Service difficulty report · B-Nut · Boeing 747123

Difficulty date
October 5, 2000
Submitted
November 27, 2000
Operation
Air carrier
Aircraft
N859FT
Make and model
Boeing 747123
Aircraft serial
20326
Aircraft time
76,567 hours, 18,051 cycles
Part
B-Nut
Condition
Leaking
Location
Hyd Qty Ind
Stage of operation
CL
How discovered
O
Nature of condition
K, J
Precautionary procedure
O

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

What was found

ABNORMALITY FOUND ON NR 4 HYD QTY DROPPED 6 GAL AFTER LANDING GEAR RETRACTION CONTINUED FLIGHT WITH AOP OFF AND EDP IN DEPR. FOUND HYD LEAK FORM PRESS LINE B-NUT ABOVE PYLON LWR BLHD THEN RETIGHTED B-NUT SO LEAK CKED OK WITH MOTORING.