N735JB accident

NTSB GAA15CA189 · 2015-07-18 · Hanksville, UT · near U660

Docket — crew, injuries and powerplant

Summary

The pilot reported that during the takeoff roll, the airplane "bounced" off of the air strip, the left wing "suddenly rose," and that a wind gust pushed the nose to the right by "30 degrees." The right wing contacted a dirt mound, the airplane slid sideways, drifted off of the air strip to the right, and impacted  terrain in a ravine. The airplane sustained substantial damage to the right wing and to the fuselage. The pilot reported there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Full narrative

The pilot reported that during the takeoff roll, the airplane "bounced" off of the air strip, the left wing "suddenly rose," and that a wind gust pushed the nose to the right by "30 degrees." The right wing contacted a dirt mound, the airplane slid sideways, drifted off of the air strip to the right, and impacted terrain in a ravine. The airplane sustained substantial damage to the right wing and to the fuselage.

The pilot reported there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Probable cause

The pilot's failure to maintain directional control during the takeoff roll, which resulted in a runway excursion and a collision with terrain. The National Transportation Safety Board determined the probable cause of this accident.

Circumstances

Event type
Accident
Highest injury
None
Weather conditions
Visual Meteorological Cond
Light condition
Day
Sky condition
NONE
Ceiling (ft)
0
Visibility (sm)
10
Wind direction
150
Wind speed (kt)
9
Temperature (F)
86
Nearest airport
Hidden Splendor
Distance from field
0.0
Airport elevation
4821

Aircraft

RegistrationMakeModelDamageFAR part
N735JB — — SUBS 091

Sequence of events

#OccurrencePhase
1 Takeoff Loss of control on ground defining Takeoff
2 Takeoff Runway excursion Takeoff
3 Takeoff Collision with terr/obj (non-CFIT) Takeoff

Findings

Finding
Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained cause
Environmental issues-Physical environment-Object/animal/substance-Debris/dirt/foreign object-Contributed to outcome factor