SDR SWAA2026063005364

Service difficulty report · Rib · Boeing 7377H4

Difficulty date: May 21, 2026
Submitted: July 1, 2026
Operation: Air carrier
Aircraft: N929WN
Make and model: Boeing 7377H4
Aircraft serial: 36631
Aircraft time: 58,054 hours, 35,506 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
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 REMOVABLE LEADING-EDGE 2ND FROM INBD RIB CRACKED. REMOVED, LOCATED, AND DRILLED. REPLACED NEW RT HORIZONTAL STAB REMOVABLE LEADING-EDGE 2ND FROM INBD RIB IAW SRM 51-40-02-0G-0, 51-40-05-0G-0, AND DWG 186A1001, REV B.

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