Service difficulty report · Skin · Boeing 747121

Difficulty date
March 10, 2006
Submitted
March 31, 2006
Operation
Air carrier
Aircraft
N681UP
Make and model
Boeing 747121
Aircraft serial
19661
Aircraft time
106,939 hours, 27,146 cycles
Part
Skin
Condition
Damaged
Location
Bs 1866 S40l
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

INSPECTION TYPE:C FX- SKIN LAP S-40L OUTER SKIN 1 TOP ROW FASTENER LOCATION AT BS 1866 FOUND MATERIAL LOSS APPROX 0.011" ( IE. 710% ). FUSELAGE OVERLAPPING SKIN REPAIRED AT BS 1860-1875.5 S39L - 40L AREA AS PER SRM 53-30-03 FIG 17 WITH ZERO TIME AT CRITICAL ROW FASTENER SUBSEQUENT INSP ARE NECESSARY FOR CAT B REPAIR REFER TO TABLE III FOR INSP REQUIREMENT.