteriorated · May 7, 2017 · N424AA · Doug DC982 · Door Windows
  > L1 CABIN DOOR ROUND WINDOW HAS MOISTURE BUILDING UP ON IT. F/A REPORTS IT IS VERY DIFFICULT TO SEE THROUGH AT GATE ARRIVAL. REMOVED AND REPLACED INNER WINDOW PANE AND SEAL L1 DOOR MM REF 56-30-00. THE AIRCRAFT WAS GROUNDED. (SEE ALSO SDR AALA201705119038).
- [SDR AALA20170418005](https://openairdocs.org/sdr/AALA20170418005.md): Doubler · cracked · Apr 18, 2017 · N424AA · Doug DC982 · Fuselage Main, Plate/Skin
  > AIRCRAFT WAS IN BASE MAINTENANCE. NOSE LANDING GEAR AFT RIGHT DOOR HINGE CUTOUT HAS A SMALL CRACK. REPAIRED IAW SRM 53-05-00, EA 269216, DRAWING 5913421 AND SG09530030.
- [SDR AALA20170418003](https://openairdocs.org/sdr/AALA20170418003.md): Stop Fitting · cracked · Apr 18, 2017 · N424AA · Doug DC982 · Cargo/Baggage Doors
  > AIRCRAFT WAS IN BASE MAINTENANCE. FORWARD CARGO DOOR LOWER STOP PAD FITTING IS CRACKED AT FORWARD EDGE OF DOOR. INSTALLED NEW DOOR STOP FITTING IAW AARD 51-00-05-1 AND DRAWING 5910141.
- [SDR AALA20170322001](https://openairdocs.org/sdr/AALA20170322001.md): Sensor · faulty · Mar 21, 2017 · N424AA · Doug DC982 · Overheat Detection
  > TAIL COMP OVERHEAT LIGHT CAME ON INFLIGHT. LIGHT EXTINGUISHED WHEN PNEUMATIC CROSS FEEDS CLOSED, AIRFOIL ANTI ICE OFF AND A/C SUPPLY HP BLEED OFF. DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE WITHOUT FURTHER INCIDENT. ACCOMPLISHED MCM 36-95-14. REMOVED &
- [SDR AALA20170321008](https://openairdocs.org/sdr/AALA20170321008.md): Cover · loose · Mar 21, 2017 · N424AA · Doug DC982 · Leading Edge Devices
  > THERE IS A DISTINCT VIBRATION IN BOTH CONTROL WHEELS FROM CRUSE THRU LANDING. LANDING LIGHTS RETRACTED. MAINTENANCE FOUND LOOSE NR 2 SLAT TRACK COVER ON LEFT WING. SECURED COVER. AIRCRAFT WAS GROUNDED.
- [SDR AALA20170214002](https://openairdocs.org/sdr/AALA20170214002.md): Flashlight · inoperative · Feb 10, 2017 · N424AA · Doug DC982 · Emergency Equipment
  > AIRCRAFT WAS NOT GROUNDED. FLIGHT ATTENDANT EMERGENCY FLASHLIGHT BY L1 DOOR IS INOPERATIVE. REMOVED AND REPLACED FLASHLIGHT IAW AMM 25-60-00. OPERATIONAL CHECK GOOD.
- [SDR AALA20160921005](https://openairdocs.org/sdr/AALA20160921005.md): Overheat Sensor · faulty · Sep 20, 2016 · N424AA · Doug DC982 · Overheat Detection
  > DURING CLIMB, TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED. EMERGENCY DECLARED. LANDING UNEVENTFUL. AIRCRAFT WAS GROUNDED. MAINTENANCE ACCOMPLISHED WORK CARD 36-95-14. REMOVED AND REPLACED LEFT AND RIGHT TAIL COMPARTMENT HIGH TEMPERATURE SENSORS IAW AM
- [SDR AALA20160921004](https://openairdocs.org/sdr/AALA20160921004.md): Overheat Sensor · faulty · Sep 20, 2016 · N424AA · Doug DC982 · Overheat Detection
  > DURING CLIMB, TAIL COMPARTMENT TEMPERATURE HIGH LIGHT ILLUMINATED. EMERGENCY DECLARED. LANDING UNEVENTFUL. AIRCRAFT WAS GROUNDED. MAINTENANCE ACCOMPLISHED WORK CARD 36-95-14. REMOVED AND REPLACED LEFT AND RIGHT TAIL COMPARTMENT HIGH TEMPERATURE SENSORS IAW AM
- [SDR AALA20160821002](https://openairdocs.org/sdr/AALA20160821002.md): Bolt · missing · Aug 21, 2016 · N424AA · Doug DC982 · Landing Gear Doors
  > RIGHT MAIN LANDING GEAR INDICATOR UNSAFE (RED) WITH GEAR HANDLE IN THE UP POSITION. THE FLIGHT DECLARED AN EMERGENCY AND RETURNED TO DFW WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS GROUNDED. FOUND LOWER FAIRING FORWARD OF RIGHT HAND GEAR DOOR LOWER AFT LINK BOL
- [SDR AALA20160728001](https://openairdocs.org/sdr/AALA20160728001.md): Pin · dislodged · Jul 27, 2016 · N424AA · Doug DC982 · Escape Slide
  > L2 DOOR EVACUATION SLIDE PACK PINS PULLED OUT ON FORWARD END OF PACK. REMOVED AND REPLACED SLIDE ASSEMBLY IAW MCM CARD 25-94-17.
