Service difficulty report · Pcu · Boeing 777FS2

Difficulty date
November 22, 2019
Submitted
December 6, 2019
Operation
Air carrier
Aircraft
N887FD
Make and model
Boeing 777FS2
Aircraft serial
41066
Aircraft time
27,928 hours, 4,553 cycles
Part
Pcu
Part number
B43540008
Part serial
4389
Condition
Leaking
Location
Spoiler
Stage of operation
CL
How discovered
O
Nature of condition
K, J
Precautionary procedure
K

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

What was found

ON CLIMBOUT RECEIVED "HYD QTY LOW R" EICAS, FOLLOWED BY "HYD PRESS PRI R" EICAS AND THEN "HYD PRESS SYS R" EICAS, COMPLIED WITH ALL NON-NORMAL CHECKLISTS. CHECKED FOUND RT ENGINE EDP HYD LEAK, ALSO FOUND HYD LEAK FROM NR 6 SPOILER PCA. CHECK THE RT EDP AND ACMP PRESSURE AND CASE DRAIN FILTERS DPI NO TRIP. R&R RT EDP PER AMM29-11-05-4-2. R&R THE RT HYD SYS RETURN FILTER ELEMENT PER AMM 29-11-44-4. REMOVED AND REPLACED RT EDP PRESSURE AND CASE DRAIN FILTER PER AMM 29-11-42-4. REMOVED AND REPLACED RT ACMP PRESSURE AND CASE DRAIN FILTER PER AMM 29-11-40-4. REMOVED & REPLACED NR 6 SPOILER PCU IN REF TO AMM 27-61-07-4. OPS AND LEAK CHECK GOOD. OK FOR SERVICE.

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