N403DW

On March 25, 1994, about 1033 eastern standard time, a Grob G109B, motor-glider, piloted by Barry Meeker, was substantially damaged during a practice forced landing to Boire Field, Nashua, New Hampshire. The certified flight instructor (CFI) received minor injuries and the rated student pilot (RSP) was uninjured. Visual meteorological conditions prevailed. A flight plan had not been filed for the flight operating under 14 CFR 91.

In the NTSB Form 6120.1/2, the CFI stated that the flight was to simulate an engine loss on takeoff. After the takeoff, at about 525 feet, the power was reduced to idle and a 30 degree bank to the right was initiated by the RSP.

The CFI further stated:

"...120 degrees of turn was completed when the student and instructor looked over their shoulders at the runway, at this time [the] glider quickly increased bank to 60 to 70 degrees, power was added and the wings were leveled, but too much altitude was lost and the glider would not clear the trees on the east side of Nashua's runway. The glider lost speed in the treetops and entered a spin, hitting nose first next to the runway."

The Federal Aviation Administration (FAA) Inspector's report stated that during an interview, the CFI stated after 120 degrees of turn, when the right wing dropped, the CFI took the controls, added power and leveled the wings.

The report further stated that there were three Air Traffic Controllers on duty in the Nashua Control Tower at the time of the accident. The controllers told the Inspector that the pilot had requested a simulated "rope break" and he would start his turn at 500 feet. After the motor-glider departed runway 32, the controllers observed the glider in a right turn off the departure end of the runway and it "looked low." They observed the aircraft clip the trees and impact the ground.