What was found
DURING HMG OP TEST, FOUND HMG VALVE UNABLE TO CLOSE WHEN TEST SWITCH RETURN TO NORMAL POSITION. REMOVED AND REPLACED HMG VALVE IAW AMM 24-25-03, REV 120. CARRIED OUT HMG SYSTEM OPS TEST IAW AMM 24-25-00, REV 120, FOUND SATISFACTORY.
- Difficulty date
- May 10, 2017
- Submitted
- May 11, 2017
- Operation
- Air carrier
- Aircraft
- N647GT
- Make and model
- Boeing 767306
- Aircraft serial
- 27611
- Aircraft time
- 78,015 hours, 19,620 cycles
- System (JASC)
- 2420 · AC Generation System
- Part
- Valve
- Part number
- EM91805
- Part serial
- 6121168R
- Condition
- Inoperative
- Location
- Hmg
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.