# SDR ASAA2017020219674

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 2, 2017
- Submitted: February 6, 2017
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 32,561 hours, 9,814 cycles
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Cap
- Condition: Detached
- Location: Start Valve
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017020219674

## Discrepancy

WHEN OPENING IDG DOOR ON THE NR 2 ENGINE, FOUND A B-NUT CAP IN THE DOOR.  ACFT GROUNDED.   FOUND CAP MISSING FROM FITTING ON THE NR 2 ENGINE START VALVE.  REINSTALLED THE CAP.  OKAY FOR CONT SERVICE.

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