No fatalities

Inadvertent Landing Gear Retraction Leads to Damage After Landing

Glendale, AZ, United States

On March 17, 2014, a GRUMMAN TMB-3E operated by American Airpower Heritage Flying Museum was involved in an aviation accident near Glendale, AZ. No fatalities were reported. Investigators recorded the probable cause as: The pilot inadvertently raised the landing gear lever instead of the flap lever after landing. This summary draws on records from NTSB; 2 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

A pilot mistakenly raised the landing gear lever instead of the flap lever while turning onto a taxiway, causing the left gear to collapse and the wing tip to strike the ground, resulting in substantial damage.

Incident Details

After landing, the pilot turned the aircraft onto a taxiway intersection. During this maneuver, the pilot intended to raise the flaps but inadvertently moved the landing gear lever instead of the adjacent flap lever. This action caused the left landing gear to collapse, leading the left wing tip to strike the ground. The impact resulted in substantial damage to the left wing.

Pilot's Actions

The pilot reported that the error occurred because he confused the landing gear lever with the flap lever. He stated that the accident could have been prevented if he had waited until the aircraft was clear of the runway, stopped, and properly identified the flap switch before actuating any controls.

Mechanical Condition

The pilot confirmed that there were no preimpact mechanical malfunctions or failures with the aircraft that would have precluded normal operation.

Probable cause

The pilot inadvertently raised the landing gear lever instead of the flap lever after landing.

Contributing factors

PilotIncorrect use/operation

Frequently asked questions

What happened in the 17 Mar 2014 GRUMMAN TMB-3E accident near Glendale, AZ?

A pilot mistakenly raised the landing gear lever instead of the flap lever while turning onto a taxiway, causing the left gear to collapse and the wing tip to strike the ground, resulting in substantial damage.

Were there any fatalities in the 17 Mar 2014 GRUMMAN TMB-3E accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 17 Mar 2014 involved a GRUMMAN TMB-3E, operated by American Airpower Heritage Flying Museum, at Glendale, AZ.

What was the probable cause of the accident?

The pilot inadvertently raised the landing gear lever instead of the flap lever after landing.