# Service difficulty reports: N990AX, cancelled May 23, 2017

A list on [N990AX, cancelled May 23, 2017](https://openairdocs.org/deregistered/N990AX-2017-05-23.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 · 92 reports

- [SDR ABXA080182](https://openairdocs.org/sdr/ABXA080182.md): Bulkhead · cracked · Jun 2, 2008 · N990AX · Doug DC941 · Fuselage Main, Bulkhead
  > LT LOWER CORNER OF AFT PRESSURE BULKHEAD DOOR JAMB SKIN WAS CRACKED. CAN BE SEEN FROM CATWALK. REMOVED WALKWAY, REPAIRED AREA IAW REA D953-57424 MR. RE-INSTALLED WALKWAY IAW DC9 SRM 51-30-4. (A)
- [SDR ABXA070249](https://openairdocs.org/sdr/ABXA070249.md): Battery · discharged · Jul 16, 2007 · N990AX · Doug DC941 · Emergency Lighting
  > OVERHEAD EMERGENCY LIGHTS INOPERATIVE. REPLACED EMERGENCY LIGHT POWER SUPPLY BATTERIES IAW DC9 MM 33-53-02-4-0001.
- [SDR ABXA060156](https://openairdocs.org/sdr/ABXA060156.md): Bulkhead · cracked · Mar 22, 2006 · N990AX · Doug DC941 · Fuselage Main, Bulkhead
  > RADIAL CRACK IN AFT PRESSURE BULKHEAD UPPER LEFT CORNER LOCATED 11.25" LEFT OF CENTER. STOP DRILL 250 IAW DC9 SRM 51-10-4.
- [SDR ABXA050249](https://openairdocs.org/sdr/ABXA050249.md): Battery · defective · Oct 17, 2005 · N990AX · Doug DC941 · Emergency Lighting
  > DURING PRE-DEPARTURE CHECK FOUND EMERGENCY LIGHT INOPERATIVE. REPLACED EMERGENCY LIGHT POWER SUPPLY BATTERIES IAW DC9 AMM 33-53-00.
- [SDR ABXA050183](https://openairdocs.org/sdr/ABXA050183.md): Relay · inoperative · Aug 8, 2005 · N990AX · Doug DC941 · Cabin Pressure Controller
  > LOST PRESSURIZATION AT FL 290. PRESSURE CONTROLLER WOULD NOT LOCK. DESCENDED TO 2000, GAINED MANUAL CONTROL. DECLARED AN EMERGENCY. TROUBLESHOOTING DISCOVERED R2-55 RELAY TO BE BAD, REPLACED RELAY. ALSO REPLACED R20227. REPLACED LEFT GROUND SHIFT RELAY R2-4. P
- [SDR ABXA040345](https://openairdocs.org/sdr/ABXA040345.md): Fitting · cracked · Sep 28, 2004 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > LONGERON END FITTING CRACKED AT RIGHT CANTED KEEL AREA, LONGERON 29 RIGHT. REMOVED AND REPLACED LONGERON END FITTING AT CANTED KEEL AREA IAW DC-9 SRM 51-30-5.
- [SDR ABXA040344](https://openairdocs.org/sdr/ABXA040344.md): Vane · delaminated · Sep 25, 2004 · N990AX · Doug DC941 · Trailing Edge Flaps
  > RIGHT FLAP INBOARD FIXED VANE UPPER SURFACE AT XRS 164, LOCATED BETWEEN CHAFE STRIPS WAS DELAMINATED BEYOND LIMITS OF 15 SQ INCHES. REMOVED AND REPLACED INBOARD FIXED VANE IAW DC-9 SRM.
- [SDR ABXA040343](https://openairdocs.org/sdr/ABXA040343.md): Intercostal · cracked · Sep 23, 2004 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > INTERCOSTAL END FITTING CRACKED AT STA 1072, LEFT SIDE. REPLACED FITTING IAW DC-9 SRM 51-30-5.
