# SDR ASAA2018102026584

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2018
- Submitted: October 24, 2018
- Operation: Air carrier
- Aircraft: [N581AS](https://openairdocs.org/aircraft/N581AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35188
- Aircraft time: 43,825 hours, 13,159 cycles
- System (JASC): [7397 · Engine Fuel System Wiring](https://openairdocs.org/jasc/7397)
- Part: Connector
- Condition: Dirty
- Location: Nr 1 Engine
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018102026584

## Discrepancy

NR 1 ENGINE FMC/CDU SHOWS FAULT 75-10831, T3 SIGNAL IS OUT OF RANGE-LONG TIME FAULT. GROUNDED - YES.  PER B737-800 FIM 75-33 TASK 802 INITIAL EVALUATION SHOWS FAULT 75-10831 T3 SIGNAL IS OUT OF RANGE. LONG TIME FAULT PRE CLEANING READINGS, T3 CH B: 109.62. T3 CH A: 479.75. CLEANED CH A + B ELECTRICAL CONNECTORS AT T3 PER B737-800 AMM 70-70-01.POST CLEANING READINGS, T3 CH B: 50.37. T3 CH A: 50.75. EEC TEST PASSED NO FAULTS. REPAIR CONFIRMATION SUCCESSFUL.

---
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.