# SDR ASAA2016112019303

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 2016
- Submitted: January 12, 2017
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 32,941 hours, 10,115 cycles
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: Probe
- Part number: TC29603
- Condition: Failed
- Location: Nr 1 Engine
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016112019303

## Discrepancy

WHILE ACCOMPLISHING TASK CARD 78273000 FOUND ECONOMIC FAULT 73-31371, UPPER EGT SECTORS READING HIGH ON NR 1 ENGINE.  ACFT GROUNDED. REMOVED AND REPLACED T49.5 PROBE S1 IAW AMM 77-21-01-000-801 F00 AND 77-21-01-400-801-F00. ACCOMPLISHED EEC TEST IAW AMM 73-21-00-700-804-F00. TEST PASSED WITH NO FAULTS. INPUT MONITORING READINGS FOR S1 AND S4 AFTER IDLE RUN WITHIN 25 DEGREES.

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