JASC 3400

Service difficulty reports · 692

Reports filed under 3400 · Navigation System, newest first.

Query with SQL
duckdb -csv -c "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 jasc_code = '3400'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR DXTA2026101210096Pitot Tube · faultedREPEAT WRITE UP. AMBER CAS EFIS MISCOMPARE AT 31000 FT. WE ALSO GOT THE ALT BOXED FLAG ON PFD 1 AND PFD 2. AT 31000 FEET THE ALTIMETER SPLITS BETWEEN ONE AND TWO WAS 160 FEET. REPEAT. PHASE OF FLIGHT CRUISE. R & R FAULTY RT PITOT PROBE IAW AMM 34-11-01. ACCOct 8, 2026 · N797QS · Bombdr BD1001A10SDR CALA2026083119069Adm · faultedALTIMETER DISAGREE- EICAS DISPLAYED..CAP 300 LOWER THAN FO ALT AT FL270.. ON DEBRIEF FROM CREW FTL WAS 25,000 FT. CAPTAINS ALTIMETER READING 300 HIGHER THEN F/O SIDE PER CREW BRIEFING, CA SIDE WAS 300 HIGHER THAN STBY AND FO. BOTH STBY AND FO READINGS WERE THEAug 28, 2026 · N69059 · Boeing 767424ERSDR CALA2026082618926Adiru · faultedTCAS FAIL, BOTH CHANNELS. DEBRIEF WITH CREW, TCAS FAILED AT 15000 FT, CREW PUT IN ALT, 1 & 2, NO HELP. NO MSSG AT THIS TIME. TCAS STATUS MESSAGE PRESENT, NOT ACTIVE ON MAT. FAULT INTERMITTANT IAW FIM 34-21 TASK 848. RECOMMEND REPLACE ADIRU IAW FIM DUE TO HIAug 23, 2026 · N228UA · Boeing 777222SDR SWIA2026073176932Antenna · out of limitsCOMPLY WITH FWD ATG ANTENNA PERMANENT REPAIR REF. DRAWING 170-2365-02-RS AND M-93 ERJ175-53-26-03 (EA ERJ4111-44) (C-CHECK RO 08/19/2026)COMPLIED WITH FWD ATG ANTENNA PERMANENT REPAIR REF. DRAWING 170-2365-02-RS AND M-93 ERJ175-53-26-03 (EA ERJ4111-44) REPJul 31, 2026 · N84378 · Emb ERJ170200LLSDR SWIA2026073176931Antenna · out of limitsCOMPLY WITH AFT ATG ANTENNA PERMANENT REPAIR REF. DRAWING 170-2365-02-RS AND M-93 ERJ175-53-26-03 (EA ERJ4111-44) (C-CHECK RO 08/19/2026)COMPLIED WITH AFT ATG ANTENNA PERMANENT REPAIR REF. DRAWING 170-2365-02-RS AND M-93 ERJ175-53-26-03 (EA ERJ4111-44) REPJul 31, 2026 · N84378 · Emb ERJ170200LLSDR SWIA2026073176930Antenna · out of limitsCOMPLY WITH LT SIDE ATG ANTENNA PERMANENT REPAIR REF. DRAWING 170-2365-02-RS AND M-93 ERJ175-53-26-03 (EA ERJ4111-44) (C-CHECK RO 08/19/2026)COMPLIED WITH LH SIDE ATG ANTENNA PERMANENT REPAIR REF. DRAWING 170-2365-02-RS AND M-93 ERJ175-53-26-03 (EA ERJ4111-44Jul 31, 2026 · N84378 · Emb ERJ170200LLSDR SWIA2026073176929Antenna · out of limitsCOMPLY WITH RH SIDE ATG ANTENNA PERMANENT REPAIR REF. DRAWING 170-2365-02-RS AND M-93 ERJ175-53-26-03 (EA ERJ4111-44) (C-CHECK RO 08/19/2026)COMPLIED WITH RH SIDE ATG ANTENNA PERMANENT REPAIR. REF DRAWING 