SDR UIEA01065

Service difficulty report · Doubler · Boeing 747243B

Difficulty date
June 26, 2001
Submitted
July 12, 2001
Operation
Air carrier
Aircraft
N516MC
Make and model
Boeing 747243B
Aircraft serial
22507
Part
Doubler
Part number
65B01714565
Condition
Cracked
Location
Bs 420
Part time
77,446 hours
Stage of operation
IN
Nature of condition
O
Precautionary procedure
O

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

What was found

DURING INSPECTION, FOUND FRAME STATION 420 CRACKED AT STRINGER 14 (E)L AND STRINGER 15L AT THE SHEAR DOUBLER COMMON TO THE STRINGER CUTOUT. TRIMMED AWAY TWO FASTENER ROWS OF THE OUTBOARD REINFORCING ANGLE. STOP DRILLED CRACKS. FABRICATED FILLER, DOUBLERS AND REPAIR ANGLE, INSTALLED PER STANDARD PRACTICES. REINSPECT AREA PER SB 747-53A2265 AT 3000 CYCLE INTERVALS. (M)