# SDR ASAA2023101045567

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 10, 2023
- Submitted: October 12, 2023
- Operation: Air carrier
- Aircraft: [N519AS](https://openairdocs.org/aircraft/N519AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36482
- Aircraft time: 52,902 hours, 15,655 cycles
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Anti-Ice Valve
- Part number: 32156185
- Part serial: 10916
- Condition: Malfunctioned
- Location: #2 Engine
- Part time: 29,983 hours, 9,705 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023101045567

## Discrepancy

ON DECENT # 2 ENG ANTI ICE VALVE STUCK OPEN. GROUNDED - YES. REMOVED AND REPLACED ENG 2 COWL TAI VALVE REF AMM 30-21-11. INSTALLATION TEST GOOD. TWO C/B'S PULLED AND RESET. ALTERNATE DEACTIVATION PROCEDURES USED PER MPM CHAPTER 5 TABLE 3 ITEMS 3,4,5,7,8. ALTERNATE DEACTIVATION PROCEDURES REVERSED.

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