Service difficulty report · Stub Frame · Boeing 7377H4

Difficulty date
April 28, 2026
Submitted
May 20, 2026
Operation
Air carrier
Aircraft
N258WN
Make and model
Boeing 7377H4
Aircraft serial
32516
Aircraft time
64,221 hours, 38,671 cycles
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

FSD STUB FRAME IS CRACKED AT BS 296; BETWEEN STR 8 AND 9 RT; CRACK IS 0.6' LONG LOCATED IN THE FRAME JOGGLE AREA LOCATED ABOVE THE TOP END OF THE SEAL DEPRESSOR; CONTACT ENGINEERING VIA THE TSR POLICY NOTE THE CRACK WAS FOUND USING HFEC. REMOVED AND REPLACED FSD STUB FRAME IAW SRM 51-40-02-0G-0, AND DWG 141A8370 REV D.

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