- [SDR ABXA040342](https://openairdocs.org/sdr/ABXA040342.md): Spar Cap · cracked · Sep 22, 2004 · N990AX · Doug DC941 · Nacelle/Pylon, Frame/Spar/Rib
  > LEFT PYLON FORWARD UPPER SPAR CAP CRACKED AT SECOND FASTENER INBOARD OF FUSELAGE LOFT LINE. REPAIRED IAW JOB CARD EA 54100011-102 AND EA 54100011-001.
- [SDR ABXA040341](https://openairdocs.org/sdr/ABXA040341.md): Crank Assy · corroded · Sep 22, 2004 · N990AX · Doug DC941 · Rudder Control System
  > RUDDER CRANK ASSEMBLY IN AFT ACCESSORY / TAIL WAS BLEEDING RUST. REPLACED RUDDER CRANK ASSEMBLY IAW DC-9 MM.
- [SDR ABXA040340](https://openairdocs.org/sdr/ABXA040340.md): Skin · corroded · Sep 21, 2004 · N990AX · Doug DC941 · Wing, Center Box
  > TEE CAP FS 618, LONGERON 30, HAD POPPED AND BULGING WEB SEEN FROM AFT SIDE. REPAIRED AREA IAW REA D953-50780 MR.
- [SDR ABXA040339](https://openairdocs.org/sdr/ABXA040339.md): Spar Cap · cracked · Sep 21, 2004 · N990AX · Doug DC941 · Wing Spar
  > RIGHT WING REAR SPAR UPPER CAP WAS CRACKED RIGHT BUTT LINE 2. REPAIRED AREA IAW DC-9 SRM.
- [SDR ABXA030048](https://openairdocs.org/sdr/ABXA030048.md): Volt Regulator · burned · Jan 27, 2003 · N990AX · Doug DC941 · AC Generator-Alternator
  > SMOKE IN UPPER CARGO COMPARTMENT AND COCKPIT. INSPECTED AND FOUND APU GENERATOR CONTROL PANEL AND APU VOLTAGE REGULATOR BURNED. INSPECTED WIRING FOR DAMAGE, NONE NOTED. INSPECTED AC BUS CONTROL FOR DAMAGE, NONE NOTED. INSPECTED FOR ANY CIRCUIT BREAKERS TRIPPED
- [SDR ABXA020228](https://openairdocs.org/sdr/ABXA020228.md): Door Frame · cracked · Oct 6, 2002 · N990AX · Doug DC941 · Fuselage Main, Structure
  > CRACK IN UPPER LEFT CORNER OF THE VENTRAL DOOR JAMB. REPAIRED AREA IAW REA D953-45345-MR.
- [SDR ABXA010616](https://openairdocs.org/sdr/ABXA010616.md): Panel · defective · Nov 28, 2001 · N990AX · Doug DC941 · Smoke Detection
  > ON SHORT FINAL AT BHM, THE NR 9 CARGO SMOKE DETECTOR STARTED BLINKING. NO SMOKE OBSERVED. REPLACED THE SMOKE DETECTOR PANEL. OPS CHECKED GOOD IAW DC-9 MM.
- [SDR ABXA010614](https://openairdocs.org/sdr/ABXA010614.md): Smoke Detector · defective · Nov 27, 2001 · N990AX · Doug DC941 · Smoke Detection
  > WHILE DESCENDING THROUGH APPROXIMATELY 18,000 FEET, THE #9 UPPER CARGO SMOKE DETECTOR BLINKED FOR APPROXIMATELY 3 MINUTES. CREW COMPLETED EMERGENCY CHECKLIST. LIGHT WENT OUT AND STAYED OUT. NO SMOKE OBSERVED. REPLACED THE #9 UPPER SMOKE DETECTOR UNIT. OPS CHEC
- [SDR ABXA010440](https://openairdocs.org/sdr/ABXA010440.md): Fitting · cracked · Jul 31, 2001 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > FRAME TO HAT CHANNEL FITTING OUTBOARD VERTICAL LEG CRACKED AT STATION 600, LONGERON 29 RIGHT. REPLACED FITTING IAW DC-9 SRM 51-30-5.
