Service difficulty report · Frame · Boeing 747422

Difficulty date
November 7, 2013
Submitted
November 27, 2013
Operation
Air carrier
Aircraft
N120UA
Make and model
Boeing 747422
Aircraft serial
29166
Aircraft time
59,645 hours, 6,899 cycles
Engine
Pwa PW4056
Part
Frame
Condition
Cracked
Location
Bs 1120
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

MAIN DECK BS 1120 LT TENSION TIE ONE FASTENER HOLE FOUND CRACKED FRAME AT 12 O'CLOCK POSITION APPROXIMATELY 0.0040 LENGTH. T FRAME REPAIRED IAW SRM 53-40-07 REPAIR 4 FIG 201.