- Date
- April 21, 2016, 11:12 local (16:12 UTC)
- Place
- Los Fresnos, TX
- Injuries
- 1 serious
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N64702Bell 47G-2A
- Defining event
- Maneuvering-low-alt flying: Loss of control in flight
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 1, 2017
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA Flight Standards District Office
- FAA report
- 20160421008359A
- Case key
- 93052
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 pilot's inability to see and avoid the power lines because of trees obscuring his view.
Findings · 2
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
According to the operator, the commercial pilot of the helicopter was performing an aerial application flight when the helicopter struck a set of power lines that ran perpendicular to the field being sprayed. The operator stated that the lines were obscured due to trees.
Factual narrative
On April 21, 2016, about 1112 central daylight time, a Bell 47G-2A, N64702, collided with power lines, impacted terrain, and caught fire near Los Fresnos, Texas. The pilot, the sole occupant on board, was seriously injured. The helicopter was destroyed. The helicopter was registered to and operated by Hendrickson Flying Service, Inc, Rochelle, Illinois, under the provisions of 14 Code of Federal Regulations Part 137 as an aerial application flight. Visual meteorological conditions prevailed at the time of the accident, and no flight plan had been filed. The local flight originated from Weslaco, Texas, at an undetermined time.The following account of the accident is based up a report submitted by the operator because the pilot was seriously injured and was in the hospital: The pilot was spraying a cotton field between two sets of power lines that ran parallel to his flight path. The helicopter struck a third set of power lines that ran perpendicular to the field being sprayed. The power lines were obscured by trees. A ground fire erupted after the accident, resulting in the helicopter being destroyed.
Aircraft
- Registration
- N64702
- Reported as
- Bell 47G-2A
- Category
- Helicopter
- Serial number
- 2706
- Built
- 1962
- Airframe hours
- 12,920
- Engine
- Lycoming VO-435-A2F, 260 horsepower, reciprocating
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Aerial application · Part 137
- Operator
- Hendrickson Flying Service, Inc.
- Registered owner
- Hendrickson Flying Service, Inc.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · March 14, 2016
- Departed
- Weslaco, TX
- Destination
- Weslaco, TX
- Equipment
- Onboard weather, Data recorder, Handheld GPS
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 61
- Injuries
- Serious
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Helicopter, Airplane
- Medical
- Class 2, With waivers/limitations
- Seat
- Left
- Restraint
- 4-point
- Flight hours
- 5,605 total · 120 in this make and model · 5,284 as pilot in command · 20 in the last 90 days · 18 in the last 30 days · 5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 150° at 9 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 3,400 ft broken
- Temperature
- 82 °F, dew point 72 °F
- Altimeter
- 29.92 inHg
- Observed at
- KMFE, 51 nm away
Docket · 3
The files NTSB released with the investigation on March 23, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.3 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.