SDR SWAA2023072871104

Service difficulty report · Floor Support · Boeing 7377BD

Difficulty date: June 25, 2023
Submitted: July 28, 2023
Operation: Air carrier
Aircraft: N7721E
Make and model: Boeing 7377BD
Aircraft serial: 34479
Aircraft time: 56,723 hours, 30,056 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: UNKNOWN
Condition: Cracked
Location: Zn 100 Fus Lower
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 WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS312 TO BS328 AT LBL46 FWD GALLEY AND LAV 2023-404973<[01] REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS312 TO BS328 AT LBL46 FWD GALLEY AND LAV IAW B737-700 SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG 141A5400 SHEET: 26 REV:- SEE INDIVIDUAL SIGN OFF BELOW.;[02] REPLACED WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BS312 TO BS328 AT LBL46 FWD GALLEY AND LAV IAW B737-700 SRM 51-40-02; SRM 51-10-02 ITEM 9 AND DWG 141A5400 SHEET: 26 REV:- SEE INDIVIDUAL SIGN OFF BELOW.<BR>RII

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