JASC 3412

Service difficulty reports · 254

Reports filed under 3412 · Outside Air Temperature Indicator/Sensor, 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 = '3412'
  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 CALA2026091519424Tat Probe · faultedLOSS OF ALL TAT DATA CLIMBING THROUGH 330 LOSS OF AP/AT LNAV/VNA V TCAS/WINDSHEAR TROUBLESHOT IAW SSM 34-12-01-103. FOUND TAT PROBE TS161L AT FAULT. R & R TAT PROBE IAW AMM 34-12-02-401. PERFORMED TAT PROBE TEST IAW AMM 34-12-02-404-008. PROBE TESTED GOOD. OTHSep 13, 2026 · N671UA · Boeing 767322SDR CALA2026082418859Adiru · faultedREPEAT GRIPE OF IR-1 AFTER TAKEOFF. DEBRIEFED PILOT, AFTER TAKEOFF, IR-1 FAULTED. CAPT FOLLOWED QRH AND SWITCHED TO CAPT 3 FOR THE IR BACKUP BUT NO HELP. CAPTAIN`S HAD RED X EVEN AFTER SWITCHING TO CAPT 3. REPLACED NR 1 ADIRU IAW AMM 34-12-34. OPS CHKD GOOD.Aug 21, 2026 · N496UA · Airbus A320232SDR SWIA2026051276027Tat Probe · deformedSKIN AROUND NR 1 TAT PROBE DEFORMED DUE TO BIRD STRIKE DAMAGE. (FLIGHT 5403) UPON INSPECTION, FOUND THE DEFORMATION ON THE FWD FUSELAGE NR 1 LT TAT INTERNAL MOUNTING PLATE AND NR 1 TAT PROBE ITSELF AND NOT THE FUSELAGE SKIN AROUND THE PLATE & PROBE. PERMay 12, 2026 · N85374 · Emb ERJ170200LLSDR CALA2026041315316Tat Probe · faultyPROBE HEAT LIGHT COMES ON TEMP PROBE LIGHT ILLUMINATED IN CRUISE. DIVERTED TO LAX TO AVOID ICING CONDITIONS. REPLACED TAT PROBE IAW AMM 34-21-06/401 AND ACCOMPLISHED PROBE HEAT SYSTEM TEST PER AMM 30-31-00, CKS OKAY.Apr 11, 2026 · N47330 · Boeing 7378SDR CALA2026031614595Tat Probe · faultedAFTER TAKEOFF WE LOST VNAV AND ALL FUEL TIME AND DISTANCE DATA. A/T THRUST LIMIT BITE CHECK FMC LEFT AND RIGHT OPS CK OK. T/S OMF TO FAULT CODE 73-43830 TAT FAULT PICKED UP BY BOTH ENGINE 1&2 EEC. REMOVED AND REPLACED TAT REF AMM 34-21-06 NO FAULTS NOTED AT THMar 12, 2026 · N37507 · Boeing 7379SDR AALA202602039460Tat Probe · overheatedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: DURING CRUISE AT 360 TEMPERATURE PROBE LIGHT ILLUMINATED. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT STL. REMOVE AND REPLACED TAT PROBE. PER AMM 34-21-06. OPS CHECK GOOD.Jan 31, 2026 · N323RM · Boeing 7378SDR SWAA2025101323837Tat Probe · out of toleranceIAS DISAGREE ON TAKEOFF. R+R TOTAL AIR TEMPERATURE PROBE PER MM 34-21-06.Oct 11, 2025 · N7715E · Boeing 7377BDSDR ABXA20251007258Probe · defectiveDURING 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 / Oct 7, 2025 · N390CM · Boeing 767381SDR 2025F00220Gyro · faultedNAV