# SDR CALA2018041101148

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2018
- Submitted: April 11, 2018
- Operation: Air carrier
- Aircraft: [N37253](https://openairdocs.org/aircraft/N37253), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30584
- Aircraft time: 57,173 hours, 20,352 cycles
- System (JASC): [7700 · Engine Indicating System](https://openairdocs.org/jasc/7700)
- Part: Probe
- Part number: 1257503
- Part serial: 1087
- Condition: Defective
- Location: Nr 2 Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2018041101148

## Discrepancy

NR 2 ENGINE TEMP SPIKES INTO CAUTION ON & OFF INTERMITANTLY SPIKES,  REMOVED AND REPLACED T49.5 S3 AND S4 PROBES IAW AMM 77-21-01.

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