# SDR ASAA2019110831271

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2019
- Submitted: November 9, 2019
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 36,438 hours, 10,690 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Sensor
- Part number: 8TC19AAN1
- Part serial: GDBE860C
- Condition: Out Of Tolerance
- Location: Nr 2 Cdt
- Part time: 919 hours, 244 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019110831271

## Discrepancy

WHILE PERFORMING T/C 78273000, FOUND MSG 75-20832 "T3 SIGNAL OUT OF RANGE". LONG TIME FAULT #2 ENGINE. GROUNDED - YES. DEFERRED PER T/C 78273000 FOR REPAIR WITHIN 450 FLT HOURS. REMOVED AND REPLACED THE #2 ENG T3 (CDT) SENSOR ASSY REF B737-800 AMM 73-21-07/401. OPERATIONAL TEST PASS AND B737-800 FIM 75-33 TASK 802 FAULT REPAIR CONFIRMATION SUCCESSFUL. THIS CLEARS PLT DIFFERAL.

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