On September 1, 1993, a Bellanca 7GCBC (registration N10987) operated by Bernhard, John P. was involved in an aviation accident near Delta River, AK. Investigators recorded the probable cause as: The pilot's failure to maintain directional control during takeoff due to excessive aircraft weight and insufficient runway length at an unprepared site. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A pilot attempted takeoff from a short, unprepared site in an overloaded aircraft. The plane became airborne but turned right, striking an embankment before stopping in the vegetation.
What happened
The pilot was operating an aircraft at an unprepared remote airstrip that measured approximately 600 feet in length. During the takeoff roll, the airplane achieved lift-off but immediately began to turn to the right. The pilot attempted to correct the yaw but was unable to regain sufficient control authority before the aircraft impacted a nearby embankment. The flight ended with the airplane coming to a stop among the surrounding bushes and vegetation.
The investigation
Post-accident examination revealed that the aircraft was loaded close to its maximum gross weight limit at the time of departure. This excessive weight likely contributed to the reduced performance and control responsiveness required to counteract the right turn during the critical takeoff phase.
Findings
Contributing factors included the short length of the unprepared site, the aircraft being near its maximum gross weight, and the pilot's inability to correct the directional control loss after becoming airborne. The combination of these elements resulted in the runway overrun and subsequent impact with terrain.
Probable cause
The pilot's failure to maintain directional control during takeoff due to excessive aircraft weight and insufficient runway length at an unprepared site.