Aircraft Accident/Incident Report

Lakeport, California 95453
Thursday, June 25, 2009 15:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The certified flight instructor (CFI) and pilot undergoing instruction (PUI) were on a local instructional flight. The helicopter was fueled about 15 minutes prior and they were initiating a 180-degree autorotation with a power recovery. The helicopter entered into a glide and they made the turn onto the final segment. The CFI noticed that the oil and auxiliary fuel pump lights were on. The CFI then looked at the tachometer and attempted to increase the throttle. The power did not return and the CFI force-landed the helicopter. During the landing the main rotor blade impacted the tail boom. Post accident examination of the helicopter and test run of the engine revealed no operational anomalies.

NTSB Probable Cause Narrative

A loss of engine power while maneuvering for undetermined reasons.

Event Information

Type of Event Accident
Event Date 6/25/2009
Event Day of the Week Thursday
Time of Event 1500
Event Time Zone Pacific Daylight Time
Event City Lakeport
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95453
Event Date Year 2009
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 390435N
Event Location Longitude 1230156W
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 1456 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 280
Weather Observation Facility ID UKI
Elevation of weather observation facility 614
Distance of event from weather observation facility (units?) 7
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 4500
Lowest Non-Ceiling Height 3600
Sky/Lowest/Cloud Conditions Thin Broken
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) 15
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) 310
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.95
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 26295
NTSB Notification Source CFI
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Mar 9 2010 3:15PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N515DG
NTSB Number WPR09LA312
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 Company
Aircraft Model R44 II
Aircraft Series Identifier --
Aircraft Serial Number 11503
Certified Max Gross Weight 2500
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 17 2009 12:00AM
Airframe hours since last inspection 29
Airframe Hours 501
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type C91-A
Aircraft Owner Name METRO MAILING SERVICE INC
Aircraft Owner Street Address 4251 GATEWAY PARK BLVD
Aircraft Owner City SACRAMENTO
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 95834-1975
Operator is an individual? No
Operator Name Cutting Edge Helicopters
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 4251 Gateway Park Blvd
Operator City Sacramento
Operator State CA
Operator Country USA
Operator Zip code 95834
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code UKI
Departure City Ukiah
Departure State CA
Departure Country USA
Departure Time 1445
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code SMF
Destination City Sacramento
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 6 2009 8:49PM
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 --