# SDR ASAA2020100933330

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2020
- Submitted: October 12, 2020
- Operation: Air carrier
- Aircraft: [N517AS](https://openairdocs.org/aircraft/N517AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35197
- Aircraft time: 43,234 hours, 12,733 cycles
- System (JASC): [7510 · Engine Anti-Icing System](https://openairdocs.org/jasc/7510)
- Part: Bleed Valve
- Part number: 32022221
- Part serial: 11573
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 38,330 hours, 11,477 cycles
- Stage of operation: IN
- 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/ASAA2020100933330

## Discrepancy

PER AD20201651-NG-36-1 NR 1 ENGINE 5TH STAGE BLEED AIR CHECK VALVE FAILED GAP CHECK.  REMOVED 5TH STAGE BLEED AIR CHECK VALVE NR 1 ENGINE, PER AD20201651-NG-36-1.  GROUNDED-YES.  R&R NR 1 ENGINE 5TH STAGE BLEED AIR VALVE, REF B737-800 AMM 36-11-02.  OPERATIONS AND LEAK CHECK GOOD.  ACCOMPLISHED AD 20201651-NG-36-1.

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