Service difficulty report · Channel · Boeing 747422

Difficulty date
June 27, 2016
Submitted
June 28, 2016
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
Channel
Condition
Cracked
Location
Fuselage
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

RIGHT STA 1120, R70 TENSION TIE AREA FOUND 1 EA FASTENER HOLE CRACKED AT FWD CHANNEL LAYER APPROXIMATELY 1-8" IN LENGTH AT 1 O`CLOCK POSTION. BS 1120, FWD AND AFT TENSION TIE CRACKED AREA REPAIRED IAW SRM 53-40-30, FIG 201, REPAIR 1.