# SDR ASAA2017012819914

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2017
- Submitted: February 24, 2017
- Operation: Air carrier
- Aircraft: [N569AS](https://openairdocs.org/aircraft/N569AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35184
- Aircraft time: 37,799 hours, 11,629 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7397 · Engine Fuel System Wiring](https://openairdocs.org/jasc/7397)
- Part: Wire Harness
- Part number: 3250349020
- Condition: Faulted
- Location: Nr 1 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/ASAA2017012819914

## Discrepancy

NR 1 ENGINE SHOWS MESSAGES 75-10601 (TBV POSITION SIGNALS DISAGREE) SHORT TIME FAULT, 75-10591 (TBV POSITION SIGNALS DISAGREE) LONG TIME FAULT, AND 75-20601 (TBV POSITION SIGNALS DISAGREE), SHORT TIME FAULT.  ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE J5 AND J9 HARNESSES IAW AMM 73-21-06. EEC TEST FOR NR 1 ENGINE TESTS GOOD IAW AMM 73-21-00-700-804-F00. TEST R-ACTUATORS TEST FOR NR 1 ENGINE TESTS GOOD IAW AMM 71-00-00-700-807-F00.  NR 1 ENGINE FADER SYSTEM TEST CHECKS GOOD IAW AMM 73-21-00-700-802-F00.  NR 1 ENGINE IDENT/6NFIG OPS CHECKS GOOD IAW AMM 73-21-00-700-808-F00.  NR 1 ENGINE EEL DISCRETE TEST CHECKED GOOD IAW AMM 73-21-00-700-809-F00.  FOLLOWING NR 1 ENGINE RUN, FLIGHT LEG O+1 SHOWS NO CURRENT FAULTS. ALL TESTS PASSED.

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