What was found
NR 1 ENGINE BLEED AIR VALVE FLAG DID NOT COME ON DURING PREFLIGHT CHECKLIST WITH TWIST GRIPS AT FLIGHT. REMOVED AND REPLACED BLEED VALVE IAW ARRIEL1 E2 75-31-00-900-804-A01; MOC SUCCESSFULLY COMPLETED.
- Difficulty date
- September 18, 2025
- Submitted
- September 18, 2025
- Operation
- General aviation
- Filed by
- QR9R369D
M1 Support Services - Make and model
- Bolkms BK117C2
- Aircraft serial
- 9780
- Aircraft time
- 3,679 hours
- System (JASC)
- 7532 · Compressor Bleed Valve
- Part
- Bleed Valve
- Part number
- 9550164740
- Part serial
- 5965
- Condition
- Failed
- Location
- Nr 1 Engine
- Stage of operation
- TX
- How discovered
- V
- Nature of condition
- F
- Precautionary procedure
- C
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.