SDR SWAA2025103018375

Service difficulty report · Skin · Boeing 7377H4

Difficulty date: September 25, 2025
Submitted: October 30, 2025
Operation: Air carrier
Aircraft: N907WN
Make and model: Boeing 7377H4
Aircraft serial: 36619
Aircraft time: 57,081 hours, 33,302 cycles
System (JASC): 5512 · Horizontal Stabilizer, Plate/Skin
Part: Skin
Condition: Cracked
Location: Zn 300 Stabilize
Stage of operation: IN
How discovered: E
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

CRACK FOUND ON RT HORIZONTAL STABILIZER LOWER IN-SPAR SKIN AT HSS 193.90, RIB 17.5 INCHES FROM FRONT SPAR. INBD SIDE OF RIB LENGTH APPROX= 1.130 INCHES. PERFORMED REPAIR ON RT HORIZONTAL STABILIZER LOWER IN-SPAR SKIN IAW SRM 55-10-01-2R-11, REPAIR 11.

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