# SDR ASAA2021050434752

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2021
- Submitted: May 6, 2021
- Operation: Air carrier
- Aircraft: [N464AS](https://openairdocs.org/aircraft/N464AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40714
- Aircraft time: 26,816 hours, 8,463 cycles
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Part number: 32156184
- Part serial: 4616
- Condition: Stuck
- Location: Nr 2 Engine
- Part time: 48,077 hours, 14,487 cycles
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021050434752

## Discrepancy

SHORTLY AFTER TAKEOFF THE #2 (R) COWL VALVE OPEN LIGHT ILLUMINATED BRIGHT. COWL VALVE APPEARS TO BE STUCK OPEN. NO TAI INDICATION ABOVE N1, QRH COMPLIED WITH. GROUNDED - YES. REMOVED AND REPLACED #2 ENG INLET COWL THERMAL VALVE AS REQUIRED . LEAK CKD NO LEAKS NOTED OPS CKD GOOD UNLOCKED VALVE. REF B737-900 AMM 30-21-11-400-801.

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