170-2365-02-314 APPENDIX A. REPAIR PARTS WEIGH 398 GRJul 31, 2026 · N84378 · Emb ERJ170200LLSDR CALA2026080218186Charger · inoperativeISFD WILL NOT TURN ON. PERFORMED TROUBLESHOOTING IAW FIM 34-24-00-2, TASK 804, & WDM 34-24-15. FOUND NO OUTPUT VOLTAGE ON D4331J B12. REMOVED ISFD DEDICATED BATTERY CHARGER IAW AMM 34-24-03-000-801 AND AMM 20-10-07-000-801. INSTALLED SERVICEABLE ISFD DEDICAJul 31, 2026 · N63820 · Boeing 737924ERSDR ABXA20260723333Iru · faultedCREW ABORTED T/O AT 5KTS DUE TO AN IRU GOING OFFLINE WHICH AFFECTED THE NAVIGATION. AFTER ABORTING T/O, THE ISSUE CLEARED. AFTER CHECKING WITH MAINTENANCE CONTROL IT WAS DETERMINED THEY COULD CONTINUE SINCE THE ISSUE CLEARED. A/C RETURNED TO SERVICE.Jul 23, 2026 · N760CK · Boeing 767341SDR CALA2026052716560Warning Message · false activationILS 22L EWR GS NEVER CAPTURE THEN DISSAPEAR AT 1500FT ESFR REQUIRED DUE TO CREW ADVISING THEY HAD TO PERFORM A GO-AROUND FOR ILS AND GS ISSUE REMOVED SFR REQUIRED, NOT REQUIRED PER GMM 04-20-05. PERFORMED ILS OPERATIONAL TEST NO FAULTS FOUND REF 34-31-00-710-8May 26, 2026 · N27283 · Boeing 7378SDR CALA2026052716564Adiru · faultedON ROTATION R IRS FAULT LIGHT ILLUMINATED. DOES NOT EXTINGUISH COMPLETED ADIRU BITE FIM TASK 34-21 TASK 801, CURRENT STATUS R ADIRU, REPLACED RT ADIRU, OPS CHECK GOOD MM 34-21-00May 25, 2026 · N39728 · Boeing 737724SDR S2KA202604290001Indication Sys · faultedMOMENTARY LOSS OF AIRSPEED AND ALTIMETER. HAPPENED 2 TIMES IN FLIGHT.Apr 28, 2026 · N724SA · Lear 31ASDR TSAA2026042400002Symbol Generator · failedCAPTAINS SIDE EFIS DISPLAYS WENT BLANK. NR 1 SG FAILED.Apr 24, 2026 · N405YK · Boeing 737436SDR CALA2026041715460Adiru · faultyTCAS EICAS AND -TCAS FAI L- ON ND. TRIED L/R CYCL ED. NO HELP. C ALLED TOMC MMSG 34-28801 CAPTURED IN AHM BUT NOT AUTOMATICALLY CORRELATED TO TCAS FAILURE ADVISORY/STATUS. IN FIM THIS MMSG DOES CORRELATE TO OBSERVED TCAS FAILURE. OTHER ADIRU FAULTS CAPTURED INApr 15, 2026 · N228UA · Boeing 777222SDR ANCF20260413008Receiver · faultedLOSS OF COMPLETE NAVIGATION AFTER TAKE OFF, IAW AMM 34-36-00-860-801-A RESET OF THE MULTI MODE RECEIVER WAS PERFORMED TEST SATISFACTORY IAW AMM 22-96-00-710-001-A OPERATIONAL TEST OF THE AFS WAS PERFORMED AMM REV 76 TEST PASSED FAC 2 FMGC 1 AND 2 PASSED FOR OApr 11, 2026 · N954AV · Airbus A320214SDR R61A2026041000103Mau · failedON FINAL APPROACH AVNX MAU 2A FAIL, AVNX MAU 3B FAIL, DC BUS 2 OFF, AND NUMEROUS ASSOCIATED MESSAGES. