Aircraft Accident/Incident Report

Monticello, Mississippi 39654
Wednesday, July 29, 1998 18:45 CDT

NTSB Narrative Summary Released at Completion of Accident

While maneuvering during an aerial application, the pilot said that he was attempting to clear some power lines when he reported that the engine lost power and the rotor rpm dropped, resulting in a loss of control. The helicopter struck the ground sideways, and rolled over, causing the main rotor blades to strike the ground. Examination of the wreckage by the FAA revealed that fuel was present. The FAA inspector said, '...when he [pilot] attempted to climb over the powerlines to his left, he seemed have lost power and the aircraft came back down on [the] right side and [the] blade struck the ground and he crashed. According to the FAA inspector's report the pilot lost control of the helicopter, and no discrepancies could be found with the airframe or the engine. The pilot did not return the NTSB Form 6120.1/2. His factual account of the accident are not known.

NTSB Probable Cause Narrative

the pilot's failure to maintain control of the helicopter while maneuvering resulting in the main rotor blades striking the ground.

Event Information

Type of Event Accident
Event Date 7/29/1998
Event Day of the Week Wednesday
Time of Event 1845
Event Time Zone Central Daylight Time
Event City MONTICELLO
Event State MISSISSIPPI
Event Country --
Zipcode of the event site 39654
Event Date Year 1998
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
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 1850 Central Daylight Time
Direction of event from weather observation facility (degrees) 210
Weather Observation Facility ID MCB
Elevation of weather observation facility 413
Distance of event from weather observation facility (units?) 7
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 25000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 24
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 4
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1004
NTSB Notification Source --
NTSB Notification Date Jul 30 1998 12:00AM
NTSB Notification Time 1337
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 23 2001 1:56PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1016A
NTSB Number MIA98LA214
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 47-D1
Aircraft Series Identifier 47-D1
Aircraft Serial Number 51-638
Certified Max Gross Weight 2850
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 1400
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ALAN ROBINSON
Aircraft Owner Street Address MARTINS LANDIN HOXBAR RTE
Aircraft Owner City ARDMORE
Aircraft Owner State OK
Aircraft Owner Country
Aircraft Owner Zipcode 73401
Operator is an individual? --
Operator Name PAUL M. TROST
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address RT 2 BOX 133-A
Operator City SOLOMON
Operator State KS
Operator Country
Operator Zip code 67480
Operator Code KYTG
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1800
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 --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 23 2001 1:56PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --