SDR SWAA2026090303631

Service difficulty report · Rib · Boeing 7377H4

Difficulty date: August 10, 2026
Submitted: September 4, 2026
Operation: Air carrier
Aircraft: N954WN
Make and model: Boeing 7377H4
Aircraft serial: 36669
Aircraft time: 49,599 hours, 30,445 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Rib
Condition: No Discrepancy
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

CRACKED RIB, LE STA 254.02, ACCESS 331B ON HORIZONTAL STAB. REMOVED PRIMER UPPER FASTENER ADJACENT AREA RIB IAW AMM 51-21-11-150-801 AND PERFORMED DETAIL INSPECTION ON RIB ASSY ALONG RIB AND ADJACENT AREA AND NO CRACK FOUND IAW SRM 51-00-06-0G-0.

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