SDR DALA2017080105893

Service difficulty report · Intercostal · Boeing 757232

Difficulty date: July 31, 2017
Submitted: August 3, 2017
Operation: Air carrier
Aircraft: N669DN
Make and model: Boeing 757232
Aircraft serial: 25142
Aircraft time: 83,092 hours, 38,081 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Condition: Corroded
Location: Bs 760-780
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

FWD CARGO BS 760 - 780, STRINGER 22L, INTERCOSTAL CORRODED. FOUND THE INTERCOSTAL TO BE 100% CORRODED OUT OF LIMITS. REMOVED AND REPLACED THE INTERCOSTAL IAW SRM 51-40-02, SRM 51-40-05, DRAWING 143N5335 REV A, AND DRAWING 141N5150 REV D.