# SDR ASAA2019043099195

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2019
- Submitted: April 30, 2019
- Operation: Air carrier
- Aircraft: [N583AS](https://openairdocs.org/aircraft/N583AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35681
- Aircraft time: 44,765 hours, 13,169 cycles
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Unknown
- Condition: Unknown
- Location: Electrical Power
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019043099195

## Discrepancy

ENGINE CONTROL LIGHT ON #1 ENGINE AFTER START. EXTERNAL POWER FAILED ON PUSH.  RELIED ON BATTERY POWER FOR APPROX. 15 MINUTES PRIOR TO STARTING ENGINE #1 AND ESTABLISHING AC ELECTRICAL POWER. GROUNDED - YES. THE AIRPLANE VOLTAGE INPUT TO EEC IS OUT OF RANGE. ACCOMPLISHED #1 ENG EEC TEST, NO EEC FAULTS, REF B737-800 AMM TASK 73-21-00-700-804-F00. ENG RUN AT GATE, NO FAULTS. GROUND VERIFICATION GOOD. #1 ENG. EEC BITE, NO FAULTS, REF AMM TASK 73-00-00-810-801-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.