What was found
WHILE PERFORMING NO1 ENG WASH T/C FOUND HPSOV OPEN/CLOSE LOCK BOLT HELICOIL CAME OFF. GROUNDED - YES. REMOVED AND REPLACED HPSOV WITH REF AMM 36-11-07. OPS CHECK GOOD.
- Difficulty date
- July 22, 2023
- Submitted
- July 24, 2023
- Operation
- Air carrier
- Aircraft
- N921AK
- Make and model
- Boeing 7379
- Aircraft serial
- 43337
- Aircraft time
- 6,811 hours, 1,968 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Valve
- Part number
- 632920682
- Part serial
- 2263
- Condition
- Unknown
- Location
- #1 Engine
- Part time
- 6,816 hours, 1,973 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.