# SDR ASAA2016091818070

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2016
- Submitted: September 20, 2016
- Operation: Air carrier
- Aircraft: [N594AS](https://openairdocs.org/aircraft/N594AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35191
- Aircraft time: 32,667 hours, 9,895 cycles
- Engine: Cfmint CFM567B27B3
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Sensor
- Part number: 3404023010
- Condition: Faulty
- 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/ASAA2016091818070

## Discrepancy

WHILE ACCOMPLISHING TC 78273000, FOUND 2 CURRENT FAULTS: 75-10821 T25 SIG OUT OF RANGE AND 75-30801 T25 SIG DISAGREE ON ENG NR 1.  ACFT GROUNDED.  REPLACED PT 25 SENSOR REF AMM 73-21-02-400-801-F00 ON ENG NR 1.  ACCOMPLISHED PT25 INSTALLATION TEST, OPS NORMAL REF AMM 71-00-00-800-811-F00.  ELECTRONIC ENGINE CONTROL BITE TEST.  OPS NORMAL, NO FAULTS REF AMM 73-21-00-700-804-F00.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.