# Service difficulty reports: JASC 3412

A list on [JASC 3412](https://openairdocs.org/jasc/3412.md).

Reports filed under 3412 · Outside Air Temperature Indicator/Sensor, newest first.

Page 1 of 6 · 254 reports

- [SDR CALA2026091519424](https://openairdocs.org/sdr/CALA2026091519424.md): Tat Probe · faulted · Sep 13, 2026 · N671UA · Boeing 767322
  > LOSS 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. OTH
- [SDR CALA2026082418859](https://openairdocs.org/sdr/CALA2026082418859.md): Adiru · faulted · Aug 21, 2026 · N496UA · Airbus A320232
  > REPEAT 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.
- [SDR SWIA2026051276027](https://openairdocs.org/sdr/SWIA2026051276027.md): Tat Probe · deformed · May 12, 2026 · N85374 · Emb ERJ170200LL
  > SKIN 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. PER
- [SDR CALA2026041315316](https://openairdocs.org/sdr/CALA2026041315316.md): Tat Probe · faulty · Apr 11, 2026 · N47330 · Boeing 7378
  > PROBE 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.
- [SDR CALA2026031614595](https://openairdocs.org/sdr/CALA2026031614595.md): Tat Probe · faulted · Mar 12, 2026 · N37507 · Boeing 7379
  > AFTER 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 TH
- [SDR AALA202602039460](https://openairdocs.org/sdr/AALA202602039460.md): Tat Probe · overheated · Jan 31, 2026 · N323RM · Boeing 7378
  > AIRCRAFT 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.
- [SDR SWAA2025101323837](https://openairdocs.org/sdr/SWAA2025101323837.md): Tat Probe · out of tolerance · Oct 11, 2025 · N7715E · Boeing 7377BD
  > IAS DISAGREE ON TAKEOFF. R+R TOTAL AIR TEMPERATURE PROBE PER MM 34-21-06.
- [SDR ABXA20251007258](https://openairdocs.org/sdr/ABXA20251007258.md): Probe · defective · Oct 7, 2025 · N390CM · Boeing 767381
  > 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 2025F00220](https://openairdocs.org/sdr/2025F00220.md): Gyro · faulted · Sep 11, 2025 · N728AV · Airbus A320214
  > NAV ADR 1 FAULT ON ECAM DURING TAKE OFF (REJECTED TAKE OFF) AT SPEED OF 90 KTS
- [SDR AALA202509082697](https://openairdocs.org/sdr/AALA202509082697.md): Tat Probe · faulted · Sep 7, 2025 · N891NN · Boeing 737823
  > AIRCRAFT 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. MA
- [SDR HNAA2025081100537](https://openairdocs.org/sdr/HNAA2025081100537.md): Relay · failed · Aug 10, 2025 · N641AE · Emb EMB145LR
  > ON 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 PH
- [SDR ASMF2025072300517](https://openairdocs.org/sdr/ASMF2025072300517.md): Probe · faulted · Jul 23, 2025 · Boeing 7378
  > REJECTED TAKE OFF DUE TO AIRSPEED UNRELIABILITY / MASTER CAUTION"EEC ENGINE 1" / TAT PROBE REPLACED
- [SDR CALA2025032103068](https://openairdocs.org/sdr/CALA2025032103068.md): Probe · faulted · Mar 19, 2025 · N17321 · Boeing 7378
  > LEFT TEMP PROBE LIGHT ILLUMINATED. MEL 3031D TAT PROBE HEATER INOP.. R&R TEMP PROBE PER AMM TASK 34-21-06 AND ALL OPS CHECKED GOOD
- [SDR CALA2025030702645](https://openairdocs.org/sdr/CALA2025030702645.md): Tat Probe · faulted · Mar 5, 2025 · N648UA · Boeing 767322
  > TAT 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/GN
- [SDR HNAA2025021900088](https://openairdocs.org/sdr/HNAA2025021900088.md): Sensor · faulted · Feb 17, 2025 · N905JH · Emb EMB145LR
  > TAT 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.
- [SDR CALA2025012902102](https://openairdocs.org/sdr/CALA2025012902102.md): Tat Probe · faulty · Jan 27, 2025 · N78060 · Boeing 767424ER
  > RIGHT 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. RE
