Service difficulty report · Channel · Boeing 747451

Difficulty date
February 20, 2014
Submitted
February 25, 2014
Operation
Air carrier
Aircraft
N671US
Make and model
Boeing 747451
Aircraft serial
26477
Aircraft time
65,864 hours, 8,295 cycles
Part
Channel
Condition
Cracked
Location
Bs 1180
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

ONE CRACKED FASTENER HOLE FOUND IN THE FWD CHANNEL AT BS 1180 ON RT SIDE UPPER LOBE TENSION TIE. CRACKED FASTENER HOLE LOCATIONS AT THE UPPER ROW, FIFTH FASTENER HOLE FROM OTBD. INSTALLED REPAIR ANGLES AND CHANNEL IAW SRM 53-40-30, REPAIR 2.