SDR DALA2015111006859

Service difficulty report · Intercostal · Boeing 757232

Difficulty date: October 29, 2015
Submitted: November 10, 2015
Operation: Air carrier
Aircraft: N650DL
Make and model: Boeing 757232
Aircraft serial: 24390
Aircraft time: 86,155 hours, 37,155 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
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 BAY INTERCOSTAL CORRODED AT BS 1540-1560, S-26L. REMOVED INTERCOSTAL WEB FROM AFT PIT BS 1540-1560. 100 PERCENT MATERIAL LOSS IAW SRM 53-10-53, FAB NEW INTERCOSTAL 7075-0 .032 AND ANGLE 7075T6 .040. HEAT TREATED INTERCOSTAL LOCATED AND DRILLED HOLE IAW DWG 146N5434, REV A. ALODINED & PRIMED BOTH IAW 51-20-01 TOP COATED BOTH INSTALL BOTH IAW DWG 146N54, REV A & DWG 146N5434, REV-ADCN, 001, 002, 003.