# SDR ASAA2022050538210

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2022
- Submitted: May 6, 2022
- Operation: Air carrier
- Aircraft: [N419AS](https://openairdocs.org/aircraft/N419AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41734
- Aircraft time: 33,889 hours, 10,801 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [8010 · Engine Cranking](https://openairdocs.org/jasc/8010)
- Part: Start Valve
- Part number: 32896305
- Part serial: 1557
- Condition: Failed
- Location: #1 Engine
- Part time: 28,223 hours, 8,978 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022050538210

## Discrepancy

NO N1 OR N2 ROTATION DURING THE START SEQUENCE- NUMBER 1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG START VALVE REF B737-900 AMM 80-11-03. PERFORMED PNEUMATIC LEAK CHECK REF AMM 71-00-00, NO LEAKS DETECTED, OPS CHECK GOOD, ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

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