- [SDR CALA2025012900223](https://openairdocs.org/sdr/CALA2025012900223.md): Tat Probe · malfunctioned · Jan 27, 2025 · N78060 · Boeing 767424ER
  > R 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. REPLA
- [SDR DALA2025012100502](https://openairdocs.org/sdr/DALA2025012100502.md): Relay · faulted · Jan 17, 2025 · N556NW · Boeing 757251
  > SHIP 5656 -DIV/DE- TO ATL DUE TO TAT PROBE MESSAGE. CORRECTIVE ACTION: REPLACED TAT PROBE CURRENT SENSE RELAY K410.
- [SDR ABXA20241011186](https://openairdocs.org/sdr/ABXA20241011186.md): Tat Probe · failed · Oct 11, 2024 · N1229A · Boeing 767306
  > CREW 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.
- [SDR CALA2024100400751](https://openairdocs.org/sdr/CALA2024100400751.md): Probe · faulted · Oct 2, 2024 · N27273 · Boeing 7378
  > TAT 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 GOOD
- [SDR CALA2024070501965](https://openairdocs.org/sdr/CALA2024070501965.md): Hose · leaking · Jun 30, 2024 · N48127 · Boeing 757224
  > FO 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
- [SDR AALA202405298176](https://openairdocs.org/sdr/AALA202405298176.md): Tat Probe · failed · May 28, 2024 · N826NN · Boeing 737823
  > AIRCRAFT 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. OPERTIONAL
- [SDR DALA2024031103195](https://openairdocs.org/sdr/DALA2024031103195.md): Tat Probe · damaged · Mar 8, 2024 · N327NB · Airbus A319114
  > SHIP 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)
- [SDR IPXA2023121901449](https://openairdocs.org/sdr/IPXA2023121901449.md): Unknown · unknown · Dec 19, 2023 · N427UP · Boeing 75724APF
  > *** 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-
- [SDR AALA202306163183](https://openairdocs.org/sdr/AALA202306163183.md): Tat Probe · faulty · Jun 13, 2023 · N916AN · Boeing 737823
  > AIRCRAFT 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 FOUN
- [SDR IPXA2023011990061](https://openairdocs.org/sdr/IPXA2023011990061.md): Sensor · faulted · Jan 19, 2023 · N474UP · Boeing 75724APF
  > ATB, EMERGENCY DECLARED, TAT PROB EICAS AT 400 FT AGL. REMOVED AND REPLACED TAT PROBE, OPS CHECK GOOD IAW AMM 34-12-02.
- [SDR 2023F00000](https://openairdocs.org/sdr/2023F00000.md): Probe · faulted · Dec 9, 2022 · Boeing 7377Q8
  > A/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.
- [SDR AALA202207190706](https://openairdocs.org/sdr/AALA202207190706.md): Tat Probe · defective · Jul 15, 2022 · N822AW · Airbus A319132
  > AIRCRAFT 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 W
- [SDR AALA202207197413](https://openairdocs.org/sdr/AALA202207197413.md): Tat Probe · defective · Jul 15, 2022 · N822AW · Airbus A319132
  > AIRCRAFT 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 W
- [SDR IPXA2022061783207](https://openairdocs.org/sdr/IPXA2022061783207.md): Avionics Unit · inoperative · Jun 17, 2022 · N470UP · Boeing 75724APF
  > INSPECTION 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 3
- [SDR QXEA2022041800158](https://openairdocs.org/sdr/QXEA2022041800158.md): Eicas · fault message · Apr 17, 2022 · N403QX · Bombdr DHC8402
  > STANDBY 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 AND
- [SDR CALA2022041400983](https://openairdocs.org/sdr/CALA2022041400983.md): Sensor · failed · Apr 14, 2022 · N852UA · Airbus A319131
  > ADR 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 0669
- [SDR UIEA2022032600242](https://openairdocs.org/sdr/UIEA2022032600242.md): Aoa · failed · Mar 26, 2022 · N492MC · Boeing 74747UF
  > CREW 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 34-12
- [SDR AALA202112103496](https://openairdocs.org/sdr/AALA202112103496.md): Tat Probe · faulty · Dec 2, 2021 · N957AN · Boeing 737*
