# SDR ASAA2022040838047

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2022
- Submitted: April 18, 2022
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737
- Aircraft serial: 35685
- Aircraft time: 51,002 hours, 15,115 cycles
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: None
- Part number: TC29603
- Condition: Degraded
- Location: #1 Engine
- Stage of operation: TO
- How discovered: V
- Nature of condition: M
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022040838047

## Discrepancy

ON T/O IN SAN WITH 27K BUMP T/O, EGT ENG #1 EXCEEDED MAX LIMIT FOR 4-5 SECONDS WITH PROPER T/O SETTING. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE T49.5 S4 PROBE PER B737-800 AMM 77-21-01. PERFORMED EEC TEST PER AMM 73-21-00-700-804-F00,(AS REQUESTED PER POWER PLANT TEST REFERENCE TABLE), TEST PASSED. PERFORMED THE INPUT MONITORING OF THE T49.5 SYSTEM (WITHOUT ENGINE OPERATION) PER B737-800 FIM 77-21 TASK 804, THE T49.5 PARAMETERS ARE WITHIN LIMITS. NO OTHER FAULTS DETECTED.

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