NTSB Identification: NYC93FA013.
The docket is stored on NTSB microfiche number 50016.
Accident occurred Saturday, October 10, 1992 in SHENANDOAH, PA
Probable Cause Approval Date: 01/04/1994
Aircraft: CESSNA 195, registration: N4308V
Injuries: 1 Fatal.
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.
RADAR DATA SHOWED THE AIRPLANE IN A CLIMB TO 7800 FT, LEVEL AT 7700 FT FOR APPROX 1 MINUTE, AND THEN ENTER A DESCENT. THE RADAR DATA WAS PUT INTO A COMPUTER PROGRAM WHICH SHOWED THAT THE HIGHEST VERTICAL SPEED RECORDED WAS 19,000 FPM, WITH A TAS OF 279.9 KTS (321.9 MPH). EVIDENCE OF FLUTTER WAS FOUND ON THE ELEVATOR, WHICH SEPARATED FROM THE HORIZONTAL STABILIZERS, AND THE WINGS HAD FAILED SYMMETRICALLY IN NEGATIVE LOADING. THE PILOT HAD BEEN TAKING VASOTEC FOR HYPERTENSION. DATA SUPPLIED FROM FLIGHT TESTING FOUND THAT IF THE AIRPLANE WAS TRIMMED FOR A CLIMB AT 112 MPH, AND THE POWER WAS NOT CHANGED, A 13 POUND FORWARD FORCE ON THE CONTROL WHEEL WOULD CAUSE THE AIRPLANE TO ACCELERATE TO 196 MPH. THE NEVER EXCEED SPEED FOR THE AIRPLANE IS 200 MPH.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: A LOSS OF CONTROL DUE TO PILOT INCAPACITATION.
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