SDR SWAA2026071398473

Service difficulty report · Intercostal · Boeing 7378

Difficulty date: May 14, 2026
Submitted: July 14, 2026
Operation: Air carrier
Aircraft: N8705Q
Make and model: Boeing 7378
Aircraft serial: 42558
Aircraft time: 21,339 hours, 9,887 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Part number: 147A5660U22
Condition: Corroded
Location: Zone 200
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

AFT CABIN RT INTERCOSTAL HAS CORROSION BETWEEN STA 947 TO STA 967 RBL 51, OUT OF LIMITS IAW SRM 53-70-51-1A-1. LOCATED FASTENER HOLES IN REPLACEMENT INTERCOSTAL BS.947 - 967, RBL 51, PER SRM 51-40-05. REMOVED AND REPLACED INTERCOSTAL PER SRM 51-40-02.

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