Service difficulty report · Seal · Boeing 727227

Difficulty date
January 3, 1998
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N487FE
Make and model
Boeing 727227
Aircraft serial
21490
Part
Seal
Condition
Leaking
Location
Rt Elev Hyd
Stage of operation
CL
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

CLIMBOUT FL260 NOTICED THE HYD SYS-A QTY HAD DECREASE TOWARD THE 0 GAL IND WITH NORM SYS PRES OF 3000 PSI. THE FLUID QTY IND BRKR WAS PULL THE RESET. SYS PRESS AND QTY REMAIN SAME, THE HYD SYS-A PUMP LO PRESS LIGHT BOTH FLICKERED AND SYS-A PRESS DECREASE THEN TOWARD 0 PSI. PERFORM STAB PROC AND THE CKLIST NAMED IN THE FOLLOW ORDER: HYD SYS LEAK OR LOSS, SYS-A RESTORATION LOSS, HYD SYS LEAK OR LOSS IN RANGE APPRO AND BEFORE LAND CKLIST. PERFORM A MAIN GEAR EXT PROC AND QTY LOSS. PER CKLIST CLOSED THE HYD SYS-A FLUID SHUTOFF SWITCH WITH THE ENG RUNNING. THE FLUID SOV SWITCH WERE CLOSED FOR APPROX 10 MIN. FND AFT FILT ER HOUSING LEAK ON RT ELEV PKG. REPLACED HSNG CAP AND SEALS, LEAK CK OK.