Service difficulty report · Intercostal · Boeing 757324

Difficulty date
October 22, 2013
Submitted
October 22, 2013
Operation
Air carrier
Aircraft
N75851
Make and model
Boeing 757324
Aircraft serial
32810
Aircraft time
38,198 hours, 13,252 cycles
Part
Intercostal
Part number
146N54568
Condition
Corroded
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

SUPPORT TASK CORROSION ON UPPER CHORD OF INTERCOSTAL BS 1460 - BS 1480 STRINGER 28R ON RACK OUT OF LIMITS ORIG MATERIAL WAS .100 AFTER CORROSION REMOVAL MATERIAL LOSS WAS .037, REMAINING MATERIAL WAS .063 DEPTH GAUGE ID NO12-023A. R & R UPPER CHORD OF INTERCOSTAL IAW BOEING DRAWING NO 146N5456 & B 757-300 SRM51-20-02 PAR4G FIG1 51-40-02 FIG8,9,12 51-40-05 FIG2.