# Service difficulty reports: N744AX

A list on [N744AX](https://openairdocs.org/aircraft/N744AX.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 4 · 180 reports

- [SDR ABXA20260829376](https://openairdocs.org/sdr/ABXA20260829376.md): Pump · defective · Aug 29, 2026 · N744AX · Boeing 767232 · Hydraulic Pump (Electric/Engine), Main
  > NR 1 CENTER HYDRAULIC PRIMARY PUMP FAILED (PRESS LIGHT ON) AFTER PUSH AND START. A/C RETURNED TO THE GATE (BTB) AND MTX GROUNDED ACFT. MTX REMOVED AND REPLACED #1 CNT HYD PUMP IAW B767 AMM 29-11-02 OPS CHECK GOOD AND RETURNED A/C TO SERVICE.
- [SDR ABXA20260827375](https://openairdocs.org/sdr/ABXA20260827375.md): Rudder Control · faulted · Aug 27, 2026 · N744AX · Boeing 767232 · Rudder Tab Control System
  > RUDDER RATIO EICAS MESSAGE CAME ON AFTER PUSH BACK. A/C RETURNED TO GATE (BTB) AND MTX GROUNDED A/C MTX RESET SYSTEM AND OPS CHECK IAW AMM 27-21-00. OPS CHECK GOOD.AND RETURNED A/C TO SERVICE.
- [SDR ABXA20260707309](https://openairdocs.org/sdr/ABXA20260707309.md): Smoke Detector · malfunctioned · Jul 7, 2026 · N744AX · Boeing 767232 · Smoke Detection
  > CARGO FIRE SENSOR NUMBER 3A LIGHT IS ON. REMOVED AND REPLACED 3A CARGO SMOKE DETECTOR ASSY IAW B767 AMM 26-14-01. OPS CHECK GOOD. RETURNED AC TO SERVICE.
- [SDR ABXA20260625279](https://openairdocs.org/sdr/ABXA20260625279.md): A/C Pack · inoperative · Jun 25, 2026 · N744AX · Boeing 767232 · Cabin Cooling System
  > R PACK OFF STATUS MESSAGE AFTER START. FLOW AND CHECK LIST WILL NOT WORK DESPITE RESET ATTEMPT OFF GATE. CREW RETURNED TO GATE (BTB). MTC DEFERRED IAW MEL 21-51-1-1. MX ACTION C/W PLACARDS INSTALLED. ACFT RETURNED TO SERVICE.
- [SDR ABXA20260514204](https://openairdocs.org/sdr/ABXA20260514204.md): Bracket · missing · May 14, 2026 · N744AX · Boeing 767232 · Fuselage, Equipment Attach Fittings
  > DURING MAINTENANCE POST FLT INSP, PORTABLE ELT MISSING CABLE BETWEEN RED TAB & WALL BRACKET. REPLACED ELT BRACKET ASSY. (CABLE COMBS ATTACHED TO BRACKET) I.A.W. AMM 20-11-00. A/C REMAINS NO ETOPS. A/C RETURNED TO SERVICE.
