Service difficulty report · Skin · Boeing 747428F

Difficulty date
August 17, 2010
Submitted
October 11, 2010
Operation
Air carrier
Aircraft
N580UP
Make and model
Boeing 747428F
Aircraft serial
25632
Aircraft time
73,632 hours, 13,252 cycles
Engine
Ge CF680C2B1F
Part
Skin
Condition
Misrepaired
Location
Bs 1697-1723
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

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

What was found

INSPECTION TYPE:C, SURVEY SEQ NR580-F1-11, FUSELAGE SKIN AT BETWEEN BS1697 TO BS 1723 AND STR 44R-47R EXISTING REPAIR DOES NOT CORRELATE TO EFN 58020071001. SKIN REPAIRED IAW RS R53-00-36836 & EO B747-5330-4005-A. THIS REPAIR IS CLASSIFIED AS A MAJOR REPAIR. ORG MATL CLAD PLATE 2024T351- 0.071" AT TRIMMED OUT AREA OF 0.250" THK MACHINED SKIN. DAMAGE OF DENT WITH CUTOUT SIZE 2.9" X 6.5" FINAL CUTOUT AT OVERLAPPING SKIN 20.5" X 14.6250", OVERLAPPING SKIN 13.2500" X 2.7500".REPAIR SIZE 33.125" X 24.5"