Casualties unknown

1984-06-10: Maule M-5 (N347X) — Palmer, AK

Palmer, AK, US

On June 10, 1984, a Maule M-5 (registration N347X) was involved in an aviation accident near Palmer, AK. Investigators recorded the probable cause as: The pilot's decision to take off with an overloaded aircraft and aft center of gravity, which resulted in insufficient airspeed to clear obstacles and a subsequent stall during a reversal maneuver. 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 attempting a water takeoff with an overloaded aircraft failed to gain enough speed to clear trees, stalled during a reversal maneuver, and struck the treeline at the water's edge.

What happened

The pilot initiated his first water takeoff of the season in a seaplane. The operation was conducted under challenging conditions, as the aircraft was loaded beyond its maximum gross weight limit with a center of gravity positioned too far aft. This configuration significantly degraded the aircraft's performance capabilities during the critical takeoff phase.

As the aircraft accelerated along the water surface, it failed to attain sufficient airspeed to clear the tall trees bordering the navigable waterway. Recognizing the inability to safely clear the obstacle ahead, the pilot attempted a turnaround maneuver to land in the opposite direction. During this turn, the aircraft entered a stall condition. Although the pilot managed to recover from the stall, the low altitude and proximity to the shoreline left insufficient margin for error.

The aircraft subsequently collided with trees at the water's edge, resulting in a hard impact. The collision caused substantial damage to the airframe, though specific details regarding injuries or fatalities are not provided in this brief narrative excerpt.

The investigation

Examination of the flight dynamics revealed that the primary issue was performance-related. The overloaded condition and aft center of gravity prevented the aircraft from achieving the necessary lift and speed required for a safe departure over obstacles.

Findings

The accident sequence was driven by several critical factors:

  • Overloaded aircraft: The gross weight exceeded operational limits, reducing climb performance.
  • Aft center of gravity: This configuration further degraded stability and control responsiveness during takeoff.
  • Insufficient airspeed: The pilot could not clear the treeline due to poor acceleration.
  • Stall in a turn: The reversal maneuver induced an aerodynamic stall at low altitude.
  • Tree impact: The final collision occurred at the water's edge after the failed landing attempt.

Probable cause

The pilot's decision to take off with an overloaded aircraft and aft center of gravity, which resulted in insufficient airspeed to clear obstacles and a subsequent stall during a reversal maneuver.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X39785. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.