What was found
AIR TURNBACK DUE TO LOSS OF THE HYD SYSTEM -A- PRESSURE. FOUND THE 1 HYDRAULIC PUMP HAD LEAKED AROUND PRESSURE LINE. R & R THE O-RING IAW AMM.
- Difficulty date
- April 29, 2018
- Submitted
- May 1, 2018
- Operation
- Air carrier
- Aircraft
- N776WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 30591
- Aircraft time
- 62,814 hours, 366,805 cycles
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- O-Ring
- Part number
- NAS16128
- Condition
- Leaking
- Location
- Hyd Pump
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- K, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.