- [SDR ABXA20260512195](https://openairdocs.org/sdr/ABXA20260512195.md): Warning Message · no discrepancy · May 12, 2026 · N744AX · Boeing 767232 · Landing Gear Position and Warning
  > ON DEPARTURE OUT OF LAX DURING GEAR RETRACTION GEAR DISAGREE EICAS WITH AUDIBLE ALARM. ACCOMPLISHED THE GEAR DISAGREE NON-NORMAL. DECLARED AN EMERGENCY AND RETURNED AND LANDED AT LAX (ATB). MEL 29-11-3 (AIR DRIVEN PUMP) PREVIOUSLY DEFERRED ON LOGPAGE 39540-34/
- [SDR ABXA20260505188](https://openairdocs.org/sdr/ABXA20260505188.md): Pump · warning message · May 5, 2026 · N744AX · Boeing 767232 · Hydraulic Pump (Electric/Engine), Main
  > DURING TAXI, C DEMAND PUMP EICAS MESSAGE. CREW DEFERRED ADP AUTO FUNCTION IAW MEL 29-11-4-1, NO MX PROCEDURES REQ. RETURNED TO THE GATE (BTB). MTC RECLASSIFIED TO NEW MEL 29-11-3. PLACARDS INSTALLED. DEACTIVATION PROCEDURES APPLIED. A/C REMAINS NO ETOPS. A/C R
- [SDR ABXA20260502184](https://openairdocs.org/sdr/ABXA20260502184.md): Circuit Card · defective · May 2, 2026 · N744AX · Boeing 767232 · Fire Detection
  > L ENG FIRE LP1 STATUS MSG. MEASURED RESISTANCE FROM M681 FIRE LOOP 1 DETECT CARD THROUGH PINS 19 AND 20 1.5K OHMS RESISTANCE CHECK GOOD IAW B767 SSM 26-11-01 REMOVED AND REPLACED M681 FIRE DETECT CARD IAW B767 AMM 26-11-01 OPS CHECK GOOD CLEANED UPPER AND LOW
- [SDR ABXA20260501185](https://openairdocs.org/sdr/ABXA20260501185.md): Smoke Goggles · loose · May 1, 2026 · N744AX · Boeing 767232 · Emergency Equipment
  > CAPT SMOKE GOGGLES LOOSE. REPLACED CAPT SMOKE GOGGLE IAW ABX AIR B767-2A/B767-2B. AIRCRAFT REMAINS NO ETOPS. A/C RETURNED TO SERVICE.
- [SDR ABXA20260327133](https://openairdocs.org/sdr/ABXA20260327133.md): Fire Loop · faulted · Mar 27, 2026 · N744AX · Boeing 767232 · Smoke Detection
  > DURING MAINTENANCE INSPECTION FOUND LT ENG FIRE LOOP 1 EICAS MESSAGE. DEFERRED L ENG FIRE LOOP 1 EICAS MSG IAW MEL 26-11-1-1 NO MX ACTIONS REQUIRED PLACARDS INSTALLED. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA20260323124](https://openairdocs.org/sdr/ABXA20260323124.md): Circuit Card · not seated · Mar 23, 2026 · N744AX · Boeing 767232 · Fire Protection System Wiring
  > DURING MAINTENANCE INSPECTION, FOUND R ENG FIRE LP 1 STATUS MESSAGE. RERACKED R ENG FIRE LP 1 CARD M683. IAW B767 AMM 26-10-01. OPS TEST PASSED WITH POWER SWAPS MULTIPLE TIMES. PLACE ON DEFERRAL DUE TO HISTORY. DEFERRED IAW ABX AIR B767 MEL 26-11-1-1. PLACARD
- [SDR ABXA202603198118](https://openairdocs.org/sdr/ABXA202603198118.md): Fire Loop · faulted · Mar 18, 2026 · N744AX · Boeing 767232 · Fire Detection
  > CREW REPORTED FIRE/OVHT SYS FAIL MESSAGE APPEARS ON EICAS EVERY TIME WHEN THRUST REDUCED FROM HIGH TO IDLE. MAINTENANCE VERIFIED R ENG FIRE LOOP 2 INST CURRENTLY FAULTED PER B767 FIM 26-11 FT 804. ONLY R ENG FIRE LOOP 1. DISCREPANCY PREVIOUSLY DEFERRED UNDER
- [SDR ABXA20260318115](https://openairdocs.org/sdr/ABXA20260318115.md): Warning Message · illuminated · Mar 18, 2026 · N744AX · Boeing 767232 · Fire Detection
  > DURING CRUISE, EICAS MESSAGE INFLIGHT FIRE/OVHT SYS. EICAS MESSAGE INFLIGHT FIRE/OVHT SYS PREVIOUSLY DEFERRED; DI 71505 REF LOG PG 39439-75/2 DEFERRED ON 15 MAR 26. AIRCRAFT RETURNED TO SERIVCE.
- [SDR ABXA20260316111](https://openairdocs.org/sdr/ABXA20260316111.md): Fire Warning · false activation · Mar 16, 2026 · N744AX · Boeing 767232 · Fire Detection
  > CREW REPORTED RECEIVED AN EICAS MESSAGE, FIRE/OVHT SYS, FAULT 26904600. MAINENANCE PERFORMED FIM 26-11 FT 804, ENG FIRE DETECTION SYSTEM BITE PROCEDURE. FIRE/OVHT SYS MSG CLEAR. NO DEFECTS NOTED. ACFT RETURNED TO SERVICE.
