Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
April 30, 2020
Submitted
May 4, 2022
Operation
Air carrier
Aircraft
N939WN
Make and model
Boeing 7377H4
Aircraft serial
36646
Aircraft time
37,705 hours, 22,596 cycles
Part
Stiffener
Condition
Cracked
Location
L/H Horiz. Stab.
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

SUPPLEMENTAL INFORMATION: L/H STABILIZER RIB AT STA 120.33 3RD VERTICAL STIFFENER IS CRACKED / REMOVED DAMAGED AND REPAIRED LH STABILIZER RIB AT STA 120.33; 3RD VERTICAL STIFFENER - CATEGOARY A REPAIR INSTALLED PER SRM 55-10-09-2R-4 REPAIR 4.

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