SDR CALA2025110210826

Service difficulty report · Intercostal · Boeing 757224

Difficulty date: November 1, 2025
Submitted: November 3, 2025
Operation: Air carrier
Aircraft: N17128
Make and model: Boeing 757224
Aircraft serial: 27567
Aircraft time: 98,445 hours, 21,589 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Part number: 143N53501
Condition: Corroded
Location: Zone 100
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 BAY, BETWEEN BS 740 - 760, S27L-28L, INTERCOSTAL HAS EVIDENCE OF CORROSION. REMOVED CORROSION IAW SRM 51-10-02-OG, EVALUATED DAMAGE (ORIGINAL THICKNESS 0.032") REMAING TH 0.022" FOUND TO BE OUT OF LIMITS IAW SRM 53-30-04-01-1 T88093, INTERCOSTAL AND CLIP REMOVED AND REPLACED IAW SRM 51-40-02-OG.