Service difficulty report · Floorbeam · Boeing 73776N

Difficulty date
April 16, 2024
Submitted
May 15, 2024
Operation
Air carrier
Aircraft
N7729A
Make and model
Boeing 73776N
Aircraft serial
32675
Aircraft time
56,769 hours, 28,873 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Cracked
Location
Bs 540 Bl0-Lbl25
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

CUSTOMER REQUEST AAI INSPECTION PASSENGER CABIN; FLOOR STRUCTURE SUPPORT HAS CRACK AT STA 540; BL 0 TO LBL24.75 2024-253429<[01] EVALUATED CRACK OUT LIMITS DUE TO WAS NOT FOUND ALLOWABLE DAMAGE ON B737-700 SRM AND SUPPORT ANGLE WAS REPLACED IAW B737-700 SRM 51-40-02 AND SRM 51-10-02 ITEM 9; MEASURES OF CRACK IS: 0.235? TOOL USED IS CALIPER P/N: 500-752-20; S/N: B21014901 ; AND DUE DATE IS 24/OCT/24.;[02] EVALUATED CRACK OUT LIMITS DUE TO WAS NOT FOUND ALLOWABLE DAMAGE ON B737-700 SRM AND SUPPORT ANGLE WAS REPLACED IAW B737-700 SRM 51-40-02 AND SRM 51-10-02 ITEM 9; MEASURES OF CRACK IS: 0.235? TOOL USED IS CALIPER P/N: 500-752-20; S/N: B21014901 ; AND DUE DATE IS 24/OCT/24. JOB COMPLETED.

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