# Service difficulty reports: N390CM A list on [N390CM](https://openairdocs.org/aircraft/N390CM.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR ABXA20260817368](https://openairdocs.org/sdr/ABXA20260817368.md): Fan · faulted · Aug 17, 2026 · N390CM · Boeing 767381 · Smoke Detection > EICAS, M LEVEL AFT DET FAN. DEFERRED IAW MEL ABX-26-16-1-3-1. ACFT RETURNED TO SERVICE. - [SDR ABXA20260610253](https://openairdocs.org/sdr/ABXA20260610253.md): Smoke Detector · defective · Jun 10, 2026 · N390CM · Boeing 767381 · Smoke Detection > DURING INS/MTC, PERFORM F/U CHECK FOR PREVIOUS STATUS MSG "FWD CARGO DET 1". C/W LWR CARGO COMPART SMOKE DETECT OPS TEST IAW AMM 26-16-00. OPS CHECK GOOD. NO MSG PRESENTED IN EICAS STS. PER MAINTENANCE CONTROL REQUEST, FWD CARGO DETECT 1 SMOKE DETECTOR REQUIRE - [SDR ABXA20260609252](https://openairdocs.org/sdr/ABXA20260609252.md): Smoke Detector · defective · Jun 9, 2026 · N390CM · Boeing 767381 · Smoke Detection > DURING INS/MTC, FWD CARGO DET 1 EICAS MESSAGE. REMOVED AND REPLACED #1 DET A FROM FWD CARGO COMPARTMENT IAW B767 AMM 26-16-01. OPS CHECK GOOD THIS CLOSES D.I. #74022, PLACARD REMOVED. NO REACTIVATION PROCEDURE REQUIRED. A/C REMAINS ETOPS 180. A/C RETURNED TO S - [SDR ABXA20260605241](https://openairdocs.org/sdr/ABXA20260605241.md): Pitot Tube · malfunctioned · Jun 5, 2026 · N390CM · Boeing 767381 · Pitot/Static System > DURING TAXI OUT LT AUX PITOT DISCRETE LIGHT AND EICAS AFTER ENGINE START. ACFT RETURNED TO THE GATE AND MTX GROUNDED ACFT. TROUBLESHOT AND REMOVED AND REPLACED LEFT/ CAPTAIN AUX PITOT PROBE IAW AMM 34-11-01 OPS TEST GOOD ACFT REMAINS RVSM COPMPLIANT ACFT REMA - [SDR ABXA20260604243](https://openairdocs.org/sdr/ABXA20260604243.md): Charger · faulted · Jun 4, 2026 · N390CM · Boeing 767381 · Emergency Lighting > L1 DOOR EMERGENCY EXIT SIGN LIGHTS INOPERATIVE. MTX GROUNDED ACFT, REPLACED POWER SUPPLY BATTERY CHARGER ASSY IAW AMM 33-51-07. OPS CHECKED GOOD. M734 MTX RETURNED ACFT TO SERVICE. - [SDR ABXA20260522220](https://openairdocs.org/sdr/ABXA20260522220.md): Smoke Detector · defective · May 22, 2026 · N390CM · Boeing 767381 · Smoke Detection > IN CRUISE, CARGO FIRE CONTROL PANEL AMBER LIGHT ON 7A. THIS TRIGGERED THE FIRE BELLS, MASTER WARNING, AND FIRE ANNUNCIATOR LIGHT. CREW DIVERTED (DIV) TO PHX. MTC REMOVED AND REPLACED SMOKE DETECTOR 7A IAW IAI AMM SUPPLEMENT 26-14-01 OPS CHECKS GOOD, A/C REMAIN - [SDR ABXA20260522219](https://openairdocs.org/sdr/ABXA20260522219.md): Smoke Warning · illuminated · May 22, 2026 · N390CM · Boeing 767381 · Smoke Detection > DURING PREFLIGHT CHECK, SMOKE DETECTION,MAIN DECK CARGO COMPARTMENT, ALL B AMBER FAULT LIGHTS ARE ILLUMINATED. MTC DEFERRED PER MEL ABX-26-16-2-2. A/C RELEASED NO ETOPS AND RETURNED TO SERVICE. - [SDR ABXA20260518213](https://openairdocs.org/sdr/ABXA20260518213.md): Fire Warning · false activation · May 18, 2026 · N390CM · Boeing 767381 · Fire Detection > MAIN DECK