Service difficulty report · Indication Sys · Boeing 777300ER

Difficulty date
October 24, 2021
Submitted
October 25, 2021
Operation
Air carrier
Aircraft
N2250U
Make and model
Boeing 777300ER
Aircraft serial
66590
Aircraft time
7,048 hours, 838 cycles
Part
Indication Sys
Condition
Failed
Location
Center Hyd Sys
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
A

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

What was found

DECLARED EMERGENCY CENT HYD QUANT WENT TO ZERO VERIFIED CENTER SYSTEM HYDRAULIC QUANTITY RESERVOIR LEVEL PLACARDS APPLIED. NORMAL. HYDRAULIC SYSTEM PRESSURES OK. REQUEST MEL. . REVERSED MEL. ON RESERVE ISOLATION VLV AND NOSE GEAR, GEAR HANDLE, ALSO NO DEFECTS NOTED. NO FLUCTUATION IN INDICATION ISOLATION VLV.VISUAL ON CTR RESERVOIR QTY IS GOOD. ACCOMPLISHED NOR MSGS NOTICED. OK FOR SERVICE. CLEANED AND RECONNECTED BOTH CONNECTORS. 'HYDIM' GRND OPS TEST PASSED PER MM 29-11-00.CYCLED FLAPS SEVERAL TIMES ON BOTH CL AND CR ELEC PUMPS, NO DEFECTS NOTED.WITH LNDG GEARS PINNED,CYCLED.

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