- [SDR ABXA20260315106](https://openairdocs.org/sdr/ABXA20260315106.md): Fire Warning · false activation · Mar 15, 2026 · N744AX · Boeing 767232 · Fire Detection
  > CREW REPORTED FIRE OVHT SYS EICAS. MAINTENANCE PERFORMED FIRE - OVERHEAT SYSTEM TEST IAW AMM 26-11-01. SYSTEM OPS CHECK GOOD WITH NO FAULT MESSAGES AT THIS TIME. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA20260315105](https://openairdocs.org/sdr/ABXA20260315105.md): Fire Loop · faulted · Mar 14, 2026 · N744AX · Boeing 767232 · Smoke Detection
  > DURING MAINTENANCE INSPECTION, RIGHT ENG FIRE LOOP 1 EICAS MSG. REFERENCE B767 WDM 26-11-21, RAN LOOP 1 SYSTEM FROM D7996P, FOUND RESISTANCE TO BE 2250 OHMS. INDICATES THAT ONE OF THE LOOPS FOR SYSTEM 1 IS BAD, FORWARDED TO DI AND PLACARD PER MEL 26-11-1-1, N
- [SDR ABXA20260219073](https://openairdocs.org/sdr/ABXA20260219073.md): Pca · faulted · Feb 19, 2026 · N744AX · Boeing 767232 · Rudder Control System
  > AFTER BLOCK OUT, A "RUDDER RATIO" EICAS MSG AND DISCREET LIGHT ILLUMINATED. AIRCRAFT RETURNED TO BLOCKS (BTB). PERFORMED FIM 27-21 FT 804 FOUND PCA BALL, RESET BOX EICAS MESSAGE NO LONGER SHOWING. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA20260218072](https://openairdocs.org/sdr/ABXA20260218072.md): Module · faulted · Feb 18, 2026 · N744AX · Boeing 767232 · Rudder Control System
  > CREW REPORTED RUDDER RATIO MESSAGE DESCRITE LIGHT ILLUMINATED. MAINTENANCE PERFORMED FIM TASK 27-21 FAULT TREE 804 AND RESET LT AND RT RRCM MODLES. FAULTS CLEARED AT THIS TIME. A/C OK TO CONTINUE.
- [SDR ABXA202602065053](https://openairdocs.org/sdr/ABXA202602065053.md): Lamp · inoperative · Feb 5, 2026 · N744AX · Boeing 767232 · Landing Gear Position and Warning
  > ON APPROACH TO BOS, NO NOSE GEAR DOWN INDICATION, WENT AROUND (AAP) AND WHILE BEING VECTORED. TESTED LIGHTS AND NOSE GEAR INDICATION TEST NORMAL. GEAR RECYCLE (GRC) FOQA DATA VERIFIES NORMAL GEAR EXTENSION, DOWN AND LOCKED ON BOTH CYCLES INTO BOSTON. PSEU BIT
- [SDR ABXA20260109008](https://openairdocs.org/sdr/ABXA20260109008.md): Fire Loop · malfunctioned · Jan 9, 2026 · N744AX · Boeing 767232 · Fire Detection
  > DURING CRUISE, RT ENG FIRE LP 2 STATUS MESSAGE. DEFERRED RT ENGINE FIRE LP 2 STATUS MESSAGE PER MEL 26-11-1-1. MBCB 01/19/26. PLACARD INSTALLED. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA20251228363](https://openairdocs.org/sdr/ABXA20251228363.md): Fire Warning · illuminated · Dec 28, 2025 · N744AX · Boeing 767232 · Fire Detection
  > INTERMITTENT #2 ENG FIRE LOOP STATUS MESSAGE DURING FLIGHT. FOQA DATA SHOWS THE LOOP IS FAULTING INTERMITTENTLY IN DESCENT. DOES NOT FAULT IN TAKE OFF OR CRUISE. DEFERRED RH ENG FIRE LOOP 2 PER MEL 26-11-1-1, MX ACTION C/W, PLACARDS INSTALLED, AC REMAINS NO E
- [SDR ABXA20251225352](https://openairdocs.org/sdr/ABXA20251225352.md): Fire Loop · fault message · Dec 25, 2025 · N744AX · Boeing 767232 · Fire Detection
