Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
February 6, 2025
Submitted
February 27, 2025
Operation
Air carrier
Aircraft
N937WN
Make and model
Boeing 7377H4
Aircraft serial
36644
Aircraft time
51,274 hours, 31,273 cycles
Part
Stiffener
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 HAND HORIZONTAL STABILIZER #3 INSPAR RIB; AT STABILIZER STATION 111.10; 4TH VERTICAL STIFFENER IS CRACKED. <[01] REPAIRED RIGHT HAND HORIZONTAL STABILIZER #3 INSPAR RIB AT STABILIZER STATION 111.10 4TH VERTICAL STIFFENER IAW SRM 55-10-09-2R-4 REPAIR 4. FIGURE 202.; [02] VERIFIED CORRECTIVE ACTION 1.

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