Service difficulty report · Bolt · Boeing 74746NF

Difficulty date
February 14, 2003
Submitted
February 14, 2003
Operation
Air carrier
Aircraft
N453PA
Make and model
Boeing 74746NF
Aircraft serial
30811
Aircraft time
5,119 hours, 887 cycles
Part
Bolt
Condition
Stripped
Location
Actuator
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

LOWER FWD CARGO DOOR ACTUATOR HAD TWO SUPPORT CARGO DOOR ACTUATORS WITH INSUFFICIENT BOLT THREAD SHOWING AND THE OTHER TWO BOLTS HAD EXCESSIVE THREAD ENGAGEMENT AND BOTTOMED OUT, INDICATING THE ENTIRE ACTUATOR LOAD WAS CARRIED OUT BY ONLY TWO BOLTS. REPOSITIONED AND RE-TORQUE BOLTS IAW AMM 52-34-02.

More about the Boeing 747-46NF