SDR 98ZZZX1669

Service difficulty report · Bolt · Cessna 172N

Difficulty date
March 19, 1998
Submitted
March 26, 2000
Operation
General aviation
Filed by
VT3R931L
Gibbs Service Center Inc
Aircraft
N6360D
Make and model
Cessna 172N
Aircraft serial
17272746
Part
Bolt
Part number
S21381
Condition
Failed
Location
Lt Mlg Mount
Part time
9,401 hours
Stage of operation
LD
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING ROLL-OUT, PILOT LOST DIRECTIONAL CONTROL AND AIRCRAFT VEERED OFF RUNWAY INTO THE DIRT. AFTER CONTACTING UNEVEN TERRAIN, THE LT MLG STRUT COLLAPSED AFT CAUSING DAMAGE TO LT MLG FAIRINGS, FUSELAGE, AND LT STABILIZER/ELEVATORS. INSPECTION SHOWED THE P/N S2138-1 BOLT HAD BROKEN INSIDE STRUT ALLOWING STRUT TO ROTATE AFT. METALLURGICAL ANALYSIS DETERMINED THE BOLT WAS PREVIOUSLY CRACKED. SUBMITTER RECOMMENDED A SAFE LIFE LIMIT BE ESTABLISHED.

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