Service difficulty report · Hydraulic Line · Boeing 757222

Difficulty date
July 5, 2011
Submitted
July 28, 2011
Operation
Air carrier
Aircraft
N544UA
Make and model
Boeing 757222
Aircraft serial
25322
Aircraft time
73,971 hours, 21,327 cycles
Engine
Pwa PW2037
Part
Hydraulic Line
Condition
Leaking
Location
Hydraulic Sys
Stage of operation
IN
How discovered
O
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

EVIDENCE OF HYDRAULIC FLUID ON TAIL SECTION OF AIRCRAFT. AFT FUSELAGE TAIL CONE HAS FLUID SPRAYED (APPEARS TO BE OIL NOT HYD) PREDOMINANTLY ON RIGHT. ACCMP'D CLEANED RESIDUAL OIL. RAN APU, NO ACTIVE LEAKS NOTED. LEAKING LINE ID BY MIDS. P/N BACH8C06EE0274B. LINE FROM BULKED FITTING TO RATIO CHARGER REMOVED LEFT SYS CENTER LINE. ITEM 300 SEAL, ON SHELF WHERE LINE ATTACHES. HELD ON BY TY WRAP AROUND BOOT. PANEL 324CL HAS ONE FASTENER THAT SPINS (NUTPLATE BROKEN). ALL OTHER FASTENERS ON PANEL ARE REMOVED. SECURED FASTNER REINSTALLED PANEL. REPLACED LINE PER IPC. ACCOMPLISHED RUDDER RATIO TEST PER MM AND RUDDER DEFLECTION. LEAK CHECK GOOD. ALL PANELS SECURED. L-C-R HYD RESEVOIRS WERE DEPRESSURIZED & VLV PINNED OPEN FOR RUDDER RATIO CHGR HYD HOSE RPLCMNT. REMOVED PINS. RESV PRESSURIZED.