Foley Municipal Airport
Aircraft Accident/Incident Report

Foley, Alabama 36535
Thursday, March 29, 2007 9:10 CDT

NTSB Narrative Summary Released at Completion of Accident

According to the certified flight instructor (CFI), the purpose of the flight was for the student to practice approaches and departures. They used a parallel taxiway for takeoff. The student pilot was at the controls and began a normal takeoff. When they were about 250 feet above ground level (agl) on initial climb out the engine started backfiring and the helicopter began yawing left and right. The CFI immediately took the controls as the engine RPM started to decay. He entered an autorotation and reduced the engine RPM to reduce the yawing from the engine backfiring. At about 40 feet agl he flared the helicopter to stop the descent and slow the forward airspeed. He leveled the helicopter and they settled to the surface and were sliding forward when the front skids snagged the grass and the helicopter nosed over coming to rest on the right side. The CFI and student pilot escaped without injury. Examination of the helicopter by an FAA Inspector, found the helicopter resting on its right side with substantial damage to the main rotor blades, windscreen and the tail boom. Further examination of the engine found the engines No. 4 exhaust valve stuck in the valve guide with the rocker arm out of position.

NTSB Probable Cause Narrative

Loss of engine power due to failure of the No. 4 engine exhaust valve.

Event Information

Type of Event Accident
Event Date 3/29/2007
Event Day of the Week Thursday
Time of Event 910
Event Time Zone Central Daylight Time
Event City Foley
Event State ALABAMA
Event Country --
Zipcode of the event site 36535
Event Date Year 2007
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 302540N
Event Location Longitude 0874202W
Event Location Airport Foley Municipal Airport
Event Location Nearest Airport ID 5R4
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 74
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1053 Central Daylight Time
Direction of event from weather observation facility (degrees) 340
Weather Observation Facility ID MOB
Elevation of weather observation facility 219
Distance of event from weather observation facility (units?) 29
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) 26
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.24
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 Docket Number (internal use) 23323
NTSB Notification Source CFI
NTSB Notification Date Mar 29 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 31 2008 11:52AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Birmingham FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N494D
NTSB Number ATL07LA063
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire --
Aircraft Explosion --
Aircraft Manufacturer's Full Name Randy Stanley
Aircraft Model Rotoway Exc 162F
Aircraft Series Identifier --
Aircraft Serial Number 6567
Certified Max Gross Weight 1500
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Jul 1 2006 12:00AM
Airframe hours since last inspection 63
Airframe Hours 63
ELT Installed No
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name Garanco, Inc
Aircraft Owner Street Address PO Box 100
Aircraft Owner City Pilot Mountain
Aircraft Owner State NC
Aircraft Owner Country USA
Aircraft Owner Zipcode 27041
Operator is an individual? Yes
Operator Name Mark Peterson
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2379 Moorehaven
Operator City Clearwater
Operator State FL
Operator Country USA
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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 Yes
Departure Airport Code 5R4
Departure City Foley
Departure State AL
Departure Country USA
Departure Time --
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 20 2008 3:38PM
User who most recently changed record KENJ
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --