# SDR ASAA2016042416497

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 24, 2016
- Submitted: April 25, 2016
- Operation: Air carrier
- Aircraft: [N479AS](https://openairdocs.org/aircraft/N479AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 60576
- Aircraft time: 3,130 hours, 1,030 cycles
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 32896302
- Part serial: 17276
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 3,130 hours, 1,030 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/ASAA2016042416497

## Discrepancy

NR 1 ENGINE HAS HISTORY OF START VALVE NOT INDICATING CLOSED AFTER START, ACFT  GROUNDED. REMOVED AND INSTALLED NEW START VALVE REF AMM 80-11-03. ENGINE RUN REQUIRED TO VERIFY REPAIR. PERFORMED OPS CHECK REF AMM TASK 71-00-00-800-811-F00, TESTS 1 & 3A.  OPS CHECK GOOD.  START VALVE INDICATES CLOSED AFTER START & NO LEAKS FOUND.

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