# SDR ASAA2018121127304

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 6, 2018
- Submitted: December 11, 2018
- Operation: Air carrier
- Aircraft: [N428AS](https://openairdocs.org/aircraft/N428AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36353
- Aircraft time: 11,079 hours, 3,666 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7700 · Engine Indicating System](https://openairdocs.org/jasc/7700)
- Part: Fault Message
- Condition: Activated
- Location: Nr 1 Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018121127304

## Discrepancy

WHILE ACCOMPLISHING T/C 78273000 FOUND #1 ENGINE FAULT, MSG # 77-10851. BOTTOM RIGHT EGT SIGNAL (T49.5) IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.

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