FIRE A LOOP #7 AMBER LIGHT ILLUMINATED. MTC PERFORMED (A FOLTS) SYSTEM TEST IAW B767 AMM 26-10-00 OPS TEST GOOD AT THIS TIME. A/C REMAINS ETOPS 180. A/C RETURNED TO SERVICE. - [SDR ABXA20260108006](https://openairdocs.org/sdr/ABXA20260108006.md): Elec Connector · dirty · Jan 8, 2026 · N390CM · Boeing 767381 · Flight Control System Wiring > DURIING TAXI OUT, TE FLAP DISAGREE CAUTION AND TRAILING EDGE LIGHT UPON SELECTION OF FLAPS 5 FOR TAKEOFF. AIRCRAFT RETURNED TO BLOCKS. (BTB). TROUBLESHOOT TO MANUAL OVERRIDE BYPASS VALVE STUCK OPEN. CLEANED THE ELECTRICAL CONNECTOR AND CYCLED LEVER MULTIPLE - [SDR ABXA202512264355](https://openairdocs.org/sdr/ABXA202512264355.md): Generator · defective · Dec 24, 2025 · N390CM · Boeing 767381 · Attitude Gyro and Indicating System > DURING TAXI, LEFT S/G FAILED AFTER ENGINE START. RAN QRH. ALSO OCURRED FROM GROUND POWER TO APU. AIRCRAFT RETURNED TO BLOCKS. (BTB). DEFERRED LT S/G IAW MEL 34-22-5. REMOVED AND REPLACED LT SYMBOL GENERATOR. OPS CHECK GOOD IAW B767 AMM 34-22-01. DI CLEARED - [SDR ABXA2025121310](https://openairdocs.org/sdr/ABXA2025121310.md): Pump · faulted · Dec 1, 2025 · N390CM · Boeing 767381 · Fuel Boost Pump > DURING TAXI OUT L AFT FUEL PUMP EICAS MSG. L AFT FUEL PRESSURE LIGHT AS WELL.A/C RETURNED TO THE GATE (BTB) AND MTX GROUNDED A/C.MTX DEFERRED THE LH AFT FUEL PUMP IAW MEL ABX-28-22-1 AND RETURNED A/C TO SERVICE. - [SDR ABXA20251127309](https://openairdocs.org/sdr/ABXA20251127309.md): Warning Message · illuminated · Nov 27, 2025 · N390CM · Boeing 767381 · Fuel Boost Pump > DURING TAXI OUT LT AFT FUEL PUMP EICAS, QRH COMPLETE. ACFT RETURNED TO THE GATE (BTB) AND MTX GROUNDED A/C. MTX DEFERRED LEFT AFT FUEL PUMP IAW MEL ABX-28-22-1. AND RETURNED A/C TO SERVICE. - [SDR ABXA20251030283](https://openairdocs.org/sdr/ABXA20251030283.md): Valve · defective · Oct 30, 2025 · N390CM · Boeing 767381 · Brake Anti-Skid Section > DURING TAXI, AND DURING ANTI SKID TEST, FOUND PARKING BRAKE LIGHT EXTINGUSHED ON CENTER CONSOLE WITH PARKING BRAKE SET. A/C RETURNED TO BLOCKS (BTB). MAINTENANCE REMOVED AND REPLACED BRAKE CONTROL VALVE IAW AMM 32-44-04. OPS AND LEAK CHECK NORMAL. AIRCRAFT - [SDR ABXA20251007258](https://openairdocs.org/sdr/ABXA20251007258.md): Probe · defective · Oct 7, 2025 · N390CM · Boeing 767381 · Outside Air Temperature Indicator/Sensor > DURING CLIME OUT, TAT PROBE EICAS MESSAGE APPEARED. AC RETURNED TO SJU (ATB) AND LANDED,MTX GROUNDED AC AND TROUBLESHOT. FOUND TAT PROBE HEAT INOP. REMOVED AND REPLACED TAT PROBE IAW B767 AMM 34-12-02. OPS CHECK GOOD. A/C REMAINS ETOPS 180. RVSM COMPLIANT / - [SDR ABXA20250418081](https://openairdocs.org/sdr/ABXA20250418081.md): Warning Message · illuminated · Apr 18, 2025 · N390CM · Boeing 767338 · Fuel Boost Pump > FLT NR: ABX120. DURING TAXI OUT, LT FWD FUEL PUMP PRESSURE LIGHT WITH EICAS ILLUMINATED. AIRCRAFT RETURNED TO BLOCKS. (BTB) MAINTENANCE DEFERRED IAW MEL ABX-28-22-1. AIRCRAFT