  > RIGHT ENGINE FIRE LOOP 2 STATUS MESSAGE ILLUMINATED. DEFERRED RT ENG FIRE LOOP 2 PER MEL 26-11-14. MAINTENANCE ACTION C/W PLACARDS INSTALLED. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA2025122016347](https://openairdocs.org/sdr/ABXA2025122016347.md): Actuator · faulted · Dec 16, 2025 · N744AX · Boeing 767232 · Landing Gear Actuator
  > THERE IS UNUSUALLY LONG GEAR EXTENSION (RIGHT MAIN) DURING APPROACH WITH SHORT EICAS MESSAGE "GEAR DISAGREE", DISAPPEARED SOON.AFTER LANDING IN CVG MTX GROUNDED A/C AND DEFERRED LANDING GEAR ACTUATION SYSTEM IAW MEL 32-30-1. REPO"D AC TO ILN FOR TROUBLE SHOOT
- [SDR ABXA20251213333](https://openairdocs.org/sdr/ABXA20251213333.md): Fire Loop · faulted · Dec 13, 2025 · N744AX · Boeing 767232 · Fire Detection
  > R ENG FIRE LOOP 2 STATUS MSG APPEARED SEVERAL TIMES ENROUTE AND BLANKED AFTER A MINUTE EACH TIME. AFTER LANDING MTX DEFERRED RT ENG.LP2 IAW MEL 26-11-1-1 NO MAINTENANCE PROCEDURES REQ AC REMAINS NO ETOPS. RETURNED AC TO SERVICE.
- [SDR ABXA20251030282](https://openairdocs.org/sdr/ABXA20251030282.md): Oil System · low · Oct 30, 2025 · N744AX · Boeing 767232 · Turbine Engine Oil System
  > DURING TAXI, RIGHT ENGINE OIL QUANTITY INDICATION INOP. A/C RETURNED TO BLOCKS (BTB). DEFERRED RT ENGINE OIL QTY. INDICATION IAW MEL 79-31-1-1. MBCB 11/02/2025. REPETITIVE INSPECTION REQUIRED BEFORE EACH FLIGHT. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA20250929241](https://openairdocs.org/sdr/ABXA20250929241.md): Bleed Valve · warning message · Sep 29, 2025 · N744AX · Boeing 767232 · Compressor Bleed Valve
  > ON T/O ROLL, (R ENG BLEED VAL) CAUTION MSG APPEARED. ABORTED TAKE-OFF AT 68 KNTS AND RETURNED TO GATE (BTB) AND MTX GROUNDED A/C.MTX DEFERRED RH ENGINE BLEED IAW MEL ABX - 36-11-2-1. AND RETURNED A/C TO SERVICE.
- [SDR ABXA20250826199](https://openairdocs.org/sdr/ABXA20250826199.md): Fuse · defective · Aug 26, 2025 · N744AX · Boeing 767232 · Hydraulic System, Main
  > DURING TAXI, R HYD SYSTEM QUANITY LOW. AIRCRAFT RETURNED TO BLOCKS. (BTB). MAINTENANCE REMOVED AND REPLACED HYDRAULIC FUSE ON RH ANTISKID MODULE OUT "D" POSITION. OPERATIONAL AND LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA202508216185](https://openairdocs.org/sdr/ABXA202508216185.md): Battery · discharged · Aug 16, 2025 · N744AX · Boeing 767232 · Smoke Detection
  > DURIING FLIGHT, LOW BATTERY CHIRP ON LAV SMOKE DETECTOR. MAINTENANCE REPLACED LAV SMOKE DETECTOR BATTERY IAW AMM SUPP 26-12-00. OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA20250808174](https://openairdocs.org/sdr/ABXA20250808174.md): Fire Loop · intermittent · Aug 2, 2025 · N744AX · Boeing 767232 · Smoke Detection