- [SDR AALA20160408006](https://openairdocs.org/sdr/AALA20160408006.md): Switch · faulty · Apr 6, 2016 · N424AA · Doug DC982 · Overheat Detection
  > AIRCRAFT WAS GNDED. AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT WAS OVERWEIGHT. DURING CLIMB, RECEIVED TAIL COMPARTMENT HIGH TEMP INDICATION. ACCOMPLISHED MCM CARD TAIL COMPARTMENT LEAKS CHECK WITH NO LEAKS NOTED. R & R TEMP SWITCHES IAW MCM 36
- [SDR AALA20160406014](https://openairdocs.org/sdr/AALA20160406014.md): Switch · faulty · Apr 6, 2016 · N424AA · Doug DC982 · Overheat Detection
  > AIRCRAFT WAS GNDED. AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT WAS OVERWEIGHT. DURING CLIMB, RECEIVED TAIL COMPARTMENT HIGH TEMP INDICATION. ACCOMPLISHED MCM CARD TAIL COMPARTMENT LEAKS CHECK WITH NO LEAKS NOTED. R & R TEMP SWITCHES IAW MCM 36
- [SDR AALA20150608007](https://openairdocs.org/sdr/AALA20150608007.md): Sensor · faulty · Jun 4, 2015 · N424AA · Doug DC982 · Pneumatic Indicating System
  > AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT OVERWEIGHT. RETURNED, ACFT TAIL COMPARTMENT TEMP HIGH LIGHT. DURING TAKEOFF CREW NOTED A TAIL COMPARTMENT TEMP HIGH INDICATION. ACCOMPLISHED TAIL COMPARTMENT LEAK CHECK IAW MCM 36-95-14. R & R PRESS R
- [SDR AALA20150604007](https://openairdocs.org/sdr/AALA20150604007.md): Regulator Valve · leaking · Jun 4, 2015 · N424AA · Doug DC982 · Pneumatic Distribution System
  > AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT OVERWEIGHT. RETURNED, ACFT TAIL COMPARTMENT TEMP HIGH LIGHT. DURING TAKEOFF CREW NOTED A TAIL COMPARTMENT TEMP HIGH INDICATION. ACCOMPLISHED TAIL COMPARTMENT LEAK CHECK IAW MCM 36-95-14. R & R PRESS R
- [SDR AALA20150307009](https://openairdocs.org/sdr/AALA20150307009.md): Generator · faulty · Mar 7, 2015 · N424AA · Doug DC982 · AC Generator-Alternator
  > AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT WAS NOT OVERWEIGHT. LT GEN OFF BUS LIGHT & LT CSD OIL PRESS LOW ON CLIMB OUT. REPLACED NR 1 ENG GEN IAW AMM 24-20-01.
- [SDR AALA20141129007](https://openairdocs.org/sdr/AALA20141129007.md): Battery Pack · discharged · Nov 28, 2014 · N424AA · Doug DC982 · Emergency Lighting
  > EMERGENCY EXIT LIGHTS ABOVE RT & LT FWD HATCH DOORS INOPERATIVE. R & R BATTERY PACK. SYS CHECKED NORMAL.
- [SDR AALA20140603004](https://openairdocs.org/sdr/AALA20140603004.md): Skin · cracked · Jun 3, 2014 · N424AA · Doug DC982 · Fuselage Main, Plate/Skin
  > CRACKS IN SKIN AT FWD SERVICE DOOR CUT OUT, FWD UPPER CORNER. INSTALLED DOUBLER TRIPLER IAW DWG SR09530172.
- [SDR AALA20140602002](https://openairdocs.org/sdr/AALA20140602002.md): Angle · corroded · Jun 2, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > CUSP T ANGLE FROM STATIONS 170 TO 180 CORRODED. REMOVED & INSTALLED NEW CUSP T ANGLE.