- [SDR ABXA010439](https://openairdocs.org/sdr/ABXA010439.md): Fitting · cracked · Jul 31, 2001 · N990AX · Doug DC941 · Fuselage Structure (General)
  > FRAME TO HAT CHANNEL FITTING INBOARD VERTICAL LEG CRACKED AT STATION 600, LONGERON 29 LEFT. REPLACED FITTING IAW DC-9 SRM 51-30-5.
- [SDR ABXA010438](https://openairdocs.org/sdr/ABXA010438.md): Fitting · cracked · Jul 31, 2001 · N990AX · Doug DC941 · Fuselage Structure (General)
  > LOWER AFT INBOARD FITTING CRACKED AT 1041 BULKHEAD LEFT. REPLACED FITTING IAW DC-9 SRM 51-30-1 AND 51-30-5.
- [SDR ABXA010437](https://openairdocs.org/sdr/ABXA010437.md): Frame · cracked · Jul 31, 2001 · N990AX · Doug DC941 · Fuselage Main, Frame
  > FRAME AT STATION 737 RIGHT UPPER FORWARD FLANGE WAS CRACKED. REPLACED FRAME AT STATION 737 RIGHT IAW DC-9 SRM.
- [SDR ABXA9900817](https://openairdocs.org/sdr/ABXA9900817.md): Pan · cracked · Dec 6, 1999 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > DURING C-CHECK, FOUND OUTER DOOR PAN CRACKED. REPAIRED DOOR PAN IAW ABX REA D952-34585.
- [SDR ABXA9900185](https://openairdocs.org/sdr/ABXA9900185.md): Control Cable · lack of lube · Mar 8, 1999 · N990AX · Doug DC941 · Landing Gear Retraction/Extension System
  > UNABLE TO LOWER GEAR LEVER. AFTER SEVERAL ATTEMPTS, WAS ABLE TO MOVE LEVER TO DOWN POSITION AND GEAR EXTENDED NORMALLY. SUSPECT ICE FORMED AROUND LANDING GEAR EXTENSION CONTROL CABLES. CLEANED WATER FROM AREA AND LUBRICATED CABLES.
- [SDR ABXA9800416](https://openairdocs.org/sdr/ABXA9800416.md): Shear Tie · cracked · Apr 29, 1998 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > DURING C-CHECK, FOUND SHEAR-TIE CRACKED AT STATION 1171 BETWEEN LONGERONS 2R AND 3R. REPLACED SHEAR-TIE IAW DC9 SRM 51-30-2 AND 51-30-5.
- [SDR ABXA9800415](https://openairdocs.org/sdr/ABXA9800415.md): Angle · cracked · Apr 29, 1998 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > DURING C-CHECK, FOUND ATTACH ANGLE CRACKED STATION 776, RIGHT WHEEL WELL AT LONGERON 20R. REPLACED ANGLE IAW DC9 SRM 51-30-5, 51-30-1 AND DACO DWG 9923435.
- [SDR ABXA9800414](https://openairdocs.org/sdr/ABXA9800414.md): Angle · cracked · Apr 29, 1998 · N990AX · Doug DC941 · Vertical Stabilizer
  > DURING C-CHECK, FOUND VERTICAL STABILIZER AFT SPAR, RIGHT VERTICAL Z ANGLE CRACKED. REPLACED ANGLE IAW DC9 SRM 51-30-5 AND DACO DWG 5912123.
- [SDR ABXA9800412](https://openairdocs.org/sdr/ABXA9800412.md): Angle · cracked · Apr 29, 1998 · N990AX · Doug DC941 · Vertical Stabilizer
  > DURING C-CHECK, FOUND VERTICAL STABILIZER AFT SPAR LEFT VERTICAL Z ANGLE CRACKED. REPLACED ANGLE IAW DC9 SRM 51-30-5 AND DACO DWG 5912123.