ADR 1 FAULT ON ECAM DURING TAKE OFF (REJECTED TAKE OFF) AT SPEED OF 90 KTSSep 11, 2025 · N728AV · Airbus A320214SDR AALA202509082697Tat Probe · faultedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INROUTE TO LGA DUE TO THE FLIGHT CREW REPORTING THAT AFTER LEVEL, AIRCRAFT WENT INTO CWS P. AUTO TILT FAIL ON ND, FOLLOWED BY NO TAT ON ENG DISPLAY. THE AIRCRAFT LANDED SAFELY AT LGA WITHOUT FURTHER INCIDENT. MASep 7, 2025 · N891NN · Boeing 737823SDR HNAA2025081100537Relay · failedON TAKE OFF ROLL TAT 2 HEAT INOP, E1-2 IDLE STOP FAIL AND NO TAKE OFF CONFIG MSGS DISPLAYED ON EICAS. NO AURAL MSG DENOTED WITH NO TAKE OFF CONFIG MSG. TAT 2 HEAT INOP AND E 1-2 IDLE STOP FAIL MSGS INTERMITTENT ON TAXI BACK TO GATE. FACT 10AUG25 04:02 PHAug 10, 2025 · N641AE · Emb EMB145LRSDR ASMF2025072300517Probe · faultedREJECTED TAKE OFF DUE TO AIRSPEED UNRELIABILITY / MASTER CAUTION"EEC ENGINE 1" / TAT PROBE REPLACEDJul 23, 2025 · Boeing 7378SDR CALA2025032103068Probe · faultedLEFT TEMP PROBE LIGHT ILLUMINATED. MEL 3031D TAT PROBE HEATER INOP. . R&R TEMP PROBE PER AMM TASK 34-21-06 AND ALL OPS CHECKED GOODMar 19, 2025 · N17321 · Boeing 7378SDR CALA2025030702645Tat Probe · faultedTAT PROBE AUTOTHROT DISC COMPLIED WITH QRH REM/REPL TAT PROBE SENSOR IAW B767-3 AMM 34-12-02-404-008. TAT PROBE TESTS GOOD IAW AMM 34-12-02-864-027. REM/REPL (AIR/GND) RELAYS K411 & K514 REF. B767-3 SSM 30-33-01-101 AS A PRECAUTIONARY MEASURE. REM/REPL (AIR/GNMar 5, 2025 · N648UA · Boeing 767322SDR HNAA2025021900088Sensor · faultedTAT 1 HT INOP MSG DISPLAYED AFTER TAKEOFF EXTINGUISHED AFTER LANDING. FACT 18FEB25 06:55 PHL T/S USIING FIM TASK 30-33-00-810-801-A FROM STEP 1-8 FAILURE OF TAT SENSOR 1 (PROBE). R/R TAT SENSOR 1 PROBE IAW AMM 34-15-03. OPS CHECK GOOD ALL OK FOR SERVICE.Feb 17, 2025 · N905JH · Emb EMB145LRSDR CALA2025012902102Tat Probe · faultyRIGHT TAT PROBE EICAS MSG ITEM UPDATED IN ORDER TO FLAG SDR. AC RETURN TO GIG AS AN AIR RETURN ON AN EMERGENCY CONDITION. R TAT PROBE WITH ASSOCIATED R TAT FAULT LIGHT ON. BOTH L AND R TAT CB'S A28 AND A15 RE SET AT OVERHEAD PANEL. L TAT IS STILL AVAILABLE. REJan 27, 2025 · N78060 · Boeing 767424ERSDR CALA2025012900223Tat Probe · malfunctionedR TAT PROBE EICAS MSG ITEM UPDATED IN ORDER TO FLAG SDR. AC RETURN TO GIG AS AN AIR R TAT PROBE WITH ASSOCIATED R TAT FAULT LIGHT ON. BOTH L AND R RETURN ON AN EMERGENCY CONDITION. TAT CB'S A28 AND A15 RE SET AT OVERHEAD PANEL. L TAT IS STILL AVAILABLE. REPLAJan 27, 2025 · N78060 · Boeing 767424ERSDR DALA2025012100502Relay · faultedSHIP 5656 -DIV/DE- TO ATL DUE TO TAT PROBE MESSAGE. CORRECTIVE ACTION: REPLACED TAT PROBE CURRENT SENSE RELAY K410.Jan 17, 2025 · N556NW · Boeing 757251SDR ABXA20241011186Tat Probe · failedCREW REPORTED EICAS MSG "TAT PROBE" INFO: NO A/T, NO L NAV, NO V NAV DURING CLIMB STAGE AND PERFORMED AN AIR TURNBACK. MTC GROUNDED THE AIRCRAFT , REMOVED AND REPLACED TAT PROBE IAW B767 AMM 34-12-02 OPS CHECK WAS GOOD. AIRCRAFT WAS RETURNED TO SERVICE.Oct 11, 2024 · N1229A · Boeing 767306SDR CALA2024100400751Probe · faultedTAT AT 99 LOST LNAV/VNAV AT T/O LOST N1 LIMITS AND ENG 1/2 AIR DATA REPLACED TAT PROBE REF AMM TASK 34-21-06-000-801, OP CHECKS GOODOct 2, 2024 · N27273 · Boeing 7378SDR CALA2024070501965Hose · leakingFO ALTIMETER SPLIT FROM CAPTAIN. CAPTAIN SIDE IS CORRECT LOCKED UNLOCKED. PERFORMED FULL RANGE PITOT-STATIC LEAK CHECK & FOUND FO STATIC E2 RACK AFT SIDE DRAIN VLV LEAKING. REMOVED DRAIN VLV HOSE & CAPPED STATIC LINE, LEAK CHECK PASSED. REINSTALLED THE DRAIN Jun 30, 2024 · N48127 · Boeing 757224SDR AALA202405298176Tat Probe · failedAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ON CLIMB MULTIPLE FAILURE WITH AUTO THROTTLE, TEMP CONTROL, AND OTHER FAILURES; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT TUL. FOUND FAULT TAT PROBESIGNAL FAIL. REMOVED AND REPLACED TAT PROBE. OPERTIONALMay 28, 2024 · N826NN · Boeing 737823SDR DALA2024031103195Tat Probe · damagedSHIP 3127 DURING LIGHTING STRIKE INSPECTION FOUND LT TAT PROBE DAMAGED. CORRECTIVE ACTION: R&R LT TAT PROBE PER A319 AMM 34-11-18. OK FOR CONT. SERVICE. (0235608)Mar 8, 2024 · N327NB · Airbus A319114SDR IPXA2023121901449Unknown · unknown*** DIVERSION *** AT APPROX V/R CAPT PFD DISPLAYED WINDSHEAR WITH FULL SCALE A/S AND ALT DEVIATIONS OVERSPEED, RUDDER RATIO AND MACH SPEED TRIM EICAS ILLUMINATED. F/O PFD WAS NORMAL. A/T WERE DISENGAGED TO STOP A/T FLU C/W 30 CHECK IAW MM 34-12-00-715-001, 22-Dec 19, 2023 · N427UP · Boeing 75724APFSDR AALA202306163183Tat Probe · faultyAIRCRAFT WAS GROUNDED: ON TAKEOFF LOST N1 REFERENCE READ OUT ON DISPLAYS, LOST FIRST OFFICERÏ¿½S FLIGHT DIRECTOR, AND AUTO THROTTLES FAILED. EMERGENCY DECLARED; FLIGHT RETURNED TO DFW LANDING SAFELY. **SUPPLEMENTAL REPORT FOR AALA202306153183: MAINTENANCE FOUNJun 13, 2023 · N916AN · Boeing 737823SDR IPXA2023011990061Sensor · faultedATB, EMERGENCY DECLARED, TAT PROB EICAS AT 400 FT AGL. REMOVED AND REPLACED TAT PROBE, OPS CHECK GOOD IAW AMM 34-12-02.Jan 19, 2023 · N474UP · Boeing 75724APFSDR 