What was found
WHILE ACCOMP PNC 129666 PRE-COOLER SENSOR CHANGE FOUND #1 ENG PRSOV FAILED OPEN. GROUNDED - YES. REMOVED & REPLACED #1 ENG PRSOV LK & OPS NORMAL REF B737-900 AMM 36-11-04. PNEUMATIC SYS LK & OPS GOOD REF AMM 36-11-00.
- Difficulty date
- September 27, 2018
- Submitted
- September 28, 2018
- Operation
- Air carrier
- Aircraft
- N462AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36362
- Aircraft time
- 17,486 hours, 5,839 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 32145526
- Part serial
- 15758
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 17,486 hours, 5,839 cycles
- 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.