Aircraft Accident/Incident Report

Temple Bar, Arizona 86444
Sunday, December 6, 2009 10:30 PST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that after arriving to work late he began his preflight inspection on the helicopter. As the pilot was inspecting the left engine, the refueling truck arrived and the pilot lowered the left engine cowling door and tended to the refueling of the helicopter. The pilot said that following the refueling of the helicopter, he continued his preflight inspection and subsequently boarded the passengers “not realizing I left the engine cowling ‘unlatched’.” While en route to the flight’s intended destination, the pilot heard a “pop” followed by feedback in the cyclic control. The pilot was informed by the pilot of a second helicopter that the left engine cowling appeared to be open and partially separated. The pilot initiated a precautionary landing to the desert surface and landed without further incident. Examination of the helicopter by a Federal Aviation Administration inspector revealed that two of the three main rotor blades were damaged. One main rotor blade exhibited a one-inch-long gouge about one-quarter of an inch in depth near the blade root. A portion of the left engine cowling was separated and not located.

NTSB Probable Cause Narrative

The pilot’s inadequate preflight inspection. Contributing to the accident was the pilot’s diverted attention during the preflight inspection.

Event Information

Type of Event Accident
Event Date 12/6/2009
Event Day of the Week Sunday
Time of Event 1030
Event Time Zone Pacific Standard Time
Event City Temple Bar
Event State ARIZONA
Event Country --
Zipcode of the event site 86444
Event Date Year 2009
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 360113N
Event Location Longitude 1142005W
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 1056 Pacific Standard Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID LVS
Elevation of weather observation facility 1870
Distance of event from weather observation facility (units?) 35
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 7000
Sky/Lowest/Cloud Conditions Few
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) 4
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.82
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 7
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 26530
NTSB Notification Source FAA Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jan 19 2010 11:37AM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N548SA
NTSB Number WPR10LA075
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
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 AEROSPATIALE
Aircraft Model AS 355F1
Aircraft Series Identifier --
Aircraft Serial Number 5167
Certified Max Gross Weight 4950
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 7
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Nov 22 2009 12:00AM
Airframe hours since last inspection 36
Airframe Hours 7390
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name HELIUSA AIRWAYS INC
Aircraft Owner Street Address 235 E TROPICANA AVE STE 115
Aircraft Owner City LAS VEGAS
Aircraft Owner State NV
Aircraft Owner Country USA
Aircraft Owner Zipcode 89169-7383
Operator is an individual? No
Operator Name HELIUSA AIRWAYS INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 235 E TROPICANA AVE STE 115
Operator City LAS VEGAS
Operator State NV
Operator Country USA
Operator Zip code 89169-7383
Operator Code --
Owner has at least one certificate Yes - certificate holder
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code LAS
Departure City Las Vegas
Departure State NV
Departure Country USA
Departure Time 1000
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code --
Destination City Grand Canyon
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 19 2010 11:37AM
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 Yes
Air Medical Flight No
Medical Flight --