A C421C on takeoff roll had the nose gear collapse with propellers striking the runway incurring dam...

Attributes
ACN	476959
Time
Date	200006
Day	Sun
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : i90.tracon
Operator	common carrier : air taxi
Make Model Name	Golden Eagle 421
Operating Under FAR Part	Part 135
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : multi engine pilot : atp
Experience	flight time last 90 days : 100 flight time total : 3900 flight time type : 400
ASRS Report	476959
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical ground encounters other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : returned to intended or assigned course
Consequence	other other other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

I started flight on jun/xa/00 and heard warning horn which I took to be stall warning horn. I shut down the engines and inspected stall switch and gear (3 green and no gear unsafe conditions) and hydraulic fluid. Crew member advised me that this had happened earlier and discontinued once airborne. I restarted engines. On takeoff at vr, nosewheel collapsed and I struck both propellers on runway before becoming airborne. I elected to proceed from ZZZ to XXX. Lost communication (piece of propeller severed wires in fuselage). Made straight-in to runway 19R, shut down engines. Unloaded. Towed aircraft to parking. Maintenance personnel cannot, as of second day after the incident, duplicate the problem. Callback conversation with reporter revealed the following information: the reporter stated no positive cause of the nose gear collapse has been determined. The reporter said the nose gear actuator was removed and sent to the manufacturer for teardown and no fault was found. The reporter stated the airplane has not flown since the incident as the engines are being disassembled and won't be ready for some time. The reporter said the FAA has classified the event as an incident.

Original NASA ASRS Text

Title: A C421C ON TKOF ROLL HAD THE NOSE GEAR COLLAPSE WITH PROPS STRIKING THE RWY INCURRING DAMAGE TO THE ACFT.

Narrative: I STARTED FLT ON JUN/XA/00 AND HEARD WARNING HORN WHICH I TOOK TO BE STALL WARNING HORN. I SHUT DOWN THE ENGS AND INSPECTED STALL SWITCH AND GEAR (3 GREEN AND NO GEAR UNSAFE CONDITIONS) AND HYD FLUID. CREW MEMBER ADVISED ME THAT THIS HAD HAPPENED EARLIER AND DISCONTINUED ONCE AIRBORNE. I RESTARTED ENGS. ON TKOF AT VR, NOSEWHEEL COLLAPSED AND I STRUCK BOTH PROPS ON RWY BEFORE BECOMING AIRBORNE. I ELECTED TO PROCEED FROM ZZZ TO XXX. LOST COM (PIECE OF PROP SEVERED WIRES IN FUSELAGE). MADE STRAIGHT-IN TO RWY 19R, SHUT DOWN ENGS. UNLOADED. TOWED ACFT TO PARKING. MAINT PERSONNEL CANNOT, AS OF SECOND DAY AFTER THE INCIDENT, DUPLICATE THE PROB. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED NO POSITIVE CAUSE OF THE NOSE GEAR COLLAPSE HAS BEEN DETERMINED. THE RPTR SAID THE NOSE GEAR ACTUATOR WAS REMOVED AND SENT TO THE MANUFACTURER FOR TEARDOWN AND NO FAULT WAS FOUND. THE RPTR STATED THE AIRPLANE HAS NOT FLOWN SINCE THE INCIDENT AS THE ENGS ARE BEING DISASSEMBLED AND WON'T BE READY FOR SOME TIME. THE RPTR SAID THE FAA HAS CLASSIFIED THE EVENT AS AN 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.

A C421C on takeoff roll had the nose gear collapse with propellers striking the runway incurring damage to the aircraft.