- [SDR ABXA9800401](https://openairdocs.org/sdr/ABXA9800401.md): Fitting · cracked · Apr 27, 1998 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > DURING C-CHECK, FOUND FRAME VERTICAL SUPPORT FITTING CRACKED AT STATION 1041 AND LBL 30. REPLACED FITTING IAW DC9 SRM 51-30-5.
- [SDR ABXA9701730](https://openairdocs.org/sdr/ABXA9701730.md): Battery · discharged · Oct 28, 1997 · N990AX · Doug DC941 · Emergency Lighting
  > DURING POST FLIGHT INSPECTION, EMERGENCY LIGHTS FLICKERED, WENT OUT AND THEN CAME BACK ON. REPLACED EMERGENCY LIGHTS BATTERY PACK.
- [SDR ABXA9700018](https://openairdocs.org/sdr/ABXA9700018.md): Relay · defective · Jan 24, 1997 · N990AX · Doug DC941 · Landing Gear Position and Warning
  > NOSE GEAR DOWN LOCK LIGHT GREEN REMAINS ILLUMINATED AT ALL TIMES. RECYCLED GEAR WITH THE SAME RESULTS. REPLACED RELAY R2-28, NOSE GEAR INDICATION OPS CHECKS GOOD IAW DC-9 SUPP MM 32-60-0. ALSO, REPLACED THE NOSE LANDING GEAR UPLOCK SWITCH (S1-91) AS A PRECA
- [SDR ABXA9600685](https://openairdocs.org/sdr/ABXA9600685.md): Light Plate · defective · Dec 19, 1996 · N990AX · Doug DC941 · Flight Compartment Lighting
  > SMOKE APPEARED AT COMPARATOR RESET BUTTON, LEFT AC ISOLATED AND OPERATIONS WERE NORMAL. REPLACED COMPARATOR TEST LIGHT PANEL IAW DC-9 M.M. 33-10.
- [SDR ABXA9700151](https://openairdocs.org/sdr/ABXA9700151.md): Track · chafed · Sep 25, 1996 · N990AX · Doug DC941 · Trailing Edge Flaps
  > WHILE COMPLYING WITH C INSPECTION, FOUND THE LEFT FLAP TRACK AND BUS CABLE CHAFED THROUGH, APPROXIMATELY 2 FEET FROM CABLE BALL END. REMOVED AND REPLACED LEFT HAND FLAP TRACK, CARRIAGE AND BUS CABLE IAW DC-9 MAINTENANCE MANUALS CHAPTERS 27-50-0 AND 27-50-1.
- [SDR ABXA9700895](https://openairdocs.org/sdr/ABXA9700895.md): Vane · chafed · Sep 20, 1996 · N990AX · Doug DC941 · Trailing Edge Flaps
  > THE LEFT WING INBOARD FIXED FLAP VANE WAS HEAVILY CHAFFED AND DAMAGED ON BOTH THE UPPER AND LOWER INBOARD EDGE. REPLACED ALL HONEYCOMB CORE, DOUBLERS AND SKINS IAW DC-9 SRM.
- [SDR ABXA9700152](https://openairdocs.org/sdr/ABXA9700152.md): Vane · delaminated · Sep 20, 1996 · N990AX · Doug DC941 · Trailing Edge Flaps
  > WHILE COMPLYING WITH A C INSPECTION, FOUND THE RIGHT FLAP AFT MOVEABLE VANE DELAMINATED. REMOVED AND REPLACED AFT MOVEABLE VANE IAW DC-9 MAINTENANCE MANUAL CHAPTER 27-51-02
- [SDR ABXA9700891](https://openairdocs.org/sdr/ABXA9700891.md): Vane · delaminated · Sep 19, 1996 · N990AX · Doug DC941 · Trailing Edge Flaps
  > THE RIGHT WING AFT FLAP VANE WAS DELAMINATED ON INBOARD TRAILING EDGE. REPLACED ALL HONEYCOMB CORE, DOUBLERS AND SKINS IAW DC-9 SRM.