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. PERFORMED OPS CHECK, OPS CHECK GOOD. "Apr 10, 2026 · N227JQ · Emb ERJ170200LRSDR VNAA2026032414702Panel · odorUNIDENTIFIED BURNING SMELL. SUSPECT PBS PANEL / REMOVED AND REPLACED PBS IAW CRJ 900 AMM 23€“32€“01€“000/400€“801. NO FURTHER SMELL FOUND. RAN PACKS AND RECIRCULATING FANS.Mar 22, 2026 · N615NN · Cndair CL6002D24SDR TSAA2026030900001Symbol Generator · failedNR 1 SYMBOL GENERATOR FAILED.Mar 7, 2026 · N405YK · Boeing 737436SDR CALA2026022414051Navi Database · disengagedVNAV DISENGAEGED AFTER TAKEOFF. WAS ABLE TO RENGAGE THROUGH ABT 7000 FEET PICTURE ATTACHED PERFORMED SENSOR STATUS CHECK ON BOTH FLIGHT MANAGEMENT COMPUTERS AND BOTH THE LEFT AND RIGHT FMC FAILED THE NETWORK FILE SERVER. FOLLOWED FIM 22-11 TASK D21. FOUND MSG Feb 21, 2026 · N17326 · Boeing 7378SDR CALA2026021813869Adiru · faultyACFT RELEASED BACK TO SERVICE AFTER EXPERIENCING A DIVERSION O R AIR TURN BACK DUE TO A MECHANICAL REASON LOCKED BY SYSTEM. AIR DATA INERTIAL REFERENCE UNIT - INSTALLATION, AMM REFERENCE: TASK 34-21-01-400-801, OPS CHECK OK. PERF LAND VERIFY TEST,AMM REFERENCEFeb 15, 2026 · N13716 · Boeing 737724SDR SWIA2026020775317Antenna · corrodedFOUND CORROSION AROUND 3 SCREW HOLES UNDER LH ATC L-BAND ANTENNA (C-CHECK RO 02/22/2026)REPAIRED CORROSION AROUND 3 SCREW HOLES UNDER LH ATC L-BAND ANTENNA WITH REFERENCE TO REO 670-53-21-2811 REV "--" DATED 2026-02-08 "DISPOSITION FOR BLENDED DAMAGE TO UPPEFeb 7, 2026 · N613SK · Cndair CL6002C10SDR DALA2026020200757Mmr · not reportedREMOVED MMR 2 IAW ER/A 625937-14. INSTALLED MMR 2 PER ER/A 625937-14 REV. B (1428881)Jan 31, 2026 · N967AT · Boeing 717200SDR 141A2026013000001Coordinator · faultedAFTER TAKING OFF FROM HRO TO FLY TO DFW MY SELF FO NOTICED THE PIC SIDE HEADING COORDINATOR WAS SWINGING ERRATICALLY AND THE RED HEADING FLAG WAS DISPLAYED. AFTER TALKING IT OVER WITH HIM WE MADE THE DECISION TO TURN AROUND TO GO BACK TO HRO SINCE WE WASN’T TOJan 30, 2026 · N803F · Cessna 208BSDR DXTA2026010906468Air Data Module · faultedAT FL360 WE RECEIVED AMBER EFIS MISCOMPARE WITH AMBER ATL. THE RIGHT SIDE READ 200¿ LOWER THAN THE LT & STANDBY. WHEN SELECTING AIR DATA 1 PER THE CHECKLIST. RECEIVED FOLLOWING CYAN FAULTS: FLAPS FAULT, R ENG THRUST FAULT, L ENG THRUST FAULT, STAB TRIM FAUJan 6, 2026 · N749QS · Bombdr BD1001A10SDR SIMA202512296001Reference Unit · failedLOST MULTIPLE NAV SYSTEMS AT 11,000FT WE LOST AUTO THROTTLE AND SHORTLY AFTER, AUTOPILOT FAILED. A FEW MINUTES LATER IRS 2 FAILED ALONG WITH FO ATTITUDE INDICATOR. APPR 1 AND APPR 2 NOT AVAILABLE MESSAGES APPEARED SUBSEQUENTLY ALONG WITH STICK SHAKER