N/A Airport
Aircraft Accident/Incident Report

San Manuel, Arizona 85631
Saturday, May 31, 2014 10:30 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot stated that the purpose of the flight was to conduct low-level aerial operations for cattle herding. The pilot maneuvered the helicopter in an effort to keep the cattle close together and did not notice a phone line in the helicopter's flight path. The main rotor blades contacted the lines and they became entangled in the main rotor head. The helicopter descended from approximately 15 feet above ground level and impacted the terrain hard, collapsing the skids. As a result of the impact, the helicopter sustained substantial damage to both the tail and main rotor blades. The pilot reported no pre impact mechanical malfunctions or failure with the helicopter that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot's failure to maintain an adequate obstacle clearance altitude from phone wires while performing low-level operations.

Event Information

Type of Event Accident
Event Date 5/31/2014
Event Day of the Week Saturday
Time of Event 1030
Event Time Zone Mountain Standard Time
Event City San Manuel
Event State ARIZONA
Event Country --
Zipcode of the event site 85631
Event Date Year 2014
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 323730N
Event Location Longitude 1103350W
Event Location Airport N/A
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Unknown
Time of the weather observation
Direction of event from weather observation facility (degrees) 211
Weather Observation Facility ID KDMA
Elevation of weather observation facility 2704
Distance of event from weather observation facility (units?) 32
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) --
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) --
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KDMA 311758Z AUTO VRB04KT 10SM CLR 34/03 A29
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 33109
NTSB Notification Source FAA ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 29 2014 8:19PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7122E
NTSB Number WPR14CA216
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ROBINSON HELICOPTER
Aircraft Model R22 BETA
Aircraft Series Identifier BETA
Aircraft Serial Number 2909
Certified Max Gross Weight 1369
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats 2
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Dec 2 2013 12:00AM
Airframe hours since last inspection --
Airframe Hours 1928
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MASTOPIETRO KURT I
Aircraft Owner Street Address --
Aircraft Owner City MESA
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 85205-5116
Operator is an individual? No
Operator Name MASTOPIETRO KURT I
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City MESA
Operator State AZ
Operator Country USA
Operator Zip code 85205-5116
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Aerial Observation
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code --
Departure City SAN MANUEL
Departure State AZ
Departure Country USA
Departure Time 1000
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City SAN MANUEL
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 29 2014 8:19PM
User who most recently changed record stam
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --