# SDR ASAA2020012331975

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2020
- Submitted: January 28, 2020
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 44,066 hours, 13,112 cycles
- Engine: Cfmint CFM567B27B3
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 32896302
- Part serial: 6626
- Condition: Stuck
- Location: Nr 2 Engine
- Part time: 56,693 hours, 22,389 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020012331975

## Discrepancy

AFTER PUSHBACK #2 ENGINE START VALVE FAILED TO CLOSE AT 56% N2 QRH COMPLETED, ALERT EXTINGUISHED. GROUNDED - YES. REMOVED AND REPLACED #2 ENG START VALVE PER B737-800 AMM 80-11-03/401. LEAK CK GOOD PER AMM TASK 71-00-00-800-811-F00. GROUND VERIFICATION CKS GOOD.

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