# SDR ASAA2016100818250

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2016
- Submitted: October 11, 2016
- Operation: Air carrier
- Aircraft: [N514AS](https://openairdocs.org/aircraft/N514AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35193
- Aircraft time: 30,790 hours, 9,300 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: Probe
- Part number: TC29603
- Condition: Coked
- Location: Nr 2 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/ASAA2016100818250

## Discrepancy

NR 2 ENGINE SHOWS SHIFT IN ENGINE TREND MONITORING.  ACFT GROUNDED.   ACCOMPLISHED TC 78273000, NO FAULTS. CHECKED & RECORDED T49.5 SENSOR VALUES PRE & POST CLEANING, REF LOGPAGE 11585629. CLEANED EGT HARNESS CONNECTORS. OPS GOOD, GROUND VERIFICATION SUCCESSFUL, REF B737-800 AMM 77-21-00. S4 T49.5 PROBE CONNECTOR COKED. REMOVED & REPLACED S4 T49.5 PROBE, IAW  AMM 77-21-01. OPS GOOD, GROUND VERIFICATION SUCCESSFUL.

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