Service difficulty report · Pump · Boeing 777FS2

Difficulty date
September 2, 2022
Submitted
September 10, 2022
Operation
Air carrier
Aircraft
N890FD
Make and model
Boeing 777FS2
Aircraft serial
41439
Aircraft time
39,275 hours, 6,393 cycles
Part
Pump
Condition
Leaking
Location
Hyd System
Stage of operation
NR
How discovered
O
Nature of condition
K, J
Precautionary procedure
B

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

What was found

PDIS 890 29-02 0368 02SEP22 KIX HYDRAULIC QUANTITY CENTER LOW NNC FOLLOWED BY RESERVE BRAKES STRG NNC. BOTH ECL CHECKLISTS RUN, SLOW LOSS OF CENTER HYDRAULIC QUANTITY UNTIL TOUCHDOWN. NORMAL EXTENSION OF GEAR AND FLAPS. LANDED STRAIGHT AHEAD AND AIRCRAFT TOWED IN. CENTER HYDRAULIC QUANTITY STABLE AT 0.12 AT SHUTDOWN. ***EMERGENCY DECLARED*** AT BLOCK IN, FOUND HYDRAULIC FLUID IS COMING FROM ADP COMPARTMENT BEHIND THE WING- TO BODY FAIRING ON THE AFT LEFT SIDE. FURTHER INSPECTION, FOUND FLUID IS LEAKING FROM LOWER ADP(C1) PUMP ITSELF. ORIG SUB DATE: 9/6/2022

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