# SDR ASAA2023072644255

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2023
- Submitted: July 31, 2023
- Operation: Air carrier
- Aircraft: [N529AS](https://openairdocs.org/aircraft/N529AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35198
- Aircraft time: 46,884 hours, 13,863 cycles
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Sensor
- Part number: 3404022010
- Part serial: EM4041138
- Condition: Faulty
- Location: #2 Engine
- Part time: 46,911 hours, 13,879 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023072644255

## Discrepancy

PERFORMING T/C 78273000, FOUND #2 ENG LONG TIME FAULT 73-10812, T12 SIGNAL IS OUT OF RANGE. GROUNDED - YES. FOUND FAULT ON EVERY FLIGHT LEG. REPLACED T12 SENSOR REF B737-800 AMM 73-21-05/401. EEC TEST PASSED WITH NO FAULTS FOUND. ETOPS GROUND VERIFICATION SUCCESSFUL.

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