SDR CALA2015092994545

Service difficulty report · Pump · Boeing 777222

Difficulty date: September 26, 2015
Submitted: September 29, 2015
Operation: Air carrier
Aircraft: N769UA
Make and model: Boeing 777222
Aircraft serial: 26921
Aircraft time: 81,080 hours, 14,041 cycles
Engine: Pwa PW4077
System (JASC): 2913 · Hydraulic Pump (Electric/Engine), Main
Part: Pump
Condition: Leaking
Location: Hydraulic Sys
Stage of operation: CR
How discovered: O
Nature of condition: K, J
Precautionary procedure: A

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

What was found

LEFT HYD SYS RESERVOIR QTY LOW, QTY < .40 ADVISORY MSG 01. ACTIVE CRUISE HARD, RESERVOIR LT FLUID QTY IS LOW. DB HYD INTERFACE MODULE, HYDIM LT MSG 02. ACTIVE CRUISE HARD, RESERVOIR LT FLUID QTY IS LOW. MSG 2910340 ACTIVE ER HARD. FOUND LT EDP HYD PUMP LEAKING. REPLACED PUMP IAW MM 29-11-05. NO OTHER LEAK PRESENT. SYS TESTED NORMAL ON ENG RUN.