Aircraft Accident/Incident Report

Wewahitchka, Florida 32465
Friday, April 3, 1998 9:00 CST

NTSB Narrative Summary Released at Completion of Accident

The pilot was about to start agricultural operations, and had turned on the fertilizer bucket, when he reported that the hydraulic gauges started to 'surge.' He said the helicopter, '...then took a violent turn to the left...the helicopter jerked for a third time and came back level.' He released the fertilizer bucket, and elected to make a forced landing. He stated, '...the control was going left to right, the collective was not reacting properly, so I spooled off the throttle and landed in the trees.' Examination of the helicopter's hydraulic system after the accident revealed that impact damage had destroyed the servos and the hydraulic fluid reservoir. No discrepancies were found with the hydraulic system.

NTSB Probable Cause Narrative

The pilot's loss of control as a result of erratic flight control movement due to a surge in hydraulic pressure for undetermined reasons.

Event Information

Type of Event Accident
Event Date 4/3/1998
Event Day of the Week Friday
Time of Event 900
Event Time Zone Central Standard Time
Event City WEWAHITCHKA
Event State FLORIDA
Event Country --
Zipcode of the event site 32465
Event Date Year 1998
Event Date Month 4
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 Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 19
Wind Direction (degrees magnetic) 130
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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 Unknown
NTSB Docket Number (internal use) 347
NTSB Notification Source --
NTSB Notification Date Apr 3 1998 12:00AM
NTSB Notification Time 1210
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:09AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N508DD
NTSB Number MIA98LA120
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 133: Rotorcraft Ext. Load
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 205
Aircraft Series Identifier 205
Aircraft Serial Number 67-17678
Certified Max Gross Weight 9500
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 100 Hour
Date of Last Inspection --
Airframe hours since last inspection 15
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name PRESISION AIR SERVICE
Aircraft Owner Street Address HANGER 209,CRIAG FIELD
Aircraft Owner City SELMA
Aircraft Owner State AL
Aircraft Owner Country
Aircraft Owner Zipcode 36701
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
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 800
Departure Time Zone CST
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 Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --