No fatalities

25 Nov 2019: Aeronca 11AC No Series — San Diego, CA

San Diego, CA, United States

On 25 Nov 2019, an Aeronca 11AC No Series was involved in an aviation accident near San Diego, CA. No fatalities were reported. Investigators recorded the probable cause as: The pilot reported that a quartering tailwind led to the loss of directional control during a wheel landing. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A pilot reported that a quartering tailwind during a wheel landing caused the airplane to drift left, striking a runway sign and ground looping, resulting in substantial damage to the aft fuselage.

Incident Overview

A pilot reported that while landing a tailwheel-equipped airplane, a quartering tailwind necessitated a wheel landing. Shortly after touchdown, the aircraft was pushed toward the left side of the runway. The pilot applied full right rudder and added power in an attempt to realign the airplane with the runway centerline, but these actions were unsuccessful. The airplane subsequently struck a sign located along the edge of the runway and ground looped, resulting in substantial damage to the aft fuselage.

Pilot Report

The pilot stated that there were no mechanical failures or malfunctions that would have precluded normal operation. The maneuver was a wheel landing, which is a technique often used in tailwheel aircraft to manage crosswind or tailwind conditions. Despite corrective inputs, the aircraft's drift to the left could not be arrested, leading to the collision with the sign and the subsequent ground loop.

Damage Evaluation

The accident caused substantial damage to the aft fuselage. No other damage items were reported. The aircraft was a tailwheel type, but the specific make and model were not disclosed in the report.

Investigation Findings

The investigation confirmed the pilot's account of the event. The quartering tailwind was identified as the primary environmental factor contributing to the loss of directional control during the landing roll. No further causal factors were determined.

Probable cause

The pilot reported that a quartering tailwind led to the loss of directional control during a wheel landing.

Contributing factors

Directional control — Not attained/maintainedPilotEffect on operation