Service difficulty report · Intercostal · Boeing 757232

Difficulty date
February 18, 2016
Submitted
February 19, 2016
Operation
Air carrier
Aircraft
N652DL
Make and model
Boeing 757232
Aircraft serial
24392
Aircraft time
87,049 hours, 36,361 cycles
Part
Intercostal
Condition
Corroded
Location
Bs 1540-1560
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

AFT CARGO INTERCOSTAL CORRODED BS 1540-1560, BETWEEN S27L-26L, CP53-153-01I. REMOVED CORROSION FROM INTERCOSTAL BS 1540-1560, S27L-26L IAW SRM 51-10-02. UT INSP AREA IAW NDTM PT 4 , 51-00-10 ORIG MATERIAL .040", REM .035", A 15251. MATERIAL LOSS .005" AREA FOUND TO BE OUT OF LIMITS IAW SRM 53-00-04, FIG 101. REMOVED INTERCOSTAL, FABRICATED NEW INTERCOSTAL FROM 70750.032", PO ST00004929, DIM 19.8" X 3" AND HEAT TREATED TO T6 CONDITION. LOCATED, DRILLED AND INSTALLED NEW INTERCOSTAL ALL IAW SRM 51-40-02, 51-40-05 AND DWG 146N5434, REV.