ANTICIPATDec 26, 2025 · N750BD · Emb ERJ170100SESDR R61A2025121600546Power Supply · faultedDURING DECENT INTO JFK THEY HAD A MAU2B FAIL, RECEIVED MULTIPLE FAULT MESSAGES ELE L AND R FAIL, GND PROX FAIL, ADS 2 FAIL, TERRAIN FAIL, WINDSHEAR FAIL, ADSP 3 FAIL, TAT 2 FAIL EMERGENCY DECLARED, LANDED WITHOUT INCIDENT, REMOVED AND REPLACED POWER SUPPLY ON Dec 20, 2025 · N131HQ · Emb ERJ170200LRSDR 3EJA202601150007Static Line · faultedWE LOST THE CAPTAIN AND FO’S ALTITIMER, ALTITUDE SELECT AT NIGHT IN MOUNTAINOUS TERRAIN. PURGED PILOT AND COPILOT STATIC SYSTEM, FOUND PILOT SIDE FITTING ON THE MOISTURE DRAIN VALVE LOOSE.Dec 18, 2025 · N839JS · Cessna 560XLSDR YENA2025121501201Control Panel · odorFLT#1007, BOS-BNA. AT FL 360 A STRONG ELECTRICAL ODOR WAS IDENTIFIED. ABOUT 5 MIN LATER SMOKE WAS COMING OUT OF GLARE SHEILD BEHIND THE VERTICAL SPEED DN + UP CONTROL WHEEL. SMOKE APPEARED 3 TO 4 TIMES DURING DECENT; INSPECTED WIRING AND COMPONENTS BEHIND AND Dec 14, 2025 · N3276J · Airbus BD5001A11SDR K11A2025120200361Control Panel · faultedMODE CONTROL PANEL FROZE IN FLIGHT, WITHOUT THE ABILITY TO CHANGE ANY MODE (COURSE) ALT, HLD, SPEED, N1, HDG SEL, LNAV, VNAV, FD MASTER SIDE. AUTO THROTTLE CONTINUED TO WORK. AUTO PILOT A OR B WOULD NOT ENGAGE. AWAITING TROUBLESHOOTING. OPENDec 2, 2025 · N403CK · Boeing 7374Q8SDR CALA2025120211689Switch · out of positionAIRSPEED INDICATION ON BOTH CAPT'S AND FO SIDES LIMITED TO 265 KTS PER CREW REPORT. ON ARRIVAL, INSPECTED E&E COMPARTMENT AND FOUND S591 ALTERNATE VMO/MMO SWITCH IN ALTERNATE POSITION. THIS POSITION LIMITS VMO/MMO BARBER POLES. POSITIONED SWITCH TO NORMAL ANDNov 27, 2025 · N665UA · Boeing 767322SDR ANCF2025111835Gpws · abnormalGPWS FAULT AND ALERTING INFLIGHT DURING CLIMB - GPWS AS PER AMM 34-36-31--000-001/400-001 MMR 1 WAS REPLACED OPERATIONAL TEST WAS ACCOMPLISHED CAT III TEST WAS PERFORMED TEST OKNov 18, 2025 · N743AV · Airbus A320214SDR IPXA2025110741913Fwc · faultedAIR TURN BACK, AFTER TAKEOFF, RECEIVED IAS DISCREPANCY. ALT DISCREPANCY, TAT FAULT & FUEL. AFT TO TRANSFER NOT AVAILABLE. NUMEROUS SELCAL AUDIO TONES. ALT ALERT €ŒC€? CHORD SOUNDED 9000 FEET FROM TARGET ALTITUDE. CLEANED AND RESEATED FWC AND ACCOMPLISHED OPENov 6, 2025 · N147UP · Airbus A300F4622RSDR CHIA202510229834Encoder · arcedAIRCRAFT RETURNED TO BASE, WITH PILOTS REPORTING A BURNT ELECTRICAL SMELL, AND DIMMED EHSI. INSPECTED EHSI, AND ASSOCIATED WIRING, FINDING NO SIGNS OF DAMAGE. ULTIMATELY FOUND ALTITUDE ENCODER IN LH AVI CLOSET LOOSE FROM IT'S MOUNT PLATE, AND SIGNS OF ARCING