# SDR ASAA2019071930131

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2019
- Submitted: August 28, 2019
- Operation: Air carrier
- Aircraft: [N471AS](https://openairdocs.org/aircraft/N471AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41703
- Aircraft time: 19,264 hours, 6,247 cycles
- System (JASC): [7722 · Engine EGT/TIT Indicating System](https://openairdocs.org/jasc/7722)
- Part: Probe
- Condition: Dirty
- Location: Nr 1 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/ASAA2019071930131

## Discrepancy

PER TASK CARD N8005003 - #1 ENGINE TOP RIGHT EGT SIGNAL IS OUT OF RANGE - FAULT CODE 77-101841. GROUNDED - YES. REF CORRECTIVE ACTION ON TSR703709 AFTER CLEANING EGT PROBES & EGT SYSTEM RESISTANCE CHECKS, POST ENGINE RUN SHOWS MSG MOVED OFF FLT LEG 0. REPAIR & GROUND VERIFICATION PASSED, THIS CLEARS PLT.

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