Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
April 30, 2021
Submitted
May 24, 2021
Operation
Air carrier
Aircraft
N738CB
Make and model
Boeing 7377H4
Aircraft serial
27870
Aircraft time
74,656 hours, 44,175 cycles
Part
Stringer
Condition
Cracked
Location
Bs 540 S25l
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 STRINGER 25L LOCATED BS 540 AT FWD CARGO COMPARTMENT / PERFORMED PERMANENT REPAIR ON STRINGER 25L LOC BS 500D TO BS540 AT FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR 1 FIGURE 206 MATERIAL USED IS: 7075T0.045' PO # 202113400800101 AND7075R0.50' PO # 202112114500103 CONVERTED FROM 7075T0 TO CONDITION 7075T6 IAW BAC5602

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