SDR SWAA2025121035632

Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date: November 15, 2025
Submitted: December 10, 2025
Operation: Air carrier
Aircraft: N914WN
Make and model: Boeing 7377H4
Aircraft serial: 36622
Aircraft time: 57,369 hours, 34,854 cycles
System (JASC): 5514 · Horizontal Stabilizer Miscellaneous Structure
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

CRACK ON STIFFENER LOCATED ON STAB STA 129.50 AT FRONT SPAR RT HORIZONTAL STABILIZER. REPLACED STIFFENER ON STAB STA 129.50 AT FRONT SPAR RT HORIZONTAL STABILIZER IAW SRM 51-40-02-0G-0, SRM 51-10-02-0G-0, ITEM 9, AND DWG 182A5305, SHEET 1, REV C.

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