SDR SWAA2026090382175

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): 5100 · Standard Practices/Structures
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 HSS 281.91 ON ACCESS PANEL 331B, ON HORIZONTAL STAB. REMOVED PRIMER, UPPER FASTENER ADJACENT AREA, ACCESS PANEL 331B AT HORIZONTAL STABI IAW AMM 51-21-11-150-801, & PERFORMED DETAIL INSPECTION OF RIB ASSY AND ADJACENT AREA AND DID NOT FIND A CRACK IAW SRM 51-00-06-0G-0,

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