Service difficulty report · Skin · Boeing 747228F

Difficulty date
August 19, 2010
Submitted
August 31, 2010
Operation
Air carrier
Aircraft
N753SA
Make and model
Boeing 747228F
Aircraft serial
21787
Aircraft time
119,067 hours, 23,482 cycles
Part
Skin
Condition
Cracked
Location
Zone 100
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

HFEC OPEN HOLE CARRIED OUT AND FOUND CRACK INDICATION 01 EA HOLE AT 6 O'CLOCK DIRECTION BY LOOKING INBD AT FWD UPPER CORNER OF LOWER LOBE OF AFT CARGO DOOR CUTOUT. CRACKED AREA TRIMMED OUT AS PER SRM 53-30-03 FIGURE 62 REVISION 117. HFEC INSPECTION CARRIED OUT ON THE TRIMMED OUT AREA AND FOUND NO CRACK EVIDENT. HFEC OPEN HOLES CARRIED OUT ON ALL FASTENER LOCATION WITHIN 6 INCHES RADIUS OF THE CRACKED AND FOUND NO CRACK EVIDENT. FABRICATED REPAIR DOUBLERS AND FILLER AS PER SRM 53-30-03 FIGURE 62 REVISION 117 USING MATERIAL 2024T3-0.080 INCH, 2024T3-0.100 INCH, 2024T3-0.140 INCH AND S/S 15-5PH-0.125 INCH. FABRICATED REPAIR DOUBLERS AND FILLER PROTECTED AND INSTALLED AS PER SRM 51-10-02 AND SRM 53-30-03 FIGURE 62 REVISION 117.