Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
March 7, 2018
Submitted
March 12, 2018
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
47,083 hours, 27,507 cycles
Part
Stiffener
Part number
186A1401
Condition
Cracked
Location
Horizontal 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

LEFT HORIZONTAL STAB RIB, HSS 129.5, 4TH STIFFENER FROM FORWARD SPAR CRACKED. REPAIRED THE STIFFENER IAW SRM.

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