# SDR ASAA2020022413258

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2020
- Submitted: February 24, 2020
- Operation: Air carrier
- Aircraft: [N402AS](https://openairdocs.org/aircraft/N402AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41189
- Aircraft time: 28,684 hours, 9,286 cycles
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 32896302
- Part serial: 3108
- Condition: Inoperative
- Location: #1 Engine
- Part time: 20,973 hours, 6,828 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020022413258

## Discrepancy

#1 ENG FAILED TO START WITH AIR CART. GROUNDED - YES. REMOVED AND REPLACED #1 ENG START VALVE WITH NEW PER B737-900 AMM 80-11-03, OPS TEST GOOD. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

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