Service difficulty report · Intercostal · Boeing 757231

Difficulty date
January 12, 2023
Submitted
January 13, 2023
Operation
Air carrier
Aircraft
N718TW
Make and model
Boeing 757231
Aircraft serial
28486
Aircraft time
81,164 hours, 20,962 cycles
Part
Intercostal
Condition
Corroded
Location
Bs 720-740
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

CORROSION ON INTERCOSTAL 2 EAS BSTA 720/740 AT S-28R AND S-28L. INTERCOSTAL BTW STA 720 TO STA 740 AT S-28R WAS REPLACED AND INTERCOSTAL BTW STA 720 TO STA 740 AT S-28L WAS REPAIRED PER SRM (ET) (HFEC) WAS ACCOMPLISHED ON INTERCOSTAL BTW STA 720 TO STA 740 AT S-28L, NO CRACKS WERE FOUND ON EDGE OF TRIMMED AREA PER & NDT MANUAL.