# SDR ASAA2017012319523

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2017
- Submitted: January 25, 2017
- Operation: Air carrier
- Aircraft: [N589AS](https://openairdocs.org/aircraft/N589AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35686
- Aircraft time: 35,183 hours, 10,641 cycles
- System (JASC): [3020 · Air Intake Anti/De-Ice System](https://openairdocs.org/jasc/3020)
- Part: Anti-Ice Valve
- Part number: 32156184
- Part serial: 2238C
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 47,600 hours, 19,098 cycles
- Stage of operation: CL
- 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/ASAA2017012319523

## Discrepancy

NR 1 COWL ANTI-ICE LIGHT CAME ON DURING CLIMBOUT WHILE USING ANTI-ICE. WENT OUT AFTER 2 MINUTES.   ACFT GROUNDED.  DURING TROUBLESHOOTING OF THE ANTI-ICE VALVE ON THE NR 1 ENGINE,  FOUND THE PRSOV IN THE OPEN POSITION WITH ENGINE SHUTDOWN AND APU AIR OFF.  REMOVED AND REPLACED THE PRSOV IAW AMM 36-11-04/401. NO LEAKS NOTED. COMPLIED WITH FIM 30-21 TASK 809. REMOVED AND REPLACED THE NR 1 ENGINE COWL TAI VALVE IAW AMM 30-21-11/401. OPS CHECKED NORMAL. NO LEAKS DETECTED.

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