- [SDR ABXA9700150](https://openairdocs.org/sdr/ABXA9700150.md): Door · delaminated · Aug 23, 1996 · N990AX · Doug DC941 · Landing Gear Doors
  > WHILE COMPLYING WITH C INSPECTION, FOUND THE RIGHT MAIN LANDING GEAR WING MOUNTED DOOR DISBONDED AROUND THE CRANK ARM ATTACH FITTING. REMOVED AND REPLACED RIGHT MAIN LANDING GEAR DOOR IAW DC-9 MAINTENANCE MANUAL CHAPTER 32-12-1.
- [SDR ABXA9600247](https://openairdocs.org/sdr/ABXA9600247.md): Power Supply · inoperative · Mar 11, 1996 · N990AX · Doug DC941 · Emergency Lighting
  > EMERGENCY LIGHTS COME ON AFTER AIRCRAFT POWER IS REMOVED. REPLACED EMERGENCY LIGHT POWER SUPPLY.
- [SDR ABXA9500678](https://openairdocs.org/sdr/ABXA9500678.md): Eel Switch · defective · Aug 24, 1995 · N990AX · Doug DC941 · Emergency Lighting
  > DURING SERVICE CHECK, FOUND THE EMERGENCY LIGHTS INTERMITTENT IN TEST. REPLACED THE EMERGENCY LIGHT SWITCH AND OPS CHECKED GOOD IAW DC-9 SUPP MM 33-53-00.
- [SDR ABXA9500483](https://openairdocs.org/sdr/ABXA9500483.md): Skin · damaged · Apr 18, 1995 · N990AX · Doug DC941 · Fuselage Main, Plate/Skin
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND A REPAIR AT THE AFT LOWER CORNER OF THE LEFT FORWARD ENTRY DOOR NOT IAW DC-9 SRM. REPAIRED DOOR JAMB SKIN IAW ABX REA D953-11405-MR.
- [SDR ABXA9500471](https://openairdocs.org/sdr/ABXA9500471.md): Trap Panel · cracked · Apr 12, 1995 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND THE LEFT TRAPEZOIDAL PANEL CRACKED AT THE MAIN LANDING GEAR UP STOP BUMPER. REPLACED LEFT TAPEZOIDAL PANEL IAW DC-9 SB 53-182.
- [SDR ABXA9500505](https://openairdocs.org/sdr/ABXA9500505.md): Spoiler Panel · corroded · Apr 4, 1995 · N990AX · Doug DC941 · Spoilers
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND THE LEFT OUTBOARD SPOILER PANEL DELAMINATED. REPLACED PANEL IAW DC-9 MM 27-61-1.
- [SDR ABXA9500496](https://openairdocs.org/sdr/ABXA9500496.md): Frame · cracked · Apr 4, 1995 · N990AX · Doug DC941 · Fuselage Main, Frame
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS WHILE COMPLYING WITH AD 78-07-05 AND SB 53-131, FOUND RIGHT MAIN FUSELAGE FRAME AT FS 737 CRACKED. REPAIRED RIGHT MAIN FRAME AT FS 737 IAW DC-9 SB 53-131.
- [SDR ABXA9500460](https://openairdocs.org/sdr/ABXA9500460.md): Skin · delaminated · Apr 4, 1995 · N990AX · Doug DC941 · Spoilers
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND THE LEFT OUTBOARD SPOILER PANEL DELAMINATED. REPLACED LEFT OUTBOARD SPOILER PANEL IAW DC-9 MM CHAPTER 27-61-1.
