# SDR ASAA2022060538575

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 5, 2022
- Submitted: June 7, 2022
- Operation: Air carrier
- Aircraft: [N918AK](https://openairdocs.org/aircraft/N918AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44083
- Aircraft time: 3,800 hours, 1,214 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Modulating Valve
- Part number: UNKNOWN
- Condition: Warning Light
- Location: Unknown
- Stage of operation: LD
- 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/ASAA2022060538575

## Discrepancy

OVERHEAD "MAINT" CAUTION LIGHT ILLUMINATED UPON LANDING. GROUNDED - YES. FFR LOGGED 36-12021. #2 FAMV NOT IN COMMANDED POSITION. VALVE WAS IN FAILED OPEN POSITION. ACCOMPLISHED ENGINE ON PNEUMATIC SYSTEM TEST. OP CK NORMAL. FAULT RESET. REF B737-9 AMM 36-00-00-730-801.

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