# SDR ASAA2023051743264

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2023
- Submitted: May 19, 2023
- Operation: Air carrier
- Aircraft: [N915AK](https://openairdocs.org/aircraft/N915AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44080
- Aircraft time: 6,979 hours, 2,164 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Modulating Valve
- Part number: 632920703
- Part serial: 2269
- Condition: Faulted
- Location: #1 Engine
- Part time: 5,992 hours, 1,733 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023051743264

## Discrepancy

DURING WALK AROUND FOUND STATUS MSG "BLEED FAN VALVE" WITH ASSOCIATED WITH "MAINT" LIGHT ON... MAINT FAULT CODE 36-12020. GROUNDED - YES. REPLACED #1 ENG FAMV REF B737-9 AMM 36-12-03 ACCOMP.

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