N516PJ Hughes 369D accident

NTSB WPR14CA363 · 2014-09-02 · Willows, CA · near WLW

Docket — crew, injuries and powerplant

Summary

While in cruise flight an unsecured jacket departed the helicopter through an open window. The tail rotor drive shaft sheared as a result of the jacket's contact with the tail rotors. The pilot subsequently initiated a forced landing to an orchard where during landing, the main rotors struck and separated the tailboom. The pilot reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.

Full narrative

While in cruise flight an unsecured jacket departed the helicopter through an open window. The tail rotor drive shaft sheared as a result of the jacket's contact with the tail rotors. The pilot subsequently initiated a forced landing to an orchard where during landing, the main rotors struck and separated the tailboom. The pilot reported no preimpact mechanical malfunctions or failures with the helicopter that would have precluded normal operation.

Probable cause

The pilot's failure to adequately secure cargo (a jacket), which resulted in the jacket exiting the cabin compartment and colliding with the tail rotor during cruise flight. The National Transportation Safety Board determined the probable cause of this accident.

Circumstances

Event type
Accident
Highest injury
Serious
Weather conditions
Visual Meteorological Cond
Light condition
Day
Sky condition
NONE
Ceiling (ft)
0
Visibility (sm)
10
Wind direction
180
Wind speed (kt)
10
Temperature (F)
91
Nearest airport
WILLOWS-GLENN COUNTY
Distance from field
2.0
Airport elevation
141

Aircraft

RegistrationMakeModelDamageFAR part
N516PJ HUGHES 369D SUBS 091

Sequence of events

#OccurrencePhase
1 Enroute Miscellaneous/other defining Climb
2 Enroute Loss of control in flight Climb

Findings

Finding
Aircraft-Aircraft handling/service-Loading-(general)-Incorrect use/operation cause
Personnel issues-Action/decision-Action-Incomplete action-Pilot cause
Environmental issues-Physical environment-Object/animal/substance-Tree(s)-Contributed to outcome factor
Environmental issues-Physical environment-Object/animal/substance-Debris/dirt/foreign object-Effect on equipment cause