- Date
- December 13, 2011, 16:20 local (23:20 UTC)
- Place
- Rock Springs, WY
- Injuries
- 5 minor
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N8067ZBell 407
- Defining event
- Maneuvering-low-alt flying: Loss of control in flight
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 12, 2013
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20111213028699A
- Case key
- 82512
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The unauthorized operation of the helicopter by a non-certificated and unqualified individual who failed to maintain helicopter control.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The individual flying the helicopter neither held a pilot certificate nor had any documented experience flying helicopters. He was employed by the operator as a company mechanic. He took the helicopter without permission and was giving 4 acquaintances a ride in the area. While maneuvering at low altitude near one of the passenger’s homes, the helicopter entered an uncontrolled descent and collided with the ground.
Factual narrative
On December 13, 2011, about 1620 mountain standard time, a Bell 407, N8067Z, was maneuvering at a low altitude and airspeed near the residence of some of the passengers when it descended into an open field about 12 miles west-northwest of the Rock Springs-Sweetwater County Airport, Rock Springs, Wyoming. The helicopter impacted the ground hard and was substantially damaged. The helicopter’s landing gear skids and lower cabin structure were deformed, and the tail boom was severed. Guardian Flight, South Jordan, Utah, owned and operated the helicopter. The pilot and four passengers sustained minor injuries. The flight was performed under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed, and no flight plan was filed. The flight began from Rock Springs about 1600. The passengers reported that the pilot, who was an employee of Guardian Flight, immediately departed the scene. The pilot has not reported the accident to the National Transportation Safety Board. Guardian Flight management personnel reported that the pilot was not authorized to fly the helicopter, and he was employed as their Rock Springs helicopter mechanic. Law enforcement authorities reported they apprehended the pilot in another state. Federal Aviation Administration personnel reported that the pilot was issued a student pilot certificate in 1988, and they have no record of him holding any additional pilot certificate. He does hold a mechanic certificate with airframe and powerplant ratings and inspection authorization. An acquaintance of the accident pilot reported that he observed the pilot flying N8067Z on several previous occasions for personal reasons. Passengers were carried during these “joy rides.”
Aircraft
- Registration
- N8067Z
- Reported as
- Bell 407
- Category
- Helicopter
- Serial number
- 53573
- Engine
- Rolls-Royc 250-C47B, 600 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Guardian Flight
- Registered owner
- Guardian Flight
- Airworthiness certificate
- Standard, Normal
- Departed
- RKS · Rock Springs, UT
- Destination
- RKS · Rock Springs, UT
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 45
- Injuries
- None
- Medical
- Class 2, Without waivers/limitations
- Seat
- Right
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 250° at 12 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 27 °F, dew point 19 °F
- Altimeter
- 29.87 inHg
- Observed at
- RKS, 10 nm away
Docket · 8
The files NTSB released with the investigation on December 15, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 9.0 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.