# SDR ASAA2021080295579

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 29, 2021
- Submitted: August 3, 2021
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 52,462 hours, 15,483 cycles
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: Probe
- Part number: TC29603
- Condition: Faulty
- Location: Nr 1 Engine
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021080295579

## Discrepancy

#1 ENGINE OVERHEAT 970F AT VR NO SURGE OR ABNORMAL ENG #S. GROUNDED - YES. DIVERSION TIME 18 MINUTES - C/W B737-800 FIM TASK 71-06 TASK 805 ITEM 2 REMOVED AND REPLACED T49.5 PROBE REF B737-800 AMM 77-21-01 C/W EEC TEST REF AMM 73-21-00. NO FAULTS FOUND, OPS CHECK NORMAL ITEM 3 PERFORMED INSPECTION AS REQUIRED REF AMM 71-00-00-800-804. NO DEFECTS NOTED ON THE INLET OR EXHAUST, FOUND EXCEEDANCE CAUSED BY EGT INDICATING SYST FAULT NOTED ON ITEM 2ITEM 4 C/W AMM 77-21-00-140-801 CLEANED EGT PROBES AND CONNECTORS T49.5 S3-S4.

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