Gust lock

External-only gust locks typically lack this safety feature, and must be tagged with a large red remove before flight streamer.

The first Boeing B-17 Flying Fortress ever built, the initial Model 299 aircraft, was lost in just this way on October 30, 1935, when its gust locks were left engaged, with the resulting crash killing Boeing chief test pilot Leslie Tower and United States Army Air Corps test pilot Ployer Peter Hill.

On December 5, 1978, Douglas C-53 N25656 of Caribe Air Sales crashed shortly after take-off from Sebring Regional Airport and was destroyed by fire.

On August 27, 1992, at Gimli Industrial Park Airport, a modified version of the DHC-4 Caribou crashed due to a design flaw which permitted the gust-locks to engage during take-off.

[3][4] On May 31, 2014, a gust lock left in place caused the crash of a Gulfstream IV at Hanscom Field, killing Philadelphia Inquirer co-owner Lewis Katz as well as six others.

Gust lock on a rudder.
The prototype of the B-17 crashed on October 30, 1935