Service difficulty report · Stringer · Boeing 747422

Difficulty date
November 1, 2006
Submitted
November 28, 2006
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Aircraft time
65,759 hours, 8,119 cycles
Engine
Pwa PW4056
Part
Stringer
Part number
65B076531043
Part serial
NA
Condition
Damaged
Location
Bs 480 Str 6r
Part time
65,759 hours, 8,119 cycles
Stage of operation
IN
How discovered
9
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

BS 480 STR 6R IS DAMAGED. DURING ACCOMPLISHMENT OF COA 848861 FOUND EXISTING SKIN REPAIR DOUBLER. REMOVAL & REPLACEMENT OF DOUBLER REQUIRED TO PERFORM NDT INSPECTION OF AREA BS 480 STR 6R. INSTALLED SKIN LAP REPAIR REF SRM 53-00-01 FIG 1. SUSPECT PRESSURIZATION CYCLE FATIGUE DAMAGE.