TOct 21, 2025 · N168CH · Boeing 1072SDR VNAA20251015076Cleat · corrodedAV SUPPORT CLEAT ON STR21R AT FS333.00 IS SEVERELY CORRODED. REMOVED AND REPLACED SUPPORT CLEAT IAW CRJ-700 SRM'S 51-42-06-001-001-A01, 51-42-21-001-001-A01, AND 51-40-11-001-001-A01.Oct 17, 2025 · N501BG · Cndair CL6002C10SDR 2025FA0000760Solenoid · corrodedI MOVED THE GEAR LEVER INTO THE UP POSITION AFTER TAKEOFF IN VFR CONDITIONS. THE PANEL INDICATED A LOW VOLTAGE WARNING THEN THE GLASS PANEL (G500, GTN 750/650, EDM 900) WENT BLANK ALONG WITH OTHER ELECTRICAL DASH INDICATIONS INCLUDING THE GEAR LIGHTS. I CYCLEOct 12, 2025 · N366HP · Beech A36SDR ABXA20250920234Module · faultedON TAXI OUT, WARN ELEX MSG APPEARED AND WAS UNABLE TO RESET. ACFT RETURNED TO THE GATE (BTB) AND MAINTENANCE GROUNDED ACFT , MTX PERFORMED BITE PROCEDURES 31-51 TREE 801 MSG CLEARED A/C OK FOR SERVICE. ACFT RETURUNED A SECOND TIME AND MESSAGE WAS CLEARED, FOSep 20, 2025 · N650GT · Boeing 767231SDR CALA2025090408479Adiru · faultyLEFT IRS FAULT. UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. INTERGATED MX PAGES AND FOUND STATUS MGS "STALL WARNING SYS L". CHECKED INBOUND FAULTS, ALL FAULTS ARE NOT ACTIVE EXCEPT THE FAULT FOR STALL WARNING SYSep 1, 2025 · N27260 · Boeing 7378SDR AALA202508181923Adiru · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO BOS DUE TO THE FLIGHT CREW REPORTING THAT ON INITIAL CLIMB OUT GOT NAV FM/GPS POS DISAGREE. CAPTAIN SIDE NAV LOOKED NORMAL; FO SIDE NAV WAS MALFUNCTIONING. STOPPED CLIMB TO ASSESS, TAug 17, 2025 · N157UW · Airbus A321211SDR FXTA20250815001Ahrs · faultedAHRS #1 & 2 FAILED, HEADING RED "X", LOSE OF SYNTHETIC VISION; GRS #1 S/N: 45T003846, GRS #3 S/N: 45T003702, GMU #1 1CM0333444. GMU #2 S/N: 1CM033471, REMOVED, INSPECTED, REINSTALLED. AHRS SYSTEM POST-MX CHECK PERFORMED. AHRS ADJUSTMENT/TEST, PITCH/ROLL OFFSETAug 13, 2025 · N190BA · Cessna 208BSDR 2025F00211Guide · missingFOUND G1000 GUIDE MISSING, RETURNED TO GATE AND MX REPLACEDAug 12, 2025 · N958SP · Cessna 208BSDR SWIA202512090716Antenna · corrodedADF ANTENNA HAS CORROSION AROUND FASTENER HOLES. REPAIRED AREA AROUND ADF ANTENNA FASTENER HOLES IAW REO 670-53-31-1065 REV -. INSTALLED 4EA LOCK FASTENERS IAW SRM 51-42-21-001-001-A01, REV 38.Jul 16, 2025 · N558GJ · Cndair CL6002C11SDR SIMA20250714001Module · failedDURING TAKEOFF AND BELOW 80 KNOTS MASTER CAUTIONS GND PROX FAIL, TERRAIN FAIL, AND WINDSHEAR FAIL APPEARED. REJECTED TAKEOFF INITIATED AND AIRCRAFT REACHED A SPEED OF 110KIAS MAX. MASTER CAUTIONS EXTINGUISHED AS THRUST LEVERS WERE