  > RIGHT ENGINE FIRE LOOP 2 MSG ON DESCENT INTERMITTENT. OPENED COWLS AND CHECKED FIRE LOOP, FOUND OK. DEFERRED IAW MEL C ABX-26-11-1-1. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA2025623135](https://openairdocs.org/sdr/ABXA2025623135.md): Sensor · faulted · Jun 23, 2025 · N744AX · Boeing 767232 · Power Indicating System
  > ON TAKE-OFF AND ENGINE START, LEFT ENG DID NOT DISPLAY N1 IDICATION. AIRCRAFT ABORTED TAKE-OFF. (ATO). REMOVED AND REPLACED LT ENG N1 SPEED SHAFT SENSOR IAW B767 AMM 77-12-01, NO HELP. PERFORMED T/S PER WDM 77-12-11. FOUND CONNECTOR D4224P UNSECURED. RE-S
- [SDR ABXA20250616129](https://openairdocs.org/sdr/ABXA20250616129.md): Exhaust Valve · faulted · Jun 16, 2025 · N744AX · Boeing 767232 · Air Distribution System
  > ON CLIMBOUT, FWD EQPT VAL EICAS MESSAGE WOULD NOT EXTINGUISH. CONTACT MX CONTROL, RETURNED TO MIA. (ATB) DEFERRED FWD EQPT EXHAUST VALVE IAW MEL 21-58-7-2-1. MX C/W 21-58-7. PLACARD INSTALLED MBCB 06/26/25. A/C REMAINS NO ETOPS. AIRCRAFT RETURNED TO SE
- [SDR ABXA20250531115](https://openairdocs.org/sdr/ABXA20250531115.md): Blowout Panel · missing · May 31, 2025 · N744AX · Boeing 767232 · Nacelle/Pylon, Main Frame
  > DURING INSPECTION AT MIA, MAINTENANCE FOUND ON RIGHT ENGINE ON O/B SIDE OF RADIANT HEAT SHIELD BLOW OUT PANEL MISSING. INSTALLED NEW BLOW OUT PANEL "RADIANT HEAT SHIELD" ON O/B SIDE OF RIGHT ENG IAW AMM 72-31-00. A/C REMAINS NO ETOPS. DEFERRED MISSING LANYA
- [SDR ABXA20250531114](https://openairdocs.org/sdr/ABXA20250531114.md): Blowout Panel · missing · May 31, 2025 · N744AX · Boeing 767232 · Nacelle/Pylon, Main Frame
  > DURING INSPECTION AT MIA, MAINTENANCE FOUND ON LEFT ENGINE ON I/B SIDE OF RADIANT HEAT SHIELD BLOW OUT PANEL MISSING. INSTALLED NEW BLOW OUT "RADIANT HEAT SHIELD" ON I/B SIDE OF LEFT ENG IAW AMM 72-31-00. A/C REMAINS NO ETOPS. DEFERRED MISSING LANYARD PER A
- [SDR ABXA20250531111](https://openairdocs.org/sdr/ABXA20250531111.md): Warning Light · false activation · May 31, 2025 · N744AX · Boeing 767232 · Hydraulic Indicating System
  > AFTER BLOCK OUT WITH BOTH ENGINES RUNNING AND FLAPS EXTENDED EICAS MESSAGE APPEARED CENTER 1 PRIMARY PUMP ALSO PRESSURE LIGHT ON C1 PUMP. AIRCRAFT RETURNED TO BLOCKS (BTB). DEFERRED SYSTEM IAW MEL C ABX-29-31-2-1. PERFORMED OPS CHECK OF C1 AND C2 HYD SYSTEM
- [SDR ABXA20241231276](https://openairdocs.org/sdr/ABXA20241231276.md): Cooling Fan · faulted · Dec 31, 2024 · N744AX · Boeing 767232 · Air Distribution Fan
  > DURING TAXI,EICAS "FWD EQUIP OVHT: DESCREET LT "OVHT", WENT TO STBY AND BOTH INDICATIONS RETURNED AC RETURNED TO THE GATE (BTB) AND MTX GROUNDED AC. MTX DEFERRED FWD EQUIP. COOLING IAW MEL-ABX-21-58-1-1. FOR DEPARTURE AND RETURNED AC TO SERVICE
- [SDR ABXA20241207244](https://openairdocs.org/sdr/ABXA20241207244.md): Oil System · low · Dec 7, 2024 · N744AX · Boeing 767232 · Turbine Engine Oil System