- [SDR ABXA9500459](https://openairdocs.org/sdr/ABXA9500459.md): Skin · delaminated · Apr 4, 1995 · N990AX · Doug DC941 · Spoilers
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND THE RIGHT WING INBOARD SPOILER TRAILING EDGE DELAMINATED. REPLACED RIGHT INBOARD SPOILER PANEL IAW DC-9 MM CHAPTER 27-61-1.
- [SDR ABXA9500497](https://openairdocs.org/sdr/ABXA9500497.md): Frame · cracked · Mar 31, 1995 · N990AX · Doug DC941 · Fuselage Main, Frame
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS WHILE COMPLYING WITH AD 78-07-05 AND SB 53-131, FOUND THE RIGHT FUSELAGE MAIN FRAME CRACKED AT FS 756. REPLACED RIGHT MAIN FRAME IAW DC-9 SRM 51-30-1, 51-30-2 AND SB 53-131.
- [SDR ABXA9500482](https://openairdocs.org/sdr/ABXA9500482.md): Channel · cracked · Mar 31, 1995 · N990AX · Doug DC941 · Fuselage Miscellaneous Structure
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND A MOUNT CHANNEL CRACKED AT FS 1152 AND LONGERON 14R. REPAIRED CHANNEL IAW ABX REA D925-11297 AND RE-INSTALLED CHANNEL IAW DC-9 SRM 51-30-2.
- [SDR ABXA9500481](https://openairdocs.org/sdr/ABXA9500481.md): Skin · cracked · Mar 31, 1995 · N990AX · Doug DC941 · Wing, Plate/Skin
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND THE LEFT WING LEADING EDGE CRACKED JUST INBOARD OF THE NR 5 SLAT OUTBOARD TRACK. REPAIRED CRACK IAW ABX REA D957-11284.
- [SDR ABXA9500476](https://openairdocs.org/sdr/ABXA9500476.md): Skin · gouged · Mar 31, 1995 · N990AX · Doug DC941 · Wing, Plate/Skin
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND THE RIGHT WING LOWER SKIN GOUGED AND CHAFED AT TRAILING EDGE, OUTBOARD OF THE MAIN LANDING GEAR DOOR JAMB. REPAIRED RIGHT WING LOWER SKIN IAW ABX REA D957-11255-MR.
- [SDR ABXA9500461](https://openairdocs.org/sdr/ABXA9500461.md): Doubler · corroded · Mar 31, 1995 · N990AX · Doug DC941 · Wing Miscellaneous Structure
  > DURING C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND THE RIGHT WING UPPER MAIN LANDING GEAR DOUBLER CORRODED IN PREVIOUS BLENDOUTS. REPLACED RIGHT WING UPPER MAIN LANDING GEAR DOUBLER IAW DC-9 SRM CHAPTERS 51-30-1 AND 51-30-5.
- [SDR ABXA9500356](https://openairdocs.org/sdr/ABXA9500356.md): Base · corroded · Mar 31, 1995 · N990AX · Doug DC941 · Trailing Edge Flaps
  > DURING D-CHECK ACCEPTANCE INSPECTION WHILE ACCOMPLISHING DC-9 OFF WING INSPECTION, FOUND LEVEL II CORROSION ON THE LEFT FLAP BASE FOR SPRING. REPLACED WITH NEW BASE FOR SPRING IAW DC-9 OVERHAUL MANUAL 27-50-1.
- [SDR ABXA9500479](https://openairdocs.org/sdr/ABXA9500479.md): Skin · gouged · Mar 30, 1995 · N990AX · Doug DC941 · Fuselage Main, Plate/Skin
  > WHILE COMPLYING WITH C AND D-CHECK ACCEPTANCE INSPECTIONS, FOUND A GOUGE AFT OF A PREVIOUS REPAIR AT FS 332 AND LONGERON 25R. REPAIRED SKIN IAW ABX REA D953-11278-MR.

Next page: https://openairdocs.org/deregistered/N990AX-2017-05-23/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 = 'N990AX' AND deregistration_id = 'N990AX-2017-05-23'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N990AX-2017-05-23/reports

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