# SDR ASAA2023090344965

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2023
- Submitted: September 7, 2023
- Operation: Air carrier
- Aircraft: [N941AK](https://openairdocs.org/aircraft/N941AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44101
- Aircraft time: 4,205 hours, 1,211 cycles
- System (JASC): [3600 · Pneumatic System](https://openairdocs.org/jasc/3600)
- Part: Modulating Valve
- Part number: 632920703
- Part serial: 3021
- Condition: Faulty
- Location: #1 Engine
- Part time: 4,236 hours, 1,223 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/ASAA2023090344965

## Discrepancy

TECH SERVICES REQUEST FOR FOLLOW-UP TO MTX LIGHT & FAULT (#1 LEFT FAMV FAULT 36-12020 #1(LH) FAMV IS NOT IN COMMANDED POSITION)----(#PRI1)----ETOPS SIGNIFICANT SYSTEM----. GROUNDED - YES. (RESOLVED ON W/O: 1967601 TASKCARD: N/R-00001 ) REPLACED #1 FAMV REF AMM 36-12-03, LRU REPLACEMENT TEST AND PNEUMATIC TEST PASSED, NO FAULTS. SEAMC ASHROV NOTIFIED. THIS CLEARS TSR. OPENED AND CLOSED COWLS AND T/R'S REF AMM 71-11-04 AND 78-31-00.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.