# SDR ASAA2021011733909

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2021
- Submitted: February 9, 2021
- Operation: Air carrier
- Aircraft: [N408AS](https://openairdocs.org/aircraft/N408AS), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 41732
- Aircraft time: 29,914 hours, 9,576 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7797 · Engine Indicating System Wiring](https://openairdocs.org/jasc/7797)
- Part: Wire Harness
- Part number: 3250254020
- Condition: Faulty
- Location: Nr 2 Engine
- 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/ASAA2021011733909

## Discrepancy

WHILE PEFORMING T/C 78273000, FOUND MAINT MSG 77-20862, "THE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE" ON #2 ENG ESN 963476. GROUNDED - YES. REF B737-900 FIM 77-21 TASK 803 FOLLOWING PREVIOUS CLEANING PERFORMED EARLIER, & FAULT HISTORY HIT ON EVERY LEG. REMOVED AND REPLACED ENG 2 CJ10 HARNESS REF B737-900 AMM TASK 73-21-06-400-803-F00. PERFORMED FADEC SYSTEM TEST, AMM TASK 73-21-00-700-802-F00. - ALL TESTS PASS.

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