# SDR ASAA2019062929880

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2019
- Submitted: July 3, 2019
- Operation: Air carrier
- Aircraft: [N409AS](https://openairdocs.org/aircraft/N409AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41733
- Aircraft time: 25,677 hours, 8,383 cycles
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Warning System
- Condition: False Activation
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019062929880

## Discrepancy

#1 ENG EEC BITE TEST SHOWS FAULT MAINT MSG 73-21271 "THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE" SHORT TIME FAULT, DEFERRED PER TC 78273000. GROUNDED - YES. REF FIM 73-27 TASK 804. ACCOMPLISHED #1 EEC BITE, NO CURRENT FAULTS. FAULT MESSAGE 73-21271 SHOWS IN LEG 6. ACCOMPLISHED #1 ENGINE IDLE RUN. ACCOMPLISHED #1 EEC BITE, NO CURRENT FAULTS. THIS CLEARS PLT. GROUND VERIFICATION, VERIFIED.

---
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.