# SDR ASAA2022102540522

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2022
- Submitted: October 31, 2022
- Operation: Air carrier
- Aircraft: [N585AS](https://openairdocs.org/aircraft/N585AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35683
- Aircraft time: 55,224 hours, 16,493 cycles
- System (JASC): [2613 · Overheat Detection](https://openairdocs.org/jasc/2613)
- Part: Overheat Loop
- Condition: Faulted
- Location: Nr 2 Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022102540522

## Discrepancy

ENGINE #2 'B' LOOP ENGINE OVERHEAT INDICATES A FAULT LIGHT AND UNSATISFACTORY TEST WHEN OVERHEAT SWITCH IN THE NORMAL POSITION. ENGINE FIRE TEST SATISFACTORY WHEN OVERHEAT SWITCH IS PLACED IN THE A LOOP POSITION. GROUNDED - YES. PERFORMED ENGINE/APU FIRE DETECTION CONTROL MODULE BITE. OPS CHECK GOOD. NO FAULTS AT THIS TIME. REF B737-800 FIM 26-10 TASK 801. NO HISTORY 90 DAYS.

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