# SDR ASAA2021091035934

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 2021
- Submitted: September 14, 2021
- Operation: Air carrier
- Aircraft: [N565AS](https://openairdocs.org/aircraft/N565AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 54,740 hours, 16,297 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Eec
- Part number: 1853M33P06
- Part serial: LMDN6758
- Condition: Faulty
- Location: Nr 2 Engine
- Part time: 280 hours, 76 cycles
- 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/ASAA2021091035934

## Discrepancy

WHILE ACCOMPLISHING T/C 78273000 #2 ENGINE SHOWS SHORT TIME FAULT MSG 73-21282 EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE FLIGHT LEG 1 AND 3. GROUNDED - YES. PERFORMED B737-800 FIM 73-27 TASK 805 FOUND FAULT 73-21282 REMAINS ACTIVE ALSO FAULTING IN HISTORY LEGS 1,3,5. REPLACED EEC REF B737-800 AMM 73-21-40/401 ALL TEST PASS NO FAULTS. ENGINE RUN SHOWS NO FAULTS ALSO.

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