# SDR ASAA2018032324036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2018
- Submitted: April 6, 2018
- Operation: Air carrier
- Aircraft: [N413AS](https://openairdocs.org/aircraft/N413AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35205
- Aircraft time: 20,103 hours, 6,560 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7700 · Engine Indicating System](https://openairdocs.org/jasc/7700)
- Part: Sensor
- Part number: RP23600
- Condition: Faulted
- Location: Nr 2 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/ASAA2018032324036

## Discrepancy

THE T25 SIGNAL IS OUT OF RANGE,  LONG TIME FAULT FOUND DURING EEC BITE TEST.   ACFT GROUNDED.  PERFORMED FIM 75-33 TASK 801. NO FAULTS. NR 2 ENG BITE TEST,  RECENT FAULTS HAS CODE 75-10802 (CH A), 75-20802 (CH B), AND 75-10822.  EEC, J9 AND J10 HARNESS PREVIOUSLY REPLACED.  POSSIBLE CAUSE IAW FIM 75-33 TASK 801 IS THE PT25 SENSOR.  R & R THE PT25 SENSOR FOR THE NR 2  ENGINE  IAW AMM 73-21-02. OPS TESTED GOOD.

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