Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date
April 3, 2025
Submitted
April 29, 2025
Operation
Air carrier
Aircraft
N938WN
Make and model
Boeing 7377H4
Aircraft serial
36645
Aircraft time
51,442 hours, 31,525 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

LH HORIZONTAL STABILIZER INSPAR RIB; AT STABILIZER STATION 111.10; 3RD VERTICAL STIFFENER IS CRACKED.<[01] REPAIRED LH STAB INSPAR RIB 3RD VERTICAL STIFFENER AT STAB STA 111.10 IAW SRM 55-10-09-2R-4.;[02] VERIFIED RII ITEMS COMPLETE;[03] VERIFIED TASK COMPLETE

More about the Boeing 737-7H4