Beech 76 nose gear collapsed on takeoff roll causing aircraft to drop on runway damaging both propel...

Attributes
ACN	545469
Time
Date	200204
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : crg.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Duchess 76
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff
Flight Plan	VFR
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : multi engine pilot : cfi pilot : commercial
Experience	flight time last 90 days : 225 flight time total : 700 flight time type : 35
ASRS Report	545469
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact none taken : insufficient time
Consequence	faa : investigated faa : reviewed incident with flight crew other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Performed a full stop landing and taxi back for departure at craig field, fl. Had 3 green lights on takeoff check. At approximately 45-50 KTS on takeoff roll, nose gear collapsed and aircraft skidded to stop damaging both propellers and nose cone. Originally it was assumed that landing gear handle was inadvertently placed in the 'up' position, and gear began retraction during the takeoff roll. Gear handle was found in 'down' position the following day, with no one being able to explain how it got in the down position. Further investigation, which included a gear swing, found excessive wear in the nose gear, causing the gear to easily move past the over-center, making it possible that a bump may have folded the gear forward. FAA investigation concluded that mechanical defect was the cause of this incident.

Original NASA ASRS Text

Title: BEECH 76 NOSE GEAR COLLAPSED ON TKOF ROLL CAUSING ACFT TO DROP ON RWY DAMAGING BOTH PROPS AND NOSE CONE.

Narrative: PERFORMED A FULL STOP LNDG AND TAXI BACK FOR DEP AT CRAIG FIELD, FL. HAD 3 GREEN LIGHTS ON TKOF CHK. AT APPROX 45-50 KTS ON TKOF ROLL, NOSE GEAR COLLAPSED AND ACFT SKIDDED TO STOP DAMAGING BOTH PROPS AND NOSE CONE. ORIGINALLY IT WAS ASSUMED THAT LNDG GEAR HANDLE WAS INADVERTENTLY PLACED IN THE 'UP' POS, AND GEAR BEGAN RETRACTION DURING THE TKOF ROLL. GEAR HANDLE WAS FOUND IN 'DOWN' POS THE FOLLOWING DAY, WITH NO ONE BEING ABLE TO EXPLAIN HOW IT GOT IN THE DOWN POS. FURTHER INVESTIGATION, WHICH INCLUDED A GEAR SWING, FOUND EXCESSIVE WEAR IN THE NOSE GEAR, CAUSING THE GEAR TO EASILY MOVE PAST THE OVER-CTR, MAKING IT POSSIBLE THAT A BUMP MAY HAVE FOLDED THE GEAR FORWARD. FAA INVESTIGATION CONCLUDED THAT MECHANICAL DEFECT WAS THE CAUSE OF THIS INCIDENT.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Beech 76 nose gear collapsed on takeoff roll causing aircraft to drop on runway damaging both propellers and nose cone.