Aircraft Incident/Accident Report


Lewiston, Idaho 83501
Wednesday, May 17, 1989 14:15 PDT

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NTSB Narrative Summary Released at Completion of Accident
DURING PRACTICE EXTERNAL LOAD (WATER DROP) OPS, PLT AT CONTROLS WAS MANEUVERING FOR DROP AND FAILED TO ALLOW FOR A LOAD SWING WHICH CAUSED THE HELICOPTER TO PITCH UP. PLT LOWERED COLLECTIVE AND COLLIDED WITH TERRAIN. BOTH PILOTS WERE PRACTICING WATER DROPS DURING THE FLIGHT.
NTSB Probable Cause Narrative
THE PILOT'S IMPROPER USE OF THE HELICOPTER'S FLIGHT CONTROLS. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S MISJUDGEMENT OF THE EXTERNAL LOAD CHARACTERISTICS.
Event Information
Type of EventAccident 
Event Date5/17/1989 
Event Day of the WeekWednesday 
Time of Event1415 
Event Time ZonePacific Daylight Time 
Event CityLEWISTON  
Event StateIDAHO 
Event Country-- 
Zipcode of the event site83501  
Event Date Year1989 
Event Date Month
MidAir Collision IndicatorNo 
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 airportOff Airport/Airstrip 
Distance from airport in statute miles
Degrees magnetic from airport
Airport Elevation-- 
Weather Briefing CompletenessUnknown 
Investigator's weather sourcePilot 
Time of the weather observation0  
Direction of event from weather observation facility (degrees)
Weather Observation Facility ID  
Elevation of weather observation facility
Distance of event from weather observation facility (units?)
Time Zone of the weather observation  
Lighting ConditionsDay 
Lowest Ceiling Height
Lowest Non-Ceiling Height
Sky/Lowest/Cloud ConditionsClear 
Sky Condition for Lowest CeilingNone 
Visibility Runway Visual Range (Feet)
Visibility Runway Visual Value (Statute Miles)
Visibility (Statute Miles) 20 
Air Temperature at event time (in degrees celsius)24 
Dew Point at event time (in degress fahrenheit)
Wind Direction (degrees magnetic)225 
Variable Wind IndicatorUnknown 
Wind Speed (knots)
Wind Velocity Indicator Unknown 
Wind Gust IndicatorNot Gusting 
Wind Gust (knots)
Altimeter Setting at event time (in. Hg) 29 
Density Altitude (feet)-- 
Intensity of PrecipitationUnknown 
METAR weather report -- 
Event Highest InjuryMinor 
On Ground, Fatal Injuries
On Ground, Minor Injuries
On Ground, Serious Injuries
Injury Total Fatal-- 
Injury Total Minor
Injury Total None-- 
Injury Total Serious-- 
Injury Total All
Investigating AgencyNTSB 
NTSB Docket Number (internal use)212 
NTSB Notification Source-- 
NTSB Notification DateMay 17 1989 12:00AM 
NTSB Notification Time1545 
Fiche Number and/or location -used to find docket information38530 
Date of most recent change to recordDec 13 2000 12:42PM 
User who most recently changed recorddbo  
Basic weather conditionsVisual Meteorological Cond 
FAA District Office-- 
Aircraft Involved
Aircraft #1
Aircraft Registration NumberN5013C 
NTSB NumberSEA89LA087  
Missing Aircraft Indicator
Federal Aviation Reg. PartPart 133: Rotorcraft Ext. Load 
Type of Flight Plan filedNone 
Flight plan Was Activated?-- 
DamageSubstantial 
Aircraft FireNone 
Aircraft ExplosionNone 
Aircraft Manufacturer's Full NameBELL  
Aircraft Model206B III  
Aircraft Series Identifier206B III  
Aircraft Serial Number2568  
Certified Max Gross Weight3200 
Aircraft CategoryHelicopter 
Aircraft Registration ClassU.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
Number of Engines
Fixed gear or retractable gearFixed 
Aircraft, Type of Last InspectionAnnual 
Date of Last InspectionJan 13 1989 12:00AM 
Airframe hours since last inspection
Airframe Hours3389 
ELT InstalledYes 
ELT ActivatedNo 
ELT Aided Location of Event SiteNo 
ELT Type-- 
Aircraft Owner NameHILLCREST AIRCRAFT CO, INC  
Aircraft Owner Street AddressP.O. BOX 504  
Aircraft Owner CityLEWISTON  
Aircraft Owner StateID 
Aircraft Owner Country  
Aircraft Owner Zipcode83501  
Operator is an individual?-- 
Operator NameGALE WILSON  
Operator Same as Owner?No 
Operator Is Doing Business As-- 
Operator Address Same as Owner?No 
Operator Street AddressP.O. BOX 504  
Operator CityLEWISTON  
Operator StateID 
Operator Country  
Operator Zip code83501  
Operator Code  
Owner has at least one certificateYes - certificate holder 
Other Operator of large aircraft?No 
Certified for Part 133 or 137 OperationExternal Load 
Operator Certificate Number-- 
Indicates whether an air carrier operation was scheduled or notUnknown 
Indicates Domestic or International FlightUnknown 
Operator carrying Pax/Cargo/MailUnknown 
Type of Flying (Per_Bus / Primary)Other Work Use 
Second Pilot on BoardYes 
Departure Point Same as EventYes 
Departure Airport CodeLWS  
Departure City  
Departure State  
Departure Country  
Departure Time1330 
Departure Time ZonePDT 
Destination Same as Local Fltdest & departure same, accident can occur anywhere 
Destination Airport Code  
Destination City  
Destination State  
Destination Country  
Specific Phase of FlightManeuvering 
Report sent to ICAO?-- 
Evacuation occurred-- 
Date of most recent change to recordJan 2 2001 10:30AM 
User who most recently changed recorddbo  
Since inspection or accident-- 
Event Location Runway Number and Location0  
Runway Length-- 
Runway Width-- 
Sight Seeing flightNo 
Air Medical FlightNo 
Medical Flight--