Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
March 23, 2021
Submitted
May 3, 2021
Operation
Air carrier
Aircraft
N408WN
Make and model
Boeing 7377H4
Aircraft serial
27895
Aircraft time
66,599 hours, 39,435 cycles
Part
Stringer
Condition
Corroded
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

CORROSION STRINGER 25L LOCATED BS540 AND WBL 156 AT FWD CARGO COMPARTMENT / REPAIRED STRINGER 25L LOCATED BS540 TO BS500D AND WBL156 AT FWD CARGO COMPARTMENT IAW B737-700 SRM 53-00-03-2R-1 REPAIR . THIS REPAIR IS CONSIDERED CATEGORY 'A' AND NO FURTHER ACTION OR INSPECTION REQUIRED MATERIAL USED ALUMINIUM SHEETS PN 7075-T6 0.045' PO 2020-113097 PN 7075-T6- 0.050' PO 213289

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