2023F00000Probe · faultedA/T LIM MSG ON UPPER DU (NO VNAV AVAILABLE, NO A/T AVAILABLE) BITE MSG 73-31-711 BITE MSG 73-11-282 (MOT 1) TAT FAIL PROBE. CORRECTIVE ACTION: TAT PROBE REMIVED AND REPLACED.Dec 9, 2022 · Boeing 7377Q8SDR AALA202207190706Tat Probe · defectiveAIRCRAFT WAS GROUNDED: DURING TAKE OFF ROLL AT DFW BOTH ENGINES WERE EXTREMELY SLOW TO ACCELERATE. AUTO BRAKES DIDN'T ACTIVATE. FLIGHT MANAGEMENT AND GUIDANCE COMPUTER REMAINED IN TAKE OFF PAGES. SPEED ESTIMATED BETWEEN 60 TO 70 KNOTS. TAKE OFF WEIGHT 143.7 WJul 15, 2022 · N822AW · Airbus A319132SDR AALA202207197413Tat Probe · defectiveAIRCRAFT WAS GROUNDED: DURING TAKE OFF ROLL AT DFW BOTH ENGINES WERE EXTREMELY SLOW TO ACCELERATE. AUTO BRAKES DIDN'T ACTIVATE. FLIGHT MANAGEMENT AND GUIDANCE COMPUTER REMAINED IN TAKE OFF PAGES. SPEED ESTIMATED BETWEEN 60 TO 70 KNOTS. TAKE OFF WEIGHT 143.7 WJul 15, 2022 · N822AW · Airbus A319132SDR IPXA2022061783207Avionics Unit · inoperativeINSPECTION TYPE:N/A**ATB** - ON CLIMB OUT ABOVE 10,000 FEET THE AIRSPEED TAPE VMO/MMO (CHECKERED TAPE) WOULD NOT GO ABOVE 265KIAS. AFTER SPEAKIN WITH FLIGHT CONTROL AND AMC THE DECISION WAS MADE TO AIR TURN BACK.TOGGLED VMO SWITCH ACCOMPLISHED OPS CK PER AMM 3Jun 17, 2022 · N470UP · Boeing 75724APFSDR QXEA2022041800158Eicas · fault messageSTANDBY ISI INSTRUMENT AIRSPEED AND ALTITUDE WAS FLUCTUATING IN FLIGHT AND ON THE GROUND. CREW NOTICED AIRSPEED 280 KTS AT 18,000 FEET AND CONTINUED TO INCREASE AS WE CLIMBED. DIVERTED AN ACCOMPLISHED UNEVENTFUL LANDING. REMOVED FROM SERVICE. REMOVED ISI ANDApr 17, 2022 · N403QX · Bombdr DHC8402SDR CALA2022041400983Sensor · failedADR 1 FAULT ON CLIMBOUT REPLACED #1 ADR REF AMM 34-12-34-400-001, GROUND CHECKS OK. ADD EMP:U303859 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1133095 SN OFF 9498 IPC REFERENCE # 34-34-12 UNIT, AIR DATA OFF 31-3411-9-0002 6775 ON 31-3411-9-0002 0669Apr 14, 2022 · N852UA · Airbus A319131SDR UIEA2022032600242Aoa · failedCREW REPORTED AUTOPILOT FAILURES, SINGLE IRU MODE, MULTIPLE ADC ISSUES, WHICH WERE CONFIRMED IN AHM.(<P ><SPAN>REPLACED LEFT AIR DATA COMPUTER. DURING OPS CHECK, LEFT ANGLE OF ATTACK SENSOR FAILED. REMOVED AND REPLACED LEFT ANGLE OF ATTACK SENSOR IAW AMM 34-12Mar 26, 2022 · N492MC · Boeing 74747UFSDR AALA202112103496Tat Probe · faultyAIRCRAFT WAS NOT GROUNDED: ICING ISSUE WITH PROBE HEATER ON MEL, FLIGHT RETURNED TO FIELD. **SUPPLEMENTAL REPORT: REPLACED TOTAL AIR TEMPERATURE PROBE IAW AMM 34-21-06, OPS CHECK GOOD.