Service difficulty report · Skin · Beech 76

Difficulty date
January 18, 2010
Submitted
March 1, 2010
Operation
General aviation
Make and model
Beech 76
Aircraft time
8,162 hours
Engine
Lyc LO360A1G6
Propeller
Hartzl HCM2YR
Part
Skin
Condition
Damaged
Location
Lt Wing
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

(CAN) DURING A PREFLIGHT INSP, A PORTION OF SKIN WAS FOUND TORN FWD OF THE LT REAR SPAR, ON A SECTION OF SKIN THAT FORMS PART OF THE FAIRING THAT COVERS THE AFT PORTION OF THE LANDING GEAR WELL. THERE IS A PREVIOUS REPAIR ON THE RT SIDE OF THIS SAME ACFT. THE SKIN IN THIS AREA IS WHERE THE LANDING GEAR DOOR CONTACTS WHEN THE GEAR IS UP, IT IS ALSO WHERE THE WHEEL WELL CLOSE-OUT PANELS MOUNT TO ON THE AFT SIDE. THE ALUMINUM ANGLE THAT SUPPORTS THIS SKIN IS CUT OUT TO ALLOW CLEARANCE FOR THE LANDING GEAR DRAG BRACE. THE ANGLE WAS FOUND BROKEN AT THE CUTOUT AREA, WHICH IS LIKELY WHAT CAUSED THE SKIN TO FLEX WITH AIRLOADS AND EVENTUALLY BREAK. THE WHEEL WELL CLOSE OUT PANEL PROVIDES SUPPORT FOR THE MOST FWD AND INBD PORTION OF THIS SKIN, AND THE PANEL WAS FOUND TO BE TORN WHERE IT MOUNTED TO THE SKIN.

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