Service difficulty report · Filter · Boeing 75724APF

Difficulty date
July 26, 2025
Submitted
July 28, 2025
Operation
Air carrier
Aircraft
N436UP
Make and model
Boeing 75724APF
Aircraft serial
25467
Aircraft time
31,622 hours, 20,585 cycles
Part
Filter
Condition
Faulted
Location
Hyd System
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY DECLARED, LT HYD SYSTEM QTY AND SYSTEM PRESSURE LOST IN FLIGHT. LEFT ENG HYD PUMP AND LT ELECTIC PUMP SHUTOFF PER QRH FOR REMAINDER OF FLIGHT 45 MINTES. REMOVED AND REPLACED LT HYD RETURN FILTER MOD DPI PER AMM 29-11-15. OPS AND LEAK CHKD OK. AND SERVICED LT HYD IAW AMM 12-12-01V.

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