Service difficulty report · Stub Frame · Boeing 7377H4

Difficulty date
April 14, 2025
Submitted
May 14, 2025
Operation
Air carrier
Aircraft
N293WN
Make and model
Boeing 7377H4
Aircraft serial
36612
Aircraft time
56,829 hours, 34,196 cycles
Part
Stub Frame
Condition
Cracked
Location
Zone 200
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

CRACK FOUND ON FSD STUB FRAME AT BS 291.5+8; .2' ABOVE SEAL DEPRESSOR; 1.6' IN LENGTH<[01] EVALUATED DAMAGE; NO ALLOWABLE DAMAGE FOUND AT SRM; UPPER STUB FRAME TO BE REPAIRABLE BY REPLACEMENT PER SRM 51-10-02; STEP 9. REMOVED FWD SERVICE DOOR UPPER STUB FRAME PER SRM 51-40-02. LOCATED AND DRILLED NEW UPPER STUB FRAME IAW B737-7 SRM 51-40-05-0G-0 AN DWG 141A8370 ID: 001 REV: C. PAINTED NEW STUB FRAME P/N: 141A8370U13 LOT: 1602401-1 IAW B737-7 SOPM 20-41-04. INSTALLED FWD SERVICE DOOR UPPER STUB FRAME PER SRM 51-40-02 AND DWG 141A8370 REV: D. PERFORMED ADJUSTMENT FWD SERVICE DOOR FWD UPPER LATCH RECEIVER IAW AMM 52-41-00-820-801 STEP 2.N.;[02] VERIFIED CORRECTIVE ACTION 1

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