- [SDR AALA20140531010](https://openairdocs.org/sdr/AALA20140531010.md): Doubler · corroded · May 31, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > CORROSION ON DOUBLER ON DIAPHRAGM BY FWD SERVICE DOOR FROM STATIONS 200 TO 218. INSTALLED CUSP DOUBLER FROM STATIONS 200 TO 218, OTBD SEAT TRACK NR 5 IAW AARD 53-20-00-16.
- [SDR AALA20140531009](https://openairdocs.org/sdr/AALA20140531009.md): Structure · corroded · May 31, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > HEAVY CORROSION UNDER GALLEY NR 1 DRAIN PAN. INSTALLED DOUBLER UNDER GALLEY NR 1 DRAIN PAN IAW AARD 53-20-00-16.
- [SDR AALA20140531008](https://openairdocs.org/sdr/AALA20140531008.md): Cusp Web · cracked · May 31, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > RIGHT CUSP CRACKED FROM STATIONS 200 TO 224 UNDER SEAT TRACK NR 6. INSTALLED NEW CUSP SHEET FROM STATIONS 218 TO 237 IAW SRM 51-30-05, SRM 51-30-02 & DWG 9930538.
- [SDR AALA20140531004](https://openairdocs.org/sdr/AALA20140531004.md): Structure · damaged · May 31, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > FASTENER HOLES AT STATIONS 190 TO 195 AT RBL DAMAGED. INSTALLED SUBFLOOR DOUBLER FROM STATIONS 160 TO 200 IAW AARD 53-20-00-16.
- [SDR AALA20140530010](https://openairdocs.org/sdr/AALA20140530010.md): Pan · worn · May 30, 2014 · N424AA · Doug DC982 · Cargo/Baggage Doors
  > AFT CARGO DOOR OUTER PAN WORN AT NR 4 BEAM FWD STOP PAD. INSTALLED DOUBLER IAW AARD 52-30-00-1.
- [SDR AALA20140530001](https://openairdocs.org/sdr/AALA20140530001.md): Mount · corroded · May 30, 2014 · N424AA · Doug DC982 · Fuselage Main, Attach Fittings
  > GALLEY MOUNT IN FWD END OF NR 6 SEAT TRACK CORRODED. REPLACED NEW GALLEY MOUNT IN FWD END OF NR 6 SEAT TRACK IAW AARD 51-00-05-1.
- [SDR AALA20140529015](https://openairdocs.org/sdr/AALA20140529015.md): Seat Track · corroded · May 29, 2014 · N424AA · Doug DC982 · Fuselage, Seat/Cargo Attach Fittings
  > CABIN SEAT TRACK NR 6 FROM STATIONS 36 TO 367 CORRODED. REPLACED CABIN SEAT TRACK NR 6 FROM STATIONS 36 TO 367 IAW SRM 53-05-00-001 FIGURE 4F.
- [SDR AALA20140529001](https://openairdocs.org/sdr/AALA20140529001.md): Intercostal · cracked · May 29, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > INTERCOSTAL ON CABIN FLOOR ON CTR LINE FRAME 1287 TO 1309 CRACKED. R & R INTERCOSTAL.
- [SDR AALA20140528009](https://openairdocs.org/sdr/AALA20140528009.md): Seat Track · corroded · May 28, 2014 · N424AA · Doug DC982 · Fuselage, Seat/Cargo Attach Fittings
  > SEAT TRACK NR 4 FROM STATIONS 1031 TO 1309 CORRODED. INSTALL NEW SEAT TRACK IAW AARD 51-00-05-1 & AARD 51-00-05.
- [SDR AALA20140528008](https://openairdocs.org/sdr/AALA20140528008.md): Seat Track · corroded · May 28, 2014 · N424AA · Doug DC982 · Fuselage, Seat/Cargo Attach Fittings
  > SEAT TRACK NR 1 FROM STATIONS 1174 TO 1309 CORRODED. INSTALLED NEW SERVICEABLE SEAT TRACK IAW AMM 53-40-01-2.
- [SDR AALA20140526010](https://openairdocs.org/sdr/AALA20140526010.md): Membrane · cracked · May 26, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > CRACK IN THE CUSP MEMBRANE AT STATION 164, 2 INCHES RT OF ACFT CENTERLINE APPROXIMATELY 1/2 INCH LONG IN THE INBD & OTBD DIRECTION. INSTALLED DOUBLER IAW EA MD80-53-026939.
