Service difficulty report · Retainer · Boeing 7377BD

Difficulty date
September 19, 2023
Submitted
October 20, 2023
Operation
Air carrier
Aircraft
N7720F
Make and model
Boeing 7377BD
Aircraft serial
33922
Aircraft time
57,303 hours, 30,551 cycles
Part
Retainer
Part number
UNKNOWN
Condition
Cracked
Location
Zn 500 Left Wing
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 INTERNAL CAVITY LEADING EDGE ON RETAINER LOCATED OFSS250 TO OFSS256 AT LT WING 2023-584654<[01] REPLACED RETAINER LOCATED OFSS250 TO OFSS256 AT LEADING EDGE ON LT WING IAW B737-700 SRM 51-10-02 ITEM 9 DWG: 112A4402 SHEET:13 REV:-.;[02] REPLACED RETAINER LOCATED OFSS250 TO OFSS256 AT LEADING EDGE ON LT WING IAW B737-700 SRM 51-10-02 ITEM 9 DWG: 112A4402 SHEET:13 REV:-.

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