# SDR ASAA2019030428480

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2019
- Submitted: March 7, 2019
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 20,589 hours, 6,725 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Anti-Ice Valve
- Part number: 32156185
- Part serial: 10640
- Condition: Failed
- Location: Nr 2 Engine
- Part time: 20,589 hours, 6,725 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019030428480

## Discrepancy

NR 2 COWL ENG ANTI ICE VALVE FAILED IN CLOSED POSITION WHEN SELECTED ON. (STAYED BRIGHT BLUE) SELECTED ON AF FL 240 SAT - 31 C, REFERENCED QRH 3.2 "ENGINE COWL OPEN OR TAI INDICATION". GROUNDED - YES. REPLACED TAI VALVE ON NR 2 ENGINE PER AMM 30-21-11. OPS CHECKED GOOD AND LEAK CHECK GOOD.

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