SDR SWAA2023012692388

Service difficulty report · Stiffener · Boeing 7377BD

Difficulty date: January 18, 2023
Submitted: January 26, 2023
Operation: Air carrier
Aircraft: N7724A
Make and model: Boeing 7377BD
Aircraft serial: 36725
Aircraft time: 42,328 hours, 22,503 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Stiffener
Condition: Cracked
Location: Bs 663
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

STIFFENER CRACKED AT CENTER WING LOWER FUSELAGE L/H SIDE VAPOR BARRIER BULKHEAD STA 663.75 @ LBL28 MKD DOT<[01] REMOVED FASTENERS FOR ACCESS STIFFENER DAMAGED AT L/H SIDE VAPOR BARRIER BULKHEAD STA; 663.75 LBL 28'. REF. SRM. 51-40-02;[02] OK TO INSTALL NEW STIFFNER;[03] INSTALLED STIFFENER AT CENTER WING LOWER FUSELAGE L/H SIDE VAPOR BARRIER BULKHEAD STA 663.75 AT LBL28 AS PER BOEING 737-700 SRM 51-40-02-OG-0;[04] VERIFIED STEP 3.

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