SDR CALA2018031400917

Service difficulty report · Intercostal · Boeing 757222

Difficulty date: March 13, 2018
Submitted: March 14, 2018
Operation: Air carrier
Aircraft: N568UA
Make and model: Boeing 757222
Aircraft serial: 26674
Aircraft time: 81,729 hours, 27,521 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Part number: 143N5499
Condition: Corroded
Location: Bs 740-760
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

FWD CARGO, INTERCOSTAL HAS CORROSION ON THE OTBD SURFACE AND LOWER FLANGE BETWEEN BS 740 TO 760, OTBD OF STRINGER 27L. AFTER CORROSION REMOVAL FOUND TO BE OUT OF LIMITS IAW SRM 53-00-04, PG 103, DETAIL II. REMOVED AND REPLACED THE INTERCOSTA L IAW DRAWING 143N5499, AND SRM 51-40-02, PG 2.