SDR SWAA2021101922254

Service difficulty report · None · Boeing 7377H4

Difficulty date: September 23, 2021
Submitted: October 19, 2021
Operation: Air carrier
Aircraft: N227WN
Make and model: Boeing 7377H4
Aircraft serial: 34450
Aircraft time: 53,921 hours, 32,067 cycles
System (JASC): 5531 · Vertical Stabilizer, Spar/Rib
Part: None
Condition: Corroded
Location: Vert. 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

CORROSION REAR SPAR LT DRAG BRACE FITTING AT AFT INBD POSITION OF VERTICAL STABILIZER, REMOVED REAR SPAR LH DRAG BRACE FITTING IAW SRM 51-40-02. PERFORMED A VISUAL INSPECTION OF AREA AND NO FOUND DAMAGE. DRILLED A NEW REAR SPAR LT DRAG BRACE FITTING IAW SRM 51-40-05, AND DRAWING 148A8200, SHEET 4, REV -. INSTALLED REAR SPAR LH DRAG BRACE FITTING IAW DWG 148A8200 REV -, AND SRM 51-40-02.

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