Service difficulty report · Stringer Splice · Boeing 7377H4

Difficulty date
January 15, 2021
Submitted
February 17, 2021
Operation
Air carrier
Aircraft
N406WN
Make and model
Boeing 7377H4
Aircraft serial
27894
Aircraft time
66,898 hours, 39,718 cycles
Part
Stringer Splice
Condition
Corroded
Location
Ee Bay
Stage of operation
IN
How discovered
V
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 STRUCTURE ON STRINGER SPLICE BST 360 STR 27RH WL 148.5 AT EQUIPMENT ELECTRONIC COMP / REPLACED STRINGER SPLICE LOC ON BS360 STR27RH WL WL 148.5 AT EQUIPMENT ELECTRONIC COMP IAW SPM B737-700 51-40-02 AND DWG140A9101 SHEET 17 REV 51-10-02 ITEM 9 NOT FOUND ALLOWABLE DAMAGE LIMITS ON SRM B737-700 FABRICATED FROM 7075-0.045' HEAT TREATED AND CONVERTED FROM T0 AND T6 IAW BAC 5602

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