# SDR ASAA2023072744282

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2023
- Submitted: July 28, 2023
- Operation: Air carrier
- Aircraft: [N920AK](https://openairdocs.org/aircraft/N920AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44086
- Aircraft time: 6,911 hours, 2,051 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Modulating Valve
- Part number: 632920703
- Part serial: 2226
- Condition: Faulty
- Location: #2 Engine
- Part time: 6,161 hours, 1,814 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/ASAA2023072744282

## Discrepancy

ON PDC FOUND MAINT. LIGHT ILLUMINATED AND BLEED FAMV R FAULT MSG ON STATUS PAGE. GROUNDED - YES. REMOVED AND REPLACED FAN AIR MODULATION VALVE REF AMM 36-12-03/401. ELECTRICAL LRU - REPLACEMENT TEST PASS, PNEUMATIC ENGINE ON -SYSTEM TEST PASS. CLEARED MAIN LIGHT AND LATCHED MESSAGE. OPS CK GOOD. SEAMC PETER NOTIFIED. (REF TSR714700)

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