  > AFTER BLOCK OUT, ON ENGINE STARTS & ENGINES RUNNING 8 MINUTES (APPROX) LEFT ENGINE QUANTITY 11, RIGHT ENGINE 14, CONTACTED MAINTENANCE & TOLD TO RETURN TO GATE FOR SERVICING. MAINTENANCE GROUNDED THE AIRCRAFT. MAINTENANCE SERVICED LEFT ENGINE OIL IAW 767-AMM 1
- [SDR ABXA20241122232](https://openairdocs.org/sdr/ABXA20241122232.md): Bear Strap · corroded · Nov 22, 2024 · N744AX · Boeing 767232 · Fuselage Main, Plate/Skin
  > DURING N744AX C-CHECK AT AIRBORNE (TAMPA), THE LH BULK CARGO DOOR SURROUND STRUCTURE, BEAR STRAP P/N 146T8220-1 BETWEEN STA 1395-1417 AND STR 33L HAS CORROSION. THE DAMAGE WAS REMOVED BY BLEND-OUT PROCESS. THE ORIGINAL THICKNESS IS 0.160 INCHES AND THE REMAINI
- [SDR ABXA20240907170](https://openairdocs.org/sdr/ABXA20240907170.md): Warning Message · false activation · Sep 6, 2024 · N744AX · Boeing 767232 · Central Warning
  > AFTER PUSHBACK C HYD PRIM 1 EICAS MESSAGE APPEARED JUST AFTER PUSHBACK AND BOTH ENGINES STABILIZED A/C RETURNED TO THE GATE AND MTX GROUNDED A/C. MTX VERIFIED HYD PUMP WORKING. REF AMM 29-11-00. OPS CHECK GOOD. AND RETURNED A/C TO SERVICE.
- [SDR ABXA20240627126](https://openairdocs.org/sdr/ABXA20240627126.md): Valve · fod · Jun 27, 2024 · N744AX · Boeing 767232 · Aircraft Fuel Distribution System
  > DURING TAXI AFTER #2 ENGINE START, ENGINE STABILIZED, SPAR VALVE DISCRETE LIGHT ILLUMINATED, #2 ENGINE SHUT DOWN.AND AC RETURNED TO GATE.MAINTENANCE GROUNDED AC AND FOUND PART OF OLD CLAMP JAMMING VALVE ARM. REMOVED FOD AND OPS CK GOOD IAW AMM 28-22-11.AC W
- [SDR ABXA20240623122](https://openairdocs.org/sdr/ABXA20240623122.md): Valve · leaking · Jun 23, 2024 · N744AX · Boeing 767232 · Hydraulic System, Main
  > AFTER PUSHBACK R HYD SYS PRESS EICAS MESSAGE AND DISCRETE LIGHT ILLUMINATED AFTER SETTING BRAKES AFTER PUSH-BACK. R HYD STS QUANTITY ON STATUS PAGE READS 0.00RF.AC RETURNED TO GATE AND SHUT DOWN,MAINTENANCE GROUNDED AC.AND FOUND NBR ONE MLG BRAKE HYDRAULIC F
- [SDR ABXA20240531105](https://openairdocs.org/sdr/ABXA20240531105.md): Battery · unserviceable · May 31, 2024 · N744AX · Boeing 767232 · Battery/Charger System
  > AMENDED,"DURING TAXI MAIN BATT CHARGER STATUS MESSAGE AC RETURNED TO GATE AND MAINTENANCE GROUNDED AC, DEFERRED APU AND SWAPPED BATERY FOR DEPARTURE IAW 24-31-01 AND APU DEFERRAL ABX-49-11-1A AND RETURED A/C TO SERVICE "
- [SDR ABXA20240531104](https://openairdocs.org/sdr/ABXA20240531104.md): Battery · unserviceable · May 31, 2024 · N744AX · Boeing 767232 · Airborne Auxiliary Power Unit (APU) System
  > DURING TAXI APU INOP. AC RETURNED TO GATE AND MAINTENANCE GROUDED AC.DEFERRED FOR DEPARTURE AND RETURNED AC TO SERVICE. NEXT LEG MAINTENANCE REPLACED APU BATTERY AND OPS CHECKED GOOD. "
- [SDR 2024F00145](https://openairdocs.org/sdr/2024F00145.md): Battery · failed · May 31, 2024 · N744AX · Boeing 767232 · Battery/Charger System
  > MAIN BATT CHARGER STATUS MESSAGE
