Service difficulty report · Rail · Boeing 7377H4

Difficulty date
November 12, 2023
Submitted
December 13, 2023
Operation
Air carrier
Aircraft
N454WN
Make and model
Boeing 7377H4
Aircraft serial
29851
Aircraft time
64,962 hours, 38,713 cycles
Part
Rail
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 LEADING EDGE RAIL NUTPLATES LOCATED OFSS 574 AT LT WING 2023-689362<[01] REPLACED RAIL NUT PLATES LOCATED OFSS 574 AT LT WING IAW B737-700 SRM 51-40-02 AND TOOK MESURE OF CRACK; MEASURE IS L= 0.418' TOOL USED; DIGITAL CALIPER P/N:500-197-30; S/N:A21147761; DUE DATE: 12-MAR-2024.;[02] REPLACED RAIL NUT PLATES LOCATED OFSS 574 AT LT WING IAW B737-700 SRM 51-40-02 AND TOOK MESURE OF CRACK; MEASURE IS L= 0.418' TOOL USED; DIGITAL CALIPER P/N:500-197-30; S/N:A21147761; DUE DATE: 12-MAR-2024

More about the Boeing 737-7H4