- [SDR AALA20140523008](https://openairdocs.org/sdr/AALA20140523008.md): Pan · cracked · May 23, 2014 · N424AA · Doug DC982 · Emergency Exits
  > RIGHT AFT OVERWING EXIT DOOR CRACKED AT NR 1 STOP FITTING. INSTALLED DOUBLER IAW SRM 52-05-00-01.
- [SDR AALA20140523007](https://openairdocs.org/sdr/AALA20140523007.md): Pan · cracked · May 23, 2014 · N424AA · Doug DC982 · Emergency Exits
  > RIGHT AFT OVERWING EXIT DOOR CRACKED AT THE NR 12 STOP FITTING. INSTALLED DOUBLER IAW SRM 52-05-00-01.
- [SDR AALA20140523006](https://openairdocs.org/sdr/AALA20140523006.md): Mount · corroded · May 23, 2014 · N424AA · Doug DC982 · Fuselage, Equipment Attach Fittings
  > GALLEY MOUNT CORROSION FWD END OF SEAT TRACK NR 1 & STATION 1174. INSTALLED NEW GALLEY MOUNT TO SEAT TRACK IAW AARD 51-00-05-1 & DWG 5930566.
- [SDR AALA20140523005](https://openairdocs.org/sdr/AALA20140523005.md): Fitting · corroded · May 23, 2014 · N424AA · Doug DC982 · Fuselage Main, Frame
  > RIGHT FRAME FOOT AT STATION 200 CORRODED. INSTALLED NEW FRAME FOOT IAW SRM 51-30-05 & SRM 51-30-01.
- [SDR AALA20140522019](https://openairdocs.org/sdr/AALA20140522019.md): Pan · cracked · May 22, 2014 · N424AA · Doug DC982 · Emergency Exits
  > LEFT AFT OVERWING EXIT DOOR PAN CRACKED AT AFT UPPER STOP. INSTALLED DOUBLER IAW SRM 52-05-00-01.
- [SDR AALA20140522017](https://openairdocs.org/sdr/AALA20140522017.md): Pan · cracked · May 22, 2014 · N424AA · Doug DC982 · Emergency Exits
  > LEFT OVERWING EXIT DOOR PAN CRACKED AT FWD UPPER STOP. INSTALLED DOUBLER IAW SRM 52-05-00-01.
- [SDR AALA20140522015](https://openairdocs.org/sdr/AALA20140522015.md): Pan · cracked · May 22, 2014 · N424AA · Doug DC982 · Emergency Exits
  > RIGHT OVERWING EXIT DOOR PAN AT UPPER AFT STOP FITTING CRACKED IN RADIUS. INSTALLED DOUBLER IAW SRM 52-05-00-001 FIGURE 51 & EA COMP-52-035000.
- [SDR AALA20140522010](https://openairdocs.org/sdr/AALA20140522010.md): Cusp Web · cracked · May 22, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > RIGHT CUSP CRACKED FROM STATIONS 903 TO 905. INSTALLED DOUBLER IAW AARD 53-20-00-16.
- [SDR AALA20140521009](https://openairdocs.org/sdr/AALA20140521009.md): Frame · cracked · May 21, 2014 · N424AA · Doug DC982 · Fuselage Main, Frame
  > OVERWING FRAME AT STATIONS 886 CRACKED. REMOVED & INSTALLED NEW FRAME.
- [SDR AALA20140521007](https://openairdocs.org/sdr/AALA20140521007.md): Cusp Web · corroded · May 21, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > CORROSION ON THE LT CUSP INBD OF SEAT TRACK NR 1 & STATION 1176. INSTALLED CUSP DOUBLER IAW AARD 53-20-00-16.
- [SDR AALA20140521006](https://openairdocs.org/sdr/AALA20140521006.md): Cusp Web · cracked · May 21, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > RIGHT CUSP CRACKED UNDER SEAT TRACK NR 6 AT STATION 804. INSTALLED NEW RT CUSP SHEET FROM STATIONS 788 TO 807 IAW AARD 51-00-05-1, AARD 53-20-00-16 & DAC 9930538.
- [SDR AALA20140519005](https://openairdocs.org/sdr/AALA20140519005.md): Cusp Web · cracked · May 19, 2014 · N424AA · Doug DC982 · Fuselage Miscellaneous Structure
  > LEFT CUSP CRACKED AT STATION 808 OTBD OF SEAT TRACK NR 1. INSTALLED DOUBLER IAW AARD 53-20-00-16.

Next page: https://openairdocs.org/deregistered/N424AA-2022-05-09/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 = 'N424AA' AND deregistration_id = 'N424AA-2022-05-09'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N424AA-2022-05-09/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.