Casualties unknown

1994-04-23: Piper J3C-65 (N70277) — Gillis, Alan A. — Snohomish, WA

Snohomish, WA, US

On April 23, 1994, a Piper J3C-65 (registration N70277) operated by Gillis, Alan A. was involved in an aviation accident near Snohomish, WA. Investigators recorded the probable cause as: The pilot's failure to maintain sufficient altitude during the go-around from a simulated engine-out landing, resulting in the aircraft striking the ground. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A pilot practicing a simulated engine-out landing to an open field advanced the throttle just before touchdown, causing the aircraft to sink into tall grass without mechanical issues.

What happened

The pilot was conducting a training maneuver involving a simulated engine failure during the final approach phase. The objective was to execute a forced landing in an open field. As the aircraft approached the ground, the pilot initiated a go-around procedure by quickly advancing the throttle controls. However, the engine did not respond immediately and hesitated before power could be fully restored. Consequently, the aircraft descended rapidly and impacted the surface of the field, which was covered with tall grass.

The investigation

Following the incident, an assessment of the aircraft systems was conducted to determine the root cause of the engine hesitation. The pilot reported that there were no mechanical failures or malfunctions with the airplane at the time of the accident. This indicates that the issue was likely related to power application timing or engine response rather than a systemic failure.

Findings

The primary factor in this incident was the engine hesitation during the critical phase of recovering from a simulated forced landing. The pilot's decision to advance the throttle just prior to touchdown resulted in insufficient altitude to clear the terrain. The presence of tall grass on the landing area further complicated the outcome, though no structural damage or injury is specified in the report.

Safety message

Pilots practicing simulated engine failures should ensure adequate altitude is maintained before attempting a power recovery. Advancing the throttle too late in the descent profile can lead to ground contact even if the engine is fully functional.

Probable cause

The pilot's failure to maintain sufficient altitude during the go-around from a simulated engine-out landing, resulting in the aircraft striking the ground.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001206X01184. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.