Aircraft Accident/Incident Report

Ocate, New Mexico 87734
Thursday, September 15, 2011 16:50 MDT

NTSB Narrative Summary Released at Completion of Accident

The helicopter was about 80 to 150 feet above ground level with the airspeed about 10 to 15 knots, when the pilot got a low rotor rpm warning, and the engine lost power. The pilot lowered the collective pitch lever, put in right pedal, and kept “full throttle.” The helicopter made two to three complete 360 degree turns before it impacted terrain. According to a carburetor icing probability chart, an engine operating in the ambient conditions at the time of the accident could expect a serious risk of carburetor icing while at cruise power. The pilot reported that he had possibly failed to use enough carburetor heat and he thought that was the reason for the loss of engine power. An examination of the helicopter showed no preimpact mechanical failures or anomalies that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot’s failure to apply carburetor heat, which resulted in the formation of carburetor ice and a partial loss of engine power.

Event Information

Type of Event Accident
Event Date 9/15/2011
Event Day of the Week Thursday
Time of Event 1650
Event Time Zone Mountain Daylight Time
Event City Ocate
Event State NEW MEXICO
Event Country --
Zipcode of the event site 87734
Event Date Year 2011
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 361520N
Event Location Longitude 1050322W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1655 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 310
Weather Observation Facility ID KAXX
Elevation of weather observation facility 8380
Distance of event from weather observation facility (units?) 14
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 6000
Lowest Non-Ceiling Height 4800
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 12
Dew Point at event time (in degress fahrenheit) 5
Wind Direction (degrees magnetic) 260
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.23
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KAXX 152255Z AUTO 26006KT 10SM -RA SCT048 BKN060 O
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 30943
NTSB Notification Source FAA ASW Regional Operations Ce
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Feb 22 2013 12:36PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N828PM
NTSB Number CEN11LA648
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 R44
Aircraft Series Identifier --
Aircraft Serial Number 1493
Certified Max Gross Weight 2400
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats 2
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 14 2011 12:00AM
Airframe hours since last inspection 64
Airframe Hours 1381
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name ROBERT L MYERS
Aircraft Owner Street Address --
Aircraft Owner City SKIATOOK
Aircraft Owner State OK
Aircraft Owner Country USA
Aircraft Owner Zipcode 74070-6511
Operator is an individual? Yes
Operator Name ROBERT L MYERS
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City SKIATOOK
Operator State OK
Operator Country USA
Operator Zip code 74070-6511
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Ocate
Departure State NM
Departure Country USA
Departure Time 1626
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code --
Destination City Ocate
Destination State NM
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 22 2013 12:49PM
User who most recently changed record johb
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --