SDR SWAA2025122942023

Service difficulty report · Stub Frame · Boeing 7377H4

Difficulty date: December 2, 2025
Submitted: December 29, 2025
Operation: Air carrier
Aircraft: N943WN
Make and model: Boeing 7377H4
Aircraft serial: 36913
Aircraft time: 51,234 hours, 31,377 cycles
System (JASC): 5310 · Fuselage Main, Structure
Part: Stub Frame
Condition: Cracked
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

CRACK FOUND ON THE R1 DOOR STUB FRAME, BS 291+ 8, WL 206+57, APPROX 0.1 INCH ABOVE SEAL DEPRESSOR. L: .3 INCH. REMOVED THE DAMAGED STUB FRAME, LOCATED, DRILLED, AND INSTALLED A NEW STUB FRAME IAW SRM 51-40-05-0G-0, 51-40-02-0G-0, AND DWG 141A8370, REV D.

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