Robinson R22 N7535Z

Summary

On 28 January 2005 at about 23:30 local time, a Robinson R22 registered N7535Z was involved in an accident near Chandler, Arizona, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

28 January 2005 at 23:30

Classification

Accident

Location

Chandler, Arizona, United States

Nearest airport

Chandler Municipal Airport (CHD)

Coordinates

33.2692, -111.8111

Aircraft

Robinson R22

Registration

N7535Z

Category

Helicopter

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Route

Chandler → Chandler

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

LAX05CA078

Nobody was injured.

the certified flight instructor's inadequate use of the antitorque control pedals while adding throttle, which led to a loss of directional control.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The helicopter collided with terrain following a loss of antitorque control during a practice slope landing. On the third or fourth practice landing, the helicopter's skids were positioned so that the rear portions angled downwards toward lower terrain. As the student pilot configured the flight controls to remove the load off the rotor blades, the tail of the helicopter began to tip backwards. The CFI took control of the helicopter and added power to prevent the tail rotor from striking terrain. The helicopter responded by rotating to the right about the vertical axis. The CFI attempted to maintain level flight and counteract the spin by applying antitorque pedal input, but was unable to maintain control of the helicopter. After four or five revolutions to the right, the helicopter's right front section impacted terrain

Quoted verbatim from the NTSB record.