RETURNED TO SERVICE. - [SDR ABXA20250131028](https://openairdocs.org/sdr/ABXA20250131028.md): A/C Pack · odor · Jan 31, 2025 · N390CM · Boeing 767381 · Cabin Cooling System > CREW REPORTED RH PACK SMELLS LIKE BURNING OIL. MTX GROUNDED A/C AND OPS CHECKED RH PACK AND NO OIL SMELL AFTER 20 MINUTES OF OPERATION IAW 21-20-21. A/C REMAINS ETOPS 180. AND RETURNED A/C TO SERVICE. - [SDR ABXA20250129025](https://openairdocs.org/sdr/ABXA20250129025.md): Check Valve · misinstalled · Jan 29, 2025 · N390CM · Boeing 767338 · Cabin Cooling System > DURING CLIMB PILOT REPORTED RIGHT PACK TEMP EICAS MESSAGE AC RETURNED TO FIELD (ATB) AND MTX GROUNDED AC. MTX TROUBLE SHOT AND FOUND R/H TRIM AIR CHECK VALVE INSTALLED INCORRECTLY, REINSTALLED CHECK VALVE CORRECTLY AS PER B767 AMM 21-61-05. PERFORMED OPS CHE - [SDR ABXA20241130238](https://openairdocs.org/sdr/ABXA20241130238.md): Isolation Valve · stuck · Nov 30, 2024 · N390CM · Boeing 767381 · Pneumatic Distribution System > DURING TAXI OUT LH ISLV VALVE STUCK IN CLOSED POSITION,AC RETURNED TO GATE (BTB) AND MTX GROUNDED AC. PERFORMED OPS L ISLN VALVE CHRECKD WITH NO NO ISSUES FOUND CYCLE IT SEVERAL TIMES VALVE OPERATED OK IAW AMM 36-11-04. AIRCRAFT REMAINS ETOPS 180. MTX RE - [SDR ABXA20241116226](https://openairdocs.org/sdr/ABXA20241116226.md): Warning Light · illuminated · Nov 16, 2024 · N390CM · Boeing 767338 · Door Warning System > DURING 2ND ENGINE START WHILE TAXIING OUT MAIN CARGO DOOR WARNING LIGHT ILLUMINATED,AC RETURNED TO GATE (BTB) AND MTX GROUNDED AC.MTX DEFERRED MAIN CARGO WARNING INDICATION IAW MEL ABX-52-71-1-2 AND RETURNED AC TO SERVICE. - [SDR ABXA20240923178](https://openairdocs.org/sdr/ABXA20240923178.md): Computer · malfunctioned · Sep 23, 2024 · N390CM · Boeing 767338 · Auto Throttle System > AUTO THROTTLE DISC DURING TAXI AC RETURNED TO GATE AND MTX GROUNDED AC. AFTER TROUBLE SHOOTING REPLACED TMC IAW B767 AMM 22-31-01 OPS CHECK GOOD.A/C RELEASED CAT 1 PENDING 30/40 TEST PLACARD ROTATED. AND RETURNED A/C TO SERVICE. - [SDR ABXA20240702129](https://openairdocs.org/sdr/ABXA20240702129.md): Warning Message · illuminated · Jul 2, 2024 · N390CM · Boeing 767338 · Air Distribution System > DOOR CLOSED AND DURING ENGINE START.EQ COOL EXT FAN 1 AND 2 STATUS MSG AFTER START. ENGINE WAS SHUT DOWN AND MTX ENTERED FLIGHT DECK. AND GROUNDED AC.MTX RE-RACKED LEFT AND RIGHT ECS CONTROL CARDS M861 AND M862, NO HELP. CYCLED EQUIPMENT COOLING SELECTOR S - [SDR ABXA20240619120](https://openairdocs.org/sdr/ABXA20240619120.md): Sensor · malfunctioned · Jun 19, 2024 · N390CM · Boeing 767338 · Engine RPM Indicating System > LEFT ENG SPEED CARD MESSAGE DURING TAXI. AC RETUREND TO GATE MAINTENANCE GROUNDED AC AND RANG OUT N2 SPEED SENSOR IAW WDM 73-21-18 AND 77-12-12 FOUND LEFT T41 N2 SPEED SENSOR SHORTED TO GROUND INTERNALLY. REMOVED AND REPLACED SAME IAW B767 AMM 77-12-02. OPS, B - [SDR ABXA20231216221](https://openairdocs.org/sdr/ABXA20231216221.md): Hose · unserviceable · Dec 16, 2023 · N390CM · Boeing 767381 · Engine Bleed Air System > RIGHT ENGINE BLEED OFF LIGHT ASSOCIATED AC RETURNED TO GATE AND MAINTENANCE REMOVED AC FROM SERVICE DEFERRED FOR DEPARTURE MEL 36-11-1-2A-1 AND RELEASED. WORKED NEXT BASE CONDUCTED T/S PER FIM 26-10 F.T 837. DURING BIT, PRV AND PRVC FAULT IN HISTORY. FOUND R - [SDR ABXA20231211219](https://openairdocs.org/sdr/ABXA20231211219.md): Valve · failed · Dec 11, 2023 · N390CM · Boeing 767338 · Cabin Cooling System > " LEFT PACK OFF AMBER ALERT EICAS MESSAGE ON TAXI AC RETURNED TO BLOCK AND GROUNDED BY MAINTENANCE.DEFERRED LH PACK FOR DEPARTURE IAW ABX-MEL 21-51-1-1. AND RETURNED AC TO SERVICE WORKED A/C T/S PER W.D. 21-51-11 REACT. LH PACK FLOW CONTROL VALVE PER - [SDR ABXA20230822177](https://openairdocs.org/sdr/ABXA20230822177.md): Unknown · unknown · Aug 21, 2023 · N390CM · Boeing 767381 · Air Conditioning System > AFTER BOTH ENGINES STARTED FWD EQPT VAL EICAS MESSAGE AND VALVE DISCRETE LIGHT ON EQUIP COOLING PANEL ILLUMINATED. QRH PROCEDURE DID NOT CLEAR THE MESSAGE AND LIGHT. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REPAIRED BROKEN GRD WIRE GD12 - [SDR ABXA2023040346](https://openairdocs.org/sdr/ABXA2023040346.md): Valve · sticking · Mar 31, 2023 · N390CM · Boeing 767381 · Pneumatic System > R ENGINE BLEED OFF EICAS MESSAGE DURING TAXI. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REMOVED PRSOV IAW AMM 36-11-09. INSTALLED NEW SERVICEABLE R/H PRSOV ON #2 ENGINE IAW B767 AMM 36-11-09 A/C REMAINS NO ETOPS OPS CHK GOOD. AIRCRAFT RET - [SDR ABXA20230331045](https://openairdocs.org/sdr/ABXA20230331045.md): Unknown · unknown · Mar 29, 2023 · N390CM · Boeing 767381 · Landing Gear System > SET PARKING BRAKE AFTER PUSH BACK BUT NO PARK BRAKE LT ILLUMINATED AND NO PARK BRAKE ON EICAS APPEARED. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE CLEANED CANNON PLUG OPERATED BRAKES SEVERAL TIMES OPS CK NORMAL IAW 32-44-00. AIRCRAFT RETUR - [SDR ABXA2023032036](https://openairdocs.org/sdr/ABXA2023032036.md): Unknown · unknown · Mar 18, 2023 · N390CM · Boeing 767381 · Engine Thrust Reverser > LEFT THRUST REV GREEN LIGHT COMES ON, HOWEVER HANDLE DID NOT GO PAST INTERLOCK. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE PERFORMED OPERATIONAL TEST OF BOTH LEFT AND RIGHT REVERSER SYSTEMS. BOTH MESSAGES CLEARED. OPS CHECK GOOD. REF B767 - [SDR ABXA2023011612](https://openairdocs.org/sdr/ABXA2023011612.md): Display · odor · Jan 13, 2023 · N390CM · Boeing 767381 · Central Display > FO'S EHSI DISPLAY FAILED INFLIGHT AFTER FAILURE STRONG ODOR OF BURNT ELECTRONICS. AIRCRAFT COMPLETED FLIGHT AND LANDED WITH OUT FURTHER INCIDENT. MAINTENANCE GROUNDED AIRCRAFT. MAINTENANCE REMOVED AND REPLACED COPILOTS EHS DISPLAY IAW B767 AMM 31-41-01 OPS CHE - [SDR ABXA20221227157](https://openairdocs.org/sdr/ABXA20221227157.md): Warning Message · illuminated · Dec 24, 2022 · N390CM · Boeing 767338 · Engine Fuel Distribution > L ENG FUEL FILT EICAS / R ENG FUEL FILT EICAS DISPLAYED DURING CRUISE. AIRCRAFT DIVERTED TO SNN (SHANNON) AIRCRAFT WAS GROUNDED BY MAINTENANCE. MAINTENANCE INSPECTED AND REPLACED THE RIGHT AND THE LEFT MAIN FUEL FILTERS IAW AMM 73-11-02. NO FAULTS FOUND ON RE - [SDR ABXA2022092093](https://openairdocs.org/sdr/ABXA2022092093.md): Fmc · failed · Sep 20, 2022 · N390CM · Boeing 767381 · Flight Management Computing Hardware System > DURING TAXI, RIGHT FMC FAILED. AICRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE DEFERRED RIGHT FMC IAW MEL 34-61-1-1A. MAINTENANCE PRCEDURES COMPLIED WITH. PLACARD INSTALLED. AICRAFT RETURNED TO SERVICE. - [SDR 2022FA0000307](https://openairdocs.org/sdr/2022FA0000307.md): None · none · Jun 23, 2022 · N390CM · Boeing 767381 · Engine Fuel Distribution > AFTER ENGINE START EICAS MSG LEFT AND RIGHT EEC MODE DISPLAYED WITH CA'S PITOT STATIC INSTRUMENTS ALL DISPLAYED OFF FLAGS- SELECTED ALL DATA AIR SWITCH/FIXED. AIRCRAFT RETURNED TO GATE AND GROUNDED BY MAINTENANCE. EEC MONITOR FAULT SHOWED NO FAULTS ON RIGHT A - [SDR MK1Y20220515006](https://openairdocs.org/sdr/MK1Y20220515006.md): None · used · May 15, 2022 · N390CM · Boeing 767 · Engine Cowling System > DURING MAINTENENCE INSPECTION FOUND DAMAGEON #1 ENGINE RIGHT CORE COL PRECOOLER EXIT DUCT UPPER SIDE (DEEP GROOVES, HOLE AND WORNAREA) - [SDR MK1Y20220515005](https://openairdocs.org/sdr/MK1Y20220515005.md): Duct · damaged · May 15, 2022 · N390CM · Boeing 767381 · Engine Cowling System > DURING MAINTENENCE INSPECTION FOUND DAMAGE ON #2 ENGINE RIGHT CORE COWL PRECOOLER EXIT DUCT UPPER SIDE (DEEP GROOVES, HOLE AND WORNAREA) - [SDR MK1Y20220515004](https://openairdocs.org/sdr/MK1Y20220515004.md): Channel · cracked · May 15, 2022 · N390CM · Boeing 767381 · Fuselage Miscellaneous Structure > DURING MAINTENENCE INSPECTION FOUND CRACK AT FASTENER LOCATION ON FWD OUTER CHORD, STA 1809, STR 12AL. - [SDR MK1Y20220515003](https://openairdocs.org/sdr/MK1Y20220515003.md): Bulkhead Web · dented · May 15, 2022 · N390CM · Boeing 767381 · Fuselage Main, Bulkhead > DURING MAINTENENCE INSPECTION A DENT DAMAGE CAUSED TO THE AFT PRESSURE BULKHEAD WEB 6" AFT OF STA 1582, 6 O'CLOCK. - [SDR MK1Y20220515002](https://openairdocs.org/sdr/MK1Y20220515002.md): Skin · damaged · May 15, 2022 · N390CM · Boeing 767381 · Fuselage Main, Plate/Skin > DURING MAINTENENCE INSPECTION FOUND SEVERAL BLED OUTS ON FUSELAGE SKIN, STA 1458- STA 1544, STR 20L-STR 22L COMMON TOFASTENERS. - [SDR MK1Y20220515](https://openairdocs.org/sdr/MK1Y20220515.md): Skin · damaged · May 15, 2022 · N390CM · Boeing 767381 · Fuselage Main, Plate/Skin > DURING MAINTENENCE INSPECTION FOUND SEVERAL BLEED OUTS ON FUSELAGE SKIN, STA 434 - STA 544, STR 36R. ## 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 = 'N390CM' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N390CM/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.