Aircraft Accident/Incident Report

Moulton, Alabama 35650
Sunday, May 13, 2007 17:30 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot recently purchased the helicopter through an aircraft broker. An annual inspection was done prior to the sale, at which time a main rotor blade was replaced and the other three were overhauled. The accident occurred on the fourth flight of the day of a multiple-leg cross-country flight. The flight departed from one of several planned fuel stops. No flight plan was filed, and searchers found the fire- and impact-damaged wreckage 2 days later in wooded terrain. Three of the four main rotor blades were found separated from the main rotor hub with one of the blades located about 1,100 feet from the main wreckage, consistent with an in-flight separation. A National Transportation Safety Board materials engineer examined the blade retention strap assemblies, and no preexisting material issues were identified to explain why one or more main rotor blades could have separated prior to impact.

NTSB Probable Cause Narrative

The separation of a main rotor blade from its tension torsion bar for an undetermined reason.

Event Information

Type of Event Accident
Event Date 5/13/2007
Event Day of the Week Sunday
Time of Event 1730
Event Time Zone Central Daylight Time
Event City Moulton
Event State ALABAMA
Event Country --
Zipcode of the event site 35650
Event Date Year 2007
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 341914N
Event Location Longitude 0871510W
Event Location Airport --
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 Weather Observation Facility
Time of the weather observation 1753 Central Daylight Time
Direction of event from weather observation facility (degrees) 145
Weather Observation Facility ID MSL
Elevation of weather observation facility 550
Distance of event from weather observation facility (units?) 56
Time Zone of the weather observation CDT
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) 29
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.05
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 24780
NTSB Notification Source FAA ATL ROC
NTSB Notification Date May 15 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Dec 23 2008 5:16PM
User who most recently changed record broda
Basic weather conditions Visual Meteorological Cond
FAA District Office Birmingham, AL. FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N468WE
NTSB Number MIA07FA098
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name HUGHES
Aircraft Model 369A
Aircraft Series Identifier --
Aircraft Serial Number 280285
Certified Max Gross Weight 2250
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 3
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 May 1 2007 12:00AM
Airframe hours since last inspection --
Airframe Hours 3984
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name SCOTT JOHN A
Aircraft Owner Street Address --
Aircraft Owner City Pomona
Aircraft Owner State KS
Aircraft Owner Country USA
Aircraft Owner Zipcode 66076-9680
Operator is an individual? Yes
Operator Name SCOTT JOHN A
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Pomona
Operator State KS
Operator Country USA
Operator Zip code 66076-9680
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 No
Departure Airport Code SCD
Departure City Sylacauga
Departure State AL
Departure Country USA
Departure Time 1645
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code MSL
Destination City Muscle
Destination State AL
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 12 2008 2:27PM
User who most recently changed record muzd
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 --