Service difficulty report · Hydraulic System · Boeing 757222

Difficulty date
February 28, 2011
Submitted
March 4, 2011
Operation
Air carrier
Aircraft
N544UA
Make and model
Boeing 757222
Aircraft serial
25322
Aircraft time
72,672 hours, 20,932 cycles
Engine
Pwa PW2037
Part
Hydraulic System
Condition
Leaking
Location
Nr 2 Drain
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

HYD DRIP 7 DROPS PER MINUTE FROM LT PYLON STRUT DRAIN NR 2. OPENED PYLON CAP AND CHECKED FOR LEAKS ALONG LT STRUT DRAIN. NONE NOTED, AREA DRY. FOLLOWED NR 2 STRUT DRAIN TOP TO BOTTOM. NO LEAKS NOTED. EXERCISED LT RVSR. NO LEAKS NOTED. RAN ENGINE FOR 10 MINUTES USING LT EDP TO EXERCISE HYD USERS. NO LEAKS NOTED. CLOSED UP PYLON. RETURNED ACFT TO NORMAL. RECHECKED WITHIN 25 HRS PER MM. OK, NO LEAKS FOUND WITH PUMPS RUNNING, AREA DRY.