# SDR ASAA1058242

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2010
- Submitted: September 2, 2010
- Operation: Air carrier
- Aircraft: [N564AS](https://openairdocs.org/aircraft/N564AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35103
- Aircraft time: 14,788 hours, 4,680 cycles
- System (JASC): [8010 · Engine Cranking](https://openairdocs.org/jasc/8010)
- Part: Switch
- Part number: 66002849
- Condition: Faulty
- Location: Cockpit
- 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/ASAA1058242

## Discrepancy

NR 2 ENGINE LOGGED FAULT NR 73 30312 THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE FOUND WHILE ACCOMPLISHING T/C 78273000 INTERROGATE THE FMC CDU FOR ENGINE FAULTS.  REMOVED AND REPLACED NR 2 ENGINE START SWITCH.  CONFIRMED CORRECTED REF FIM TASK 73 24 00 810 813 F00 REF WDM 74 31 11.

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