NTSB Identification: LAX83FVM03
14 CFR Part 91: General Aviation
Accident occurred Wednesday, September 01, 1982 in PALO ALTO, CA
Probable Cause Approval Date: 09/01/1983
Aircraft: FALKENTHAL VARIEZE, registration: N78EV
Injuries: 1 Serious.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

DURING FINAL APPROACH THE ACFT SUDDENLY PITCHED DOWN ABOUT 45 DEG & CRASHED INTO A DUCK POND CONTAINING APPROXIMATELY 4-5 FT OF WATER. DURING EXAMINATION OF THE WRECKAGE IT WAS NOTED A BOLT WAS MISSING THAT SECURES THE ELEVATOR CONTROL STICK, AT THE BELLCRANK, TO THE PUSH-PULL ROD THAT EXTENDS TO & OPERATES THE ELEVATORS ATTACHED TO THE CANARD. THE PLT STATED THAT PRIOR TO THIS FLT HE HAD PUT IN A NEW INSTRUMENT PANEL DURING WHICH THE CANARD HAD BEEN REMOVED. HE COULD NOT REMEMBER TORQUING THE NUT ATTACHING THE ELEVATOR PUSH-PULL ROD TO THE BELLCRANK WHEN HE REINSTALLED THE CANARD.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLT CONTROL SYST,ELEVATOR CONTROL..UNDERTORQUED

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLT CONTROL SYST,ELEVATOR CONTROL..DISCONNECTED

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLT CONTROL SYST,ELEVATOR CONTROL..DISABLED

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MAINTENANCE,INSTALLATION..IMPROPER..PILOT IN COMMAND

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