Ada Municipal Airport
Aircraft Accident/Incident Report

Ada, Oklahoma 74820
Monday, May 24, 1982 12:20 CDT

NTSB Narrative Summary Released at Completion of Accident

THIS WAS A COMMERCIAL CERTIFICATION CHECK FLIGHT FOR THE PILOT-IN-COMMAND. AFTER COMPLETING NORMAL HOVERING MANEUVERS, THE EXAMINER INSTRUCTED THE PILOT TO EXECUTE A HOVERING AUTOROTATION OVER A LEVEL AREA OF GRASS. THE PILOT ROLLED THE THROTTLE OFF ON A COUNT OF THREE. HE CORRECTED FOR TORQUE BY APPLYING RIGHT PEDAL, BUT DID NOT CORRECT FOR TRANSLATING TENDENCY WITH RIGHT CYCLIC. THE AIRCRAFT TOUCHED DOWN IN A LEFT-SKID-LOW ATTITUDE WHILE DRIFTING LEFT. THE LEFT SKID DUG INTO WET SOFT TERRAIN AND THE AIRCRAFT ROLLED TO THE LEFT. THE MAIN ROTOR BLADES STRUCK THE GROUND AND THE LEFT SKID FAILED. THE EXAMINER STATED THAT HE DID NOT HAVE TIME TO REACT TO THE PILOT'S TECHNIQUE.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/24/1982
Event Day of the Week Monday
Time of Event 1220
Event Time Zone Central Daylight Time
Event City ADA
Event State OKLAHOMA
Event Country --
Zipcode of the event site 74820
Event Date Year 1982
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport ADA MUNICIPAL
Event Location Nearest Airport ID ADH
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Unknown
Time of the weather observation 1220
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 700
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 4
Air Temperature at event time (in degrees celsius) 68
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 120
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
Intensity of Precipitation Light
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1189
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N90763
NTSB Number FTW82DA192
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name ROBINSON
Aircraft Model R22
Aircraft Series Identifier R22
Aircraft Serial Number 266
Certified Max Gross Weight 1300
Aircraft Category Helicopter
Aircraft Registration Class Unknown
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 47
Airframe Hours 148
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name AIRADA AVIATION, INC.
Aircraft Owner Street Address P.O. BOX 218
Aircraft Owner City ADA
Aircraft Owner State OK
Aircraft Owner Country
Aircraft Owner Zipcode 74820
Operator is an individual? --
Operator Name AIRADA AVIATION, INC.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address P.O. BOX 218
Operator City ADA
Operator State OK
Operator Country
Operator Zip code 74820
Operator Code
Owner has at least one certificate Yes - certificate holder
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 --
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 ADH
Departure City ADA
Departure State OK
Departure Country
Departure Time 1215
Departure Time Zone
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code ADH
Destination City ADA
Destination State OK
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 18 2002 4:50PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --