SDR SWAA2022111462088

Service difficulty report · Rib · Boeing 7377H4

Difficulty date: October 19, 2022
Submitted: November 14, 2022
Operation: Air carrier
Aircraft: N403WN
Make and model: Boeing 7377H4
Aircraft serial: 29815
Aircraft time: 72,717 hours, 43,173 cycles
System (JASC): 5511 · Horizontal Stabilizer, Spar/Rib
Part: Rib
Condition: Cracked
Location: Horizontal Stab
Stage of operation: IN
How discovered: 9
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 STABILIZER LEADING EDGE RIB 4 CRACKED. REMOVED NR 4 RIB AT R/H HORIZONTAL STAB L/E IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED NEW RIB #4 IAW SRM 51-40-05-0G-0. REMOVED, LOCATED, AND DRILLED NEW RIB. INSTALLED RIB 4 IAW SRM 51-40-02-0G-0.

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