Service difficulty report · Skin · Boeing 747121

Difficulty date
October 12, 2001
Submitted
October 26, 2001
Operation
Air carrier
Aircraft
N681UP
Make and model
Boeing 747121
Aircraft serial
19661
Aircraft time
97,510 hours, 25,124 cycles
Part
Skin
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

INSPECTION TYPE:C CRACK REVEALED ON SKIN AT ONE EA BOLT HOLE AT LT BS 1350 UPPER FWD FITTING AREA AT LOWER MOST AND AFT ONE BY APPROX 0.030 INCH LONG AS PER ATTACH FIGURE. CRACKED HOLE FINAL REAMED TO 0.625 INCH AND CONFIRMED CRACK FREE, A BOLT P/N: BACB30UU10K WAS INSTALLED AS PER HX RS R53-43-34687 ITEM C3 REQUIREMENT.