PULLED BACK TO IDLE. THRUST RJul 14, 2025 · N279MQ · Emb ERJ170200LRSDR SIMA20250615001Indication Sys · faultedREJECTED TAKEOFF JUST PAST 80KTS. DURING ROLL ALL TAKEOFF DATA DROPPED OUT. NO BRAKE OVERTEMP PEAK TEMP 398. NO TO DATA EICAS MESSAGE APPEARED AFTER INITIALIZING REJECTION. RE ENTERED T/O DATA NO DEFECTS NOTED REF FIM TASK 76-00-00-810-801-AJun 15, 2025 · N217NN · Emb ERJ170200LRSDR 3EJA2025091701125Power Supply · failedAT CRUISE, 43000’ LEVEL FLIGHT, MAU #1 FAIL ANNUNCIATOR CAME ON. GAINED ACCESS TO MAU. R & R FAULTY POWER SUPPLY WITH INSPECTED POWER SUPPLY.Jun 11, 2025 · N938JS · Cessna 680CESDR FXTA20250610001Indicator · faultedHEADING INDICATOR RED "X" THEN CAME BACK IN A FEW MINUTES, ALL WHILE ON THE GROUND. SYNTHETIC VERSION ALSO LOST BECAUSE OF RED "X". TROUBLESHOOT AND COULD NOT DUPLICATE.Jun 9, 2025 · N190BA · Cessna 208BSDR SCNA20250609202Clamp · unsecureWORK ORDER 88477, NR00094:  DURING GROSS INT. HYD. SYS. LEAKAGE CHECK,  WHEN PLACING AMP.-CLAMP IN EMDP RELAY (P92), IT CREATED AN ELECTRIC ARC AND FLAMED THE COATING OF THE CABLES. CABLES IN P92 WERE REPAIRED PER B737-800 SWPM 20-10-13 AND EMDP TEST WAS PERFJun 8, 2025 · N841SY · Boeing 7378SDR CALA2025052905086Indicator · faulty*A/R* DUE TO LOSS OF ALTITUDE AND SPEED READOUTS ON THEIR INTEGRATED STANDBY FLIGHT DISPLAY.ISFD SPEED AND ALTITUDE FLAGS REPLACED ISFD. OPS. CK. GOOD. TEST RESULT DISPLAYS TEST OK. REF AMM-34-24-02-400-801.May 26, 2025 · N76010 · Boeing 777224SDR 454A20250519001Efis · interferenceWHILE PASSING OVER A 5G COMMUNICATIONS TOWER, JUST EAST ON HCA KINGWOOD HOSPITAL, KINGWOOD, TX, THE HELICOPTER HAD AN ARRAY OF CAUTIONS WITH THE GENESIS. THE PIC STATED, “JUST STARTED THROWING ALL KINDS OF CAUTIONS ON THE GENESIS AND THEN KICKED OFF MY UPPER MMay 19, 2025 · N491HC · Bolkms BK117C2SDR AALA202505135812Computer · faultedAIRCRAFT WAS GROUNDED: WHILE MAINTENANCE WAS PERFORMING AVIONICS VENTS RESETS, STRONG BURNING ELECTRICAL SMELL IN FLIGHT DECK. FOUND SOURCE OF ODOR TO BE AVIONICS FANS OVERHEATING DUE TO SKIN AIR VALVES NOT OPENING. INTERROGATED MCDU AND FOUND SKIN AIR OUTLET May 12, 2025 · N9015D · Airbus A319115SDR CALA2025051204618Switch · out of positionAIRSPEED INDICATORS SHOWING/RED LINING AT 268 KNOTS CREW DEBRIEF REPORTS AIRSPEED INDICATON ON ALL FLIGHT DECK INDICATORS MATCHED. ON TAKEOFF AIRSPEED WAS NORMAL WITH FLAPS DOWN, CREW RETRACTED FLAPS AND NOTICED AIRSPEED RED FLAG SHOWED AT 268 KNOTS. WHEN CREWMay 8, 2025 · N17133 · Boeing 757224
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