# Service difficulty reports: N2251U A list on [N2251U](https://openairdocs.org/aircraft/N2251U.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR CALA2026090919323](https://openairdocs.org/sdr/CALA2026090919323.md): Duct · damaged · Sep 8, 2026 · N2251U · Boeing 777300ER · Air Distribution System > ROW 20ABC WAS PRODUCING VERY HOT AIR FROM LOWER SIDEWALL PANEL. HAD TO MOVE PASSENGERS FROM THE AREA DUE TO HEAT. PILOTS AND F/A'S BOTH REPORTED NO ODOR OR FUMES. ABLE TO DUPLICATE ON GROUND. TURNING OFF LT PACK STOPPED LOUD NOISE AND UNBEARABLE HEAT. FOUN - [SDR CALA2026051116144](https://openairdocs.org/sdr/CALA2026051116144.md): Switch · malfunctioned · May 8, 2026 · N2251U · Boeing 777300ER · Emergency Lighting > EMERGENCY LIGHTS CAME ON IN CRUISE. MOVED SWITCH TO OFF AND THEY STAYED ON. MOVED SWITCH TO ON AND THEN BACK TO ARMED AND LIGHTS WENT OUT. PERFORMED FIM PROCEDURE PER B773 FIM 33-51 TASK 802. NO ACTIVE CORRELATED MAINTENANCE MESSAGE. PERFORMED OPS TEST OF T - [SDR CALA2025100809781](https://openairdocs.org/sdr/CALA2025100809781.md): Pin · installed · Oct 7, 2025 · N2251U · Boeing 777300ER · Standard Practices/Structures > REF ETASK CARD 23-5212-1-2001. INSTALLED 2 EA. L2 PED SLIDE SAFETY PINS. RMV'D & STOWED 2 EA. SAFTEY PINS FOR PED L2 REF ETASK CARD 23-5212-1-2001. INSPECTED VERIFIED SLIDE PIN STOWED AND OPCH OK. - [SDR CALA2025091008722](https://openairdocs.org/sdr/CALA2025091008722.md): Warning Message · false activation · Sep 8, 2025 · N2251U · Boeing 777300ER · Smoke Detection > CABIN CONTROL PANELS 1L 2L 3L SHOW SMOKE DET MESSAGE NO SMOKE PRESENT IAW FIM 26-14 TASK 811. RESET CSCP MESSAGE CLEARED. NO EVIDENCE OF SMOKE OR ODOR THROUGHOUT CABIN, NO SMOKE RELATED MESSAGES FOUND IN HISTORY. - [SDR CALA2025050604491](https://openairdocs.org/sdr/CALA2025050604491.md): Battery Pack · expired · May 6, 2025 · N2251U · Boeing 777300ER · Emergency Equipment > EMER FLASH LT 15 EA SERVICE LIFE DATE LESS THAN 135 DAYS THE FLASH LT BATTERY AT FLIGHT DECK CA SIDE, DR 1L AFT, DR 1R, DR 2R FWD&AFT, DR 2L FWD&AFT, DR 3R, DR 4L, DR 4R, DR 5L, DR 5R*2, OFCR, OFAR SERVICE LIFE LESS THAN 135 DAYS, RPL BATTERY AND OPT CHK NML. - [SDR CALA2025032603207](https://openairdocs.org/sdr/CALA2025032603207.md): Smoke Detector · false activation · Mar 24, 2025 · N2251U · Boeing 777300ER · Smoke Detection > SMOKE DETECTED & INDICATION FAULT MESSAGE SHOWS ZONE B SMOKE DETECTED SHOWS ON ALL FA DISPLAY PANEL NO FAIL INDICATED IN CPT PEFORMED FIM TASK 811 AND EXAMINED ALL LAVS AND CREW REST AREA, NO FAULTS FOUND. SMOKE DETECT DETECTION FAULT DOES NOT SHOW ON. - [SDR CALA2024120501408](https://openairdocs.org/sdr/CALA2024120501408.md): Smoke Detector · odor · Dec 3, 2024 · N2251U · Boeing 777300ER · Smoke Detection > SMOKE DETECTED LIGHTS ON AT DOOR 1R AND 2R WITHOU T TONES SMELLS OR EICAS PERFORMED ALL TEST, NO FAULTS NOTED. TESTED SMOKE DETECTORS LAVS AT DOOR 2L AND 2R ALL INDICATIONS NORMAL. REF AMM 26-13-00-730-801 - [SDR CALA2024111401140](https://openairdocs.org/sdr/CALA2024111401140.md): Control Panel · failed · Nov 12, 2024 · N2251U · Boeing 777300ER · Communications System > DOOR 1L FA CONTROL HAD A CHEM SMELL AND THEN FAILED SMOKING ORDER QUESTIONNAIRE REPORT DOOR 1L CABIN ATTENDANT PANEL INOP. DISCONNECTED CONNECTORS AMD SECURED PANEL COVER. REQUESTING DEFERRAL FOR DOOR 1L ATTENDANT PANEL. CABIN SYSTEM CONTROL PANEL (CSCP) - ME - [SDR CALA2024100900800](https://openairdocs.org/sdr/CALA2024100900800.md): Warning Message · false activation · Oct 6, 2024 · N2251U · Boeing 777300ER · Central