** (CLOSED)Dec 2, 2021 · N957AN · Boeing 737*SDR CALA2021092001607Tat Probe · faultedTAT AND SAT INDICATING 20 C HIGH REPLACED TAT PROBE PER MM 34-12-02. TEST OK. ACCOMPLISHED TEST 4 REF MM 71-00-00. ALL INDICATIONS NORMAL.Sep 19, 2021 · N675UA · Boeing 767322SDR DALA2021090105158Probe · failedSHIP 1521 EXCESSIVE WHITE PUFFS MIST/SMOKE FROM CAPTAINS SIDE PITOT TUBES OR TAT ON TAXI INTERMITTENT. CORRECTIVE ACTION: SUSPECT TAT PROBE FAILING INTERNALLY. REPLACED TAT PROBE. SYSTEM OPERATION IS NORMAL. (LP 8011264)Aug 28, 2021 · N394DL · Boeing 767324SDR 2HGR2021061201Warning Message · false indicationON POST TAXI AT KLAX, CREW NOTICED DADC DATA INVALID FAULT MESSAGE, CREW NOTICED THE SAT & TAT WERE 98 DEGREES CELSIUS. AFTER 30 MIN SAT & TAT TEMPERATURES CAME BACK TO NORMAL. CREW INADVERTENTLY LEFT ADS HEATER PANEL SWITCH ARMED AFTER LANDING FOR AN EXTENDEDJun 10, 2021 · N825SG · Cndair CL6002B16SDR FDEA202105191311Probe · failedPDIS 990 30-30 7688 19MAY21 MEM FACT U LOGPAGES:2903863 TAT PROBE AND ASSOCIATED EICAS MSG ON CLIMB OUT, EMERGENCY DECLARED APON LANDING SHGN 19MAY21 19:10 MEM U REFERENCE WDM 34-12-11, 34-12-12 & 30-33-11. DURING DISASSEMBLY OF CONNECTORMay 19, 2021 · N990FD · Boeing 757232SDR HNAA2021050300164Tat Probe · malfunctionedIN CRUISE TAT 2 INOPERATIVE IN EICAS. NO NOTED INDICATION ISSUES. R & R TAT 2 SENSOR IAW AMM 34 15 03. OPS CHECKED GOOD. R & R RELAY K0494 PER AMM 20 13 02. OPS CHECK GOOD. OK FOR SERVICEApr 30, 2021 · N600BP · Emb EMB145LRSDR AALA202104099014Sensor · inoperativeAIRCRAFT WAS GROUNDED: ON DECENT THRUST SHOULD HAVE BEEN IDLE, BUT FULLY AUTHORITY DIGITAL ELECTRONIC CONTROLLER SEEMS TO BOUNCE THRUST UP AND DOWN SPURIOUSLY. ACCOMPLISHED AMM TASK 34-11-18-200-002-A, VISUALLY INSPECTED TOTAL AIR TEMPERATURE SENSORS PER EA NUApr 8, 2021 · N150UW · Airbus A321211SDR AALA202104099005Sensor · inoperativeAIRCRAFT WAS GROUNDED: ON DECENT THRUST SHOULD HAVE BEEN IDLE, BUT FULLY AUTHORITY DIGITAL ELECTRONIC CONTROLLER SEEMS TO BOUNCE THRUST UP AND DOWN SPURIOUSLY. ACCOMPLISHED AMM TASK 34-11-18-200-002-A, VISUALLY INSPECTED TOTAL AIR TEMPERATURE SENSORS PER EA NUApr 8, 2021 · N150UW · Airbus A321211SDR CALA2021040500420Tat Probe · faultedTAT PROBE MESSAGE ON LIFTOFF FOUND CB P63 GRID L 18 "L TAT" PROBE HEAT OPEN. CLOSED CB AND PERFORMED OPS CK REF AMM 34-12-02-404-008. CB REMAINED CLOSED THROUGH OUT TEST. AS PRECAUTION REPLACED K411 LEFT TAT PROBE CURRENT SENSING RELAY IN P33 PANEL. ALSO PERFOApr 5, 2021 · N673UA · Boeing 767322SDR QXEA2021022500079Wire Splice · damagedSTBY PITOT HEAT CAUTION LIGHT ILLUMINATED DURING CRUISE. WHILE COMPLETING THE CHECKLIST IT EXTINGUISHED AGAIN. REMOVED FROM SERVICE. INSPECTED JUMPER WIRE 3410-4252E-16-2 AT IRPS TIMER MONITOR AND FOUND SPLICE 3410-E1 VERY DARK AND SHOWING SIGNS OF HEAT DAMAGFeb 24, 2021 · N452QX · Bombdr DHC8402SDR CALA2021010600014Sensor · malfunctionedLOSS OF ADR 1 AND 3 / .ADR 1 REPLACED TAT SENSOR 11FP1, REF TASK 34-11-18-000-001-A. OPERATIONS CHECK PASS. S/N OFF 0892. S/N ON 8166. TRACKING NR 1182604. ROTABLE PARTS CHANGE WAS INDICATED-TT NR 1182604 SN OFF 0892 IPC REFERENCE 32-11-18-000-001-A SENSJan 6, 2021 · N405UA · Airbus A320232SDR AALA202008259007Tat Probe · inoperativeAIRCRAFT WAS GROUNDED: ALTITUDE AND AIRSPEED DISAGREE MESSAGES AT FL380, BOTH SELF-CORRECTED ON DESCENT. REPLACED TOTAL AIR TEMPERATURE PROBE WITH NEW IAW AMM 34-21-06, OPS CHECK GOOD.Aug 24, 2020 · N806NN · Boeing 737823SDR YENA2020062800381Sensor · failedFLT 647, RETURNED TO FIELD. ON CLIMB OUT, AP 1 ENGAGED FL 280, ACFT PITCHED DOWN, SAT & TAT SHOWED EXTREME NEG NUMBERS. DISENGAGED AP, LEVELED AT FL 320. SAT & TAT AMBER XX. DURING DESCENT, FO WOULDN`T FOLLOW PROFILE AGAIN, EXTREME NEG SAT NOTED. CHECKED TATJun 25, 2020 · N589JB · Airbus A320232SDR CALA2020032700735Probe · defectiveLOST ALL TEMP AND PERFORMANCE DATA ON CLIMBOUT R&R TAT PROBE REF AMM 34-21-06.OPS CHECK NORMAL.PERFORMED LAND V ERY TEST.TEST PASSED.AIRCRAFT IS FULL AUTOLAND CAT CAPABILITY IMar 27, 2020 · N39450 · Boeing 737924ERSDR ASAA2020012832026Probe · faultedABOUT 45 MIN INTO FLIGHT, A/T LIM ANNUNCIATED AND VNAV DISCONNECTED. REF PREVIOUS WRITE-UPS ON LOG PAGE 12089346 AND 12089355. WE ALSO LOST ETA AND FUEL ESTIMATES ON ALL FMC PAGES. AT 15,000 FEET ON DESCENT, ALL NAV FUNCTIONS AND FMC INDICATIONS RETURNED TO NOJan 28, 2020 · N530AS · Boeing 737890SDR HNAA2020012700029Probe · failedON T/O TAT1 INOP W/ NO CONFIG MSG. C/W FIM 30-33-00-810-801A. MSG CLEARED AND D/N RETURN. TAT 1 INOP ON T/O ASSOCIATED W/ NO CONFIG WARNING. PERFORMED FIM TASK 30-33-00-810-801A. R&R RELAYS K0495,K0534,K0325,K0059. R&R TAT CURRENT SENSOR IAW 30-33-01 NO FIX.Jan 26, 2020 · N620AE · Emb EMB145LRSDR DALA2020011500316Probe · failedSHIP 3861 -DIV- TO MCO DUE BOTH AUTOPILOTS DISCONNECTED, NO AUTO THROTTLE AND TAT PROBE MESSAGE. CORRECTIVE ACTION: PERFORMED ADIRS BITE CHECK. BOTH ADIRU FAILED TAT PROBE. REPLACED TAT PROBE PER AMM. OPS CHECKS GOOD.Jan 12, 2020 · N861DN · Boeing 737932ER
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