# SDR ASAA2018021223529

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2018
- Submitted: February 14, 2018
- Operation: Air carrier
- Aircraft: [N407AS](https://openairdocs.org/aircraft/N407AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41731
- Aircraft time: 20,864 hours, 6,770 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Eec
- Part number: 2042M67P04
- Part serial: FFFB2911
- Condition: Faulted
- Location: Nr 1
- Part time: 20,884 hours, 6,776 cycles
- 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/ASAA2018021223529

## Discrepancy

ON COMPLETING T/C 78273000, FOUND THE NR 1 ENGINE FAULT MESSAGE  73-30791, SHORT TIME FAULT, PS3 SIGNALS DISAGREE. ACFT GROUNDED.  REMOVED AND REPLACED THE EEC IAW AMM 73-21-60, GROUND VERIFICATION TEST PASSED.

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