  > AIRCRAFT 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)
- [SDR CALA2021092001607](https://openairdocs.org/sdr/CALA2021092001607.md): Tat Probe · faulted · Sep 19, 2021 · N675UA · Boeing 767322
  > TAT 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.
- [SDR DALA2021090105158](https://openairdocs.org/sdr/DALA2021090105158.md): Probe · failed · Aug 28, 2021 · N394DL · Boeing 767324
  > SHIP 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)
- [SDR 2HGR2021061201](https://openairdocs.org/sdr/2HGR2021061201.md): Warning Message · false indication · Jun 10, 2021 · N825SG · Cndair CL6002B16
  > ON 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 EXTENDED
- [SDR FDEA202105191311](https://openairdocs.org/sdr/FDEA202105191311.md): Probe · failed · May 19, 2021 · N990FD · Boeing 757232
  > PDIS 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 CONNECTOR
- [SDR HNAA2021050300164](https://openairdocs.org/sdr/HNAA2021050300164.md): Tat Probe · malfunctioned · Apr 30, 2021 · N600BP · Emb EMB145LR
  > IN 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 SERVICE
- [SDR AALA202104099014](https://openairdocs.org/sdr/AALA202104099014.md): Sensor · inoperative · Apr 8, 2021 · N150UW · Airbus A321211
  > AIRCRAFT 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 NU
- [SDR AALA202104099005](https://openairdocs.org/sdr/AALA202104099005.md): Sensor · inoperative · Apr 8, 2021 · N150UW · Airbus A321211
  > AIRCRAFT 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 NU
- [SDR CALA2021040500420](https://openairdocs.org/sdr/CALA2021040500420.md): Tat Probe · faulted · Apr 5, 2021 · N673UA · Boeing 767322
  > TAT 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 PERFO
- [SDR QXEA2021022500079](https://openairdocs.org/sdr/QXEA2021022500079.md): Wire Splice · damaged · Feb 24, 2021 · N452QX · Bombdr DHC8402
  > STBY 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 DAMAG
- [SDR CALA2021010600014](https://openairdocs.org/sdr/CALA2021010600014.md): Sensor · malfunctioned · Jan 6, 2021 · N405UA · Airbus A320232
  > LOSS 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 SENS
- [SDR AALA202008259007](https://openairdocs.org/sdr/AALA202008259007.md): Tat Probe · inoperative · Aug 24, 2020 · N806NN · Boeing 737823
  > AIRCRAFT 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.
- [SDR YENA2020062800381](https://openairdocs.org/sdr/YENA2020062800381.md): Sensor · failed · Jun 25, 2020 · N589JB · Airbus A320232
  > FLT 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 TAT
- [SDR CALA2020032700735](https://openairdocs.org/sdr/CALA2020032700735.md): Probe · defective · Mar 27, 2020 · N39450 · Boeing 737924ER
  > LOST 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 I
- [SDR ASAA2020012832026](https://openairdocs.org/sdr/ASAA2020012832026.md): Probe · faulted · Jan 28, 2020 · N530AS · Boeing 737890
  > ABOUT 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 NO
- [SDR HNAA2020012700029](https://openairdocs.org/sdr/HNAA2020012700029.md): Probe · failed · Jan 26, 2020 · N620AE · Emb EMB145LR
  > ON 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.
- [SDR DALA2020011500316](https://openairdocs.org/sdr/DALA2020011500316.md): Probe · failed · Jan 12, 2020 · N861DN · Boeing 737932ER
  > SHIP 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.

Next page: https://openairdocs.org/jasc/3412/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 jasc_code = '3412'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/jasc/3412/reports

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