Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
June 15, 2020
Submitted
July 7, 2020
Operation
Air carrier
Aircraft
N480WN
Make and model
Boeing 7377H4
Aircraft serial
33998
Aircraft time
55,251 hours, 32,519 cycles
Part
Stiffener
Condition
Cracked
Location
R/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

RIGHT HORIZONTAL STAB RIB AT HSS 92.70, SECOND VERTICAL STIFFENER WAS CRACKED. REPAIRED THE STIFFENER IAW SRM 55-10-09-2R4, SRM 51-40-02-OG-0, DRAWINGS 182A1500, 182A3001, AND 002A0001.

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