Service difficulty report · Pump · Boeing 7572Q8

Difficulty date
December 13, 2024
Submitted
December 16, 2024
Operation
Air carrier
Aircraft
N710TW
Make and model
Boeing 7572Q8
Aircraft serial
28169
Aircraft time
100,323 hours, 26,124 cycles
Part
Pump
Part number
3031863001
Part serial
MX631990
Condition
Low Pressure
Location
Hyd System
Part time
61,500 hours, 28,614 cycles
Stage of operation
AP
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

SHIP 6807 -MISC/DE- LOSS OF LEFT HYDRAULIC QUANTITY AND PRESSURE AFTER GEAR EXTENSION. CORRECTIVE ACTION: REPLACED LEFT GEAR DOWNLOCK ACTUATOR HOSES. R/R LT HYD SYS ENG AND ELEC PUMPS AND ALL RELATED FILTERS FOR LT HYD SYS PUMPS AND PTU.

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