Aircraft Accident/Incident Report

Willcox, Arizona 85643
Monday, April 23, 2001 14:30 MST

NTSB Narrative Summary Released at Completion of Accident

The single engine helicopter impacted trees and terrain during a forced landing following a reported loss of engine power. According to the crew's statements, during the positioning flight back to their hospital base one of the flight nurses spotted a herd of antelope and pointed them out to the pilot. The pilot turned toward the herd. As he slowed down and maneuvered the helicopter to view the animals he detected the engine out audio warning and corresponding engine out warning light. The pilot noticed the rotor rpm dropping and he looked at the engine turbine outlet temperature gauge to verify that the engine had lost power. He added that he could no longer hear the engine. The pilot lowered the collective at 500 feet agl, and entered an autorotation. The pilot noticed the rotor rpm was in the low 90's at the time of autorotation entry. The pilot selected a landing area and informed the cabin crew that this was for real and to brace themselves. As the helicopter decelerated, the pilot rolled the throttle to the off position. When the pilot realized that he was going to impact a tree, he pulled up on collective to cushion the landing. The helicopter impacted the tree, then the ground, and came to rest upright in flat desert terrain covered with scrub brush. Photographs taken at the accident site revealed open areas void of trees surrounding the landing spot. The helicopter was examined and nothing was noted that would have precluded normal operation. A post-accident test run of the engine revealed no anomalies during repeated accelerations and decelerations. The engine's measured power output exceeded new engine specifications. The engine was not equipped with an auto reignition system.

NTSB Probable Cause Narrative

A loss of engine power due to the likely unporting of the fuel tank pickups as the helicopter was maneuvered to look at animals on the ground. Also causal was the pilot's misjudged touchdown point during an autorotational approach, which resulted in the in-flight impact with a tree.

Event Information

Type of Event Accident
Event Date 4/23/2001
Event Day of the Week Monday
Time of Event 1430
Event Time Zone Mountain Standard Time
Event City Willcox
Event State ARIZONA
Event Country --
Zipcode of the event site 85643
Event Date Year 2001
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 321500N
Event Location Longitude 1100600W
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1355 Mountain Standard Time
Direction of event from weather observation facility (degrees) 240
Weather Observation Facility ID TUS
Elevation of weather observation facility 2643
Distance of event from weather observation facility (units?) 42
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) 10
Air Temperature at event time (in degrees celsius) 33
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 13492
NTSB Notification Source FAA
NTSB Notification Date Apr 25 2001 12:00AM
NTSB Notification Time 820
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record May 30 2003 9:51AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-SDL-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N215M
NTSB Number LAX01LA157
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 206-L3
Aircraft Series Identifier --
Aircraft Serial Number 51272
Certified Max Gross Weight 4150
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Mar 8 2001 12:00AM
Airframe hours since last inspection 72.1
Airframe Hours 3596.2
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name William Morrissey
Aircraft Owner Street Address --
Aircraft Owner City Phoenix
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 85034
Operator is an individual? No
Operator Name Critical Air Medicine, Inc.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 4141 Kearny Villa Road
Operator City San Diego
Operator State --
Operator Country USA
Operator Zip code 92123
Operator Code IBUA
Owner has at least one certificate --
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) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code TUS
Departure City Tucson
Departure State AZ
Departure Country USA
Departure Time 1400
Departure Time Zone MST
Destination Same as Local Flt --
Destination Airport Code P33
Destination City Willcox
Destination State AZ
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Feb 2 2009 1:38PM
User who most recently changed record johb
Since inspection or accident Time of Accident
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight Yes
Medical Flight --