Service difficulty report · Rib · Boeing 7377H4

Difficulty date
December 3, 2025
Submitted
December 29, 2025
Operation
Air carrier
Aircraft
N943WN
Make and model
Boeing 7377H4
Aircraft serial
36913
Aircraft time
51,234 hours, 31,377 cycles
Part
Rib
Condition
Cracked
Location
Zone 300
Stage of operation
IN
How discovered
V
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 INSPAR RIB, AT HSS 111.10, RIB3, 3RD VERTICAL STIFFENER IS CRACKED. REPAIRED THE RT HORIZONTAL STAB INSPAR RIB 3 HSS 111.10, STIFFENER 3 IAW SRM 55-10-09-2R-4.

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