Warning > INTERMITTENT DOOR WING SLIDE LK L STATUS MSG FOUND MAINT MESSAGES 52-22360 AND 52-21920 NOT ACTIVE. PER FIM 52-11 TASK 836 AND 52-11 TASK 837 FAULT NOT ACTIVE REF PIC AND NO FURTHER MAINT ACTION REQUIRED. - [SDR CALA2024100300743](https://openairdocs.org/sdr/CALA2024100300743.md): Idg · faulted · Sep 30, 2024 · N2251U · Boeing 777300ER · AC Generator-Alternator > OIL QTY DROPPED TO 1 ENROUTE FOUND OIL LEAK FROMRH BUG CASE DRAIN AND RH BUG AGB PAD DRAIN LINE. REPLACED RH BUG AND ACCESAAORY GEARBOX SEALOL FACE SEAL AND PERFORMED HI POWER ENG RUN. NO LEAK FOUND. REF AMM 24-25-01,72-64-01.PARTS USED: 78-7921-3-0027,QTY - [SDR CALA2024092600694](https://openairdocs.org/sdr/CALA2024092600694.md): Relay · faulty · Sep 22, 2024 · N2251U · Boeing 777300ER · Electrical Power System > DURING XFER GPU POWER TO APU POWER FOUND SEVERAL MSG MAIN BAT CH ARGER AND MAIN BAT CHARGER. XFER POWER TO GPU AND FOUND ALL MSGG ONE. SUSPECT SIU AT FAULT. WILL TRY TO SWAP 2133 SIU. REPALCE THREE SIU STILL NIL HELP PER AMM 24-09-00-000-814-002 AN D AMM 24-09 - [SDR CALA2024092500689](https://openairdocs.org/sdr/CALA2024092500689.md): Idg · faulty · Sep 22, 2024 · N2251U · Boeing 777300ER · AC Generator-Alternator > ELEC GEN OFF R EICAS ADVISORY RIGHT GENERATOR CONTROL BREAKER (GCB) OPEN OR GENERATOR CONTROL SWITCH OFF, AND ENGINE NOT SHUT DOWN. FIM TASK REF: FIM TASK REFERENCE NOT FOUND CMC MSG# 2431562 FLIGHT STATUS: L INTERMITTENCE CODE: M PH: CLIMB NARRATIVE: GENERA - [SDR CALA2024091602435](https://openairdocs.org/sdr/CALA2024091602435.md): Battery · no test · Sep 14, 2024 · N2251U · Boeing 777300ER · Emergency Lighting > R4 DOOR EMER LT BATTERY PACK M33401 CAPACITY CHK FAILED. R4 DOOR EMER LT BATTERY PACK M33401 REPLACED AND INSTALLATION TEST C/O NORMAL IAW AMM33-51-06. - [SDR CALA2024091602434](https://openairdocs.org/sdr/CALA2024091602434.md): Battery · no test · Sep 14, 2024 · N2251U · Boeing 777300ER · Emergency Lighting > L4 DR EMER LT BATTERY PACK M33400 CAPACITY CHECK FAIL TRANSFER REFER NON-ROUTINE. L4 DOOR EMER LT BATTERY PACK M33400 REPLACED AND INSTALLATION TEST CARRIED OUT WITH NORMAL RESULT AS PER AMM 33-51-06. - [SDR CALA2024040800999](https://openairdocs.org/sdr/CALA2024040800999.md): Sensor · inoperative · Mar 24, 2024 · N2251U · Boeing 777300ER · AC Generator-Alternator > LEFT HAND IDG LEVEL, QUANITY, BLANK ON MAINTENANCE PAGE SERVICED IDG, FOUND MFD DISPLAY BLANK. MUST REPAIR THE INDICATION PROBLEM WITHIN 250 FLIGHT HOURS. AMM 12-13-03600-802, ACCOMPLISHED INTERIM REPAIR FOR LEFT HAND TOMC-APPROVAL FROM SC1ELBYC COMMENT IDG - [SDR CALA2022052301327](https://openairdocs.org/sdr/CALA2022052301327.md): Circuit Breaker · inoperative · May 23, 2022 · N2251U · Boeing 777300ER · Detection System > CSCP/CACP & QUOT;SMOKE DETECTED & QUOT; INDICATION FAULT MESSAGE SH OWS G5 GALLEY HALF CARRIER BOX 503F SMOKE DETECTED MSG ON FLIGHT ATTENDANT DISPLAY PANEL CSCP CBS RESET CHECKED ALL NORMAL - [SDR CALA2021122702446](https://openairdocs.org/sdr/CALA2021122702446.md): Smoke Detector · activated · Dec 27, 2021 · N2251U · Boeing 777300ER · Smoke Detection > CREW REPORTED TO HMC: LAV 2R SMOKE ALARM ACTIVATED DURING FLIGHT; FLIGHT ATTENDANT FOUND CUSTOMER FROM SEAT 8L ATTEMPTING TO EXTINGUISH SMOKING CELL PHONE IN THE LAV TOILET; CUSTOMER ATTEMPTED TO EXTINGUISH SMOKE CONDITION BY PLACING CELL PHONE IN THE LAV SINK ## 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 = 'N2251U' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N2251U/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.