NTSB Identification: DEN87FA111.
The docket is stored on NTSB microfiche number 33976.
Accident occurred Friday, April 24, 1987 in BOULDER, CO
Probable Cause Approval Date: 11/08/1988
Aircraft: TAYLORCRAFT F21 TC, registration: N2005C
Injuries: 2 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.

THE FLT INSTRUCTOR AND STUDENT PLT WERE PRACTICING NIGHT TOUCH AND GO LANDINGS. FLT INSTRUCTOR REDUCED ENGINE POWER TO IDLE AFTER TAKEOFF TO SIMULATE AN ENGINE FAILURE. HE BANKED THE ACFT 'STEEPLY' TO THE LEFT AT A LOW ALTITUDE. THE ACFT STRUCK THE GROUND IN A WINGS LEVEL, NOSE LOW ATTITUDE. EXAM OF ACFT WRECKAGE REVEALED NO EVIDENCE OF A PRE-IMPACT MACHANICAL MALFUNCTION OR FAILURE OF THE ACFT. BOTH OCCUPANTS RECEIVED SERIOUS INJURIES.

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

MANEUVER..IMPROPER..PILOT IN COMMAND(CFI)

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

AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND(CFI)

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

STALL..INADVERTENT..PILOT IN COMMAND(CFI)

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

EMERGENCY PROCEDURE..SIMULATED..PILOT IN COMMAND(CFI)

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