What was found
AIRCRAFT WAS GROUNDED: ON CLIMB OUT LOST CENTER HYD FLUID. QTY DECREASED TO ZERO. DECISION MADE TO RETURN TO LAX, EMERGENCY DECLARED AND LANDED OVERWEIGHT WITHOUT INCIDENT. MAINTENANCE REPLACED ADP (C2) IAW AMM 29-11-11-400-801.
- Difficulty date
- June 29, 2026
- Submitted
- July 2, 2026
- Operation
- Air carrier
- Aircraft
- N736AT
- Make and model
- Boeing 777323ER
- Aircraft serial
- 33538
- System (JASC)
- 2913 · Hydraulic Pump (Electric/Engine), Main
- Part
- Pump
- Part number
- 972952
- Part serial
- MX769103
- Condition
- Inoperative
- Location
- Zone 100
- Part time
- 18,867 hours, 2,271 cycles
- Stage of operation
- CL
- 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.