Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
April 6, 2023
Submitted
April 10, 2023
Operation
Air carrier
Aircraft
N494WN
Make and model
Boeing 7377H4
Aircraft serial
33868
Aircraft time
61,343 hours, 36,675 cycles
Part
Stringer
Condition
Cracked
Location
Zn 100 Fus Lower
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

CRACKS IN STRINGER S16L WHILE PERFORMING INSPECTION OF STRINGER S16L FOUND TWO CRACKS. ONE ABOVE THE DAMAGE ON THE TOP SIDE OF THE STRINGER AND ONE ON THE OUTB'D FACE OF THE STRINGER ALSO IN THE DAMAGED AREA. BOTH CRACKS ARE APPROX. .75' IN LENGTH.<[01] STOP DRILLED CRACKS IN STRINGER 16L IAW EA 23-153-01117 AND SRM 51-10-02.;[02] C/W 23-153-01117-WIP3

More about the Boeing 737-7H4