- [SDR 2024FA0000416](https://openairdocs.org/sdr/2024FA0000416.md): Apu · inoperative · May 31, 2024 · N744AX · Boeing 767232 · APU Core Engine
  > APU INOP
- [SDR ABXA20240129618](https://openairdocs.org/sdr/ABXA20240129618.md): Indicator · malfunctioned · Jan 26, 2024 · N744AX · Boeing 767232 · Landing Gear Position and Warning
  > SELECTED GEAR DOWN AND RIGHT LANDING GEAR INDICATION DOES NOT SHOW DOWN AND LOCKED. NO EICAS MESSAGE DISPLAYED. DECLARED AN EMERGENCY. LANDED SAFELY. TAXIED CLEAR OF RUNWAY INSTALLED GEAR PINS AND TOWED TO GATE.MAINTENANCE GROUNDED AC AND TROUBLESHOT FINDING R
- [SDR ABXA20240116309](https://openairdocs.org/sdr/ABXA20240116309.md): Pitot Tube · malfunctioned · Jan 13, 2024 · N744AX · Boeing 767232 · Pitot/Static System
  > AFTER STARTING NUMBER 2 ENGINE WHILE TAXI OUT CAPTAIN PITOT STATUS AND OVERHEAD CAPTAIN PITOT LIGHT CAME ON. AC RETURNED TO GATE AND MAINTENANCE GROUNDED AC. TROUBLE SHOT AND REMOVED AND REPLACED CAPTAINS PITOT STATIC PROBE IAW B767 AMM 34-11-01. PERFORMED L
- [SDR ABXA20231013197](https://openairdocs.org/sdr/ABXA20231013197.md): Unknown · unserviceable · Oct 13, 2023 · N744AX · Boeing 767232 · Flight Control System
  > L IRS FAULT LIGHT ILLUMINATED WHEN TAXIING FOR TAKE OFF AC BTB GROUNDED AND DEFERRED IAW ABX-34-21-1-1-1A,A/C FLOWN TO SBD MX,GROUNDED AC REMOVED AND REPLACED LEFT IRU IAW AMM 34-21-01. IRU TEST PASSED. MCDP TEST 30 SHOWED NO FAULTS. THIS CLOARS DI 45871
- [SDR ABXA20230802152](https://openairdocs.org/sdr/ABXA20230802152.md): Bleed Valve · faulted · Aug 1, 2023 · N744AX · Boeing 767232 · Compressor Bleed Valve
  > RIGHT ENGINE BLEED OFF EICAS. NO DUCT PRESSURE. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REMOVED AND REPLACED #2 ENGINE PRSOV IAW B767 AMM 36-11-09. ENGINE RUN REFORMED AND PNEUMATIC SYSTEM OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE,
- [SDR ABXA2023042466](https://openairdocs.org/sdr/ABXA2023042466.md): Unknown · unknown · Apr 22, 2023 · N744AX · Boeing 767232 · Navigation System
  > WX RADAR FAIL ON TAXI. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE PERFORMED OPS CHECK OF WEATHER RADAR IAW AMM 34-43-00. OPS CHECK GOOD AT THIS TIME. AIRCRAFT RETURNED TO SERVICE.
- [SDR ABXA2023042062](https://openairdocs.org/sdr/ABXA2023042062.md): Unknown · unknown · Apr 19, 2023 · N744AX · Boeing 767232 · Powerplant System
  > AFTER ENGINE START "FWD EQPT VAL" EICAS AND VALVE DISCRETE LIGHT. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE FOUND OVRBD VALVE C OUT, RESET CB + RUN BOTH ENGINES PER B767 AMM 71-00-00 OPS CHK GOOD. AIRCRAFT RETURNED TO SERVICE.

Next page: https://openairdocs.org/aircraft/N744AX/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 = 'N744AX' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N744AX/reports

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