Imperial Airport
Aircraft Accident/Incident Report

Imperial, California 92251
Sunday, June 30, 1985 8:53 PDT

NTSB Narrative Summary Released at Completion of Accident

THIS PLT EXECUTED A FULL FLAP 40 MPH LANDING. AFTER TOUCHDOWN THE LEFT MAIN LANDING GEAR LIFTED OFF THE RWY, & THE PLT WAS NOT ABLE TO LOWER IT USING RUDDER, BRAKES, & AILERON CONTROL. NO ATTEMPT WAS MADE O USE POWER TO REGAIN DIRECTINAL CONTROL AS THE ACFT GROUND LOOPED TO THE LEFT. THE RIGHT MAIN LANDING GEAR COLLAPSED INBOARD. ALL LANDING GEAR FRACTURES WERE DUE TO OVERLOAD CONDITIONS. THE WIND WAS FROM 30 DEGREES LEFT OF THE RWY HEADING AT 7 KTS.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 6/30/1985
Event Day of the Week Sunday
Time of Event 853
Event Time Zone Pacific Daylight Time
Event City IMPERIAL
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92251
Event Date Year 1985
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport IMPERIAL
Event Location Nearest Airport ID IPL
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 56
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 853 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID IPL
Elevation of weather observation facility 56
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 16000
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) 50
Air Temperature at event time (in degrees celsius) 37
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 290
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 2600
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 996
NTSB Notification Source --
NTSB Notification Date Jun 30 1985 12:00AM
NTSB Notification Time 2300
Fiche Number and/or location -used to find docket information 28385
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N55XV
NTSB Number LAX85LA300
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 HELIO
Aircraft Model H-250
Aircraft Series Identifier H-250
Aircraft Serial Number 2520
Certified Max Gross Weight 3400
Aircraft Category Airplane
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 808
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name P.R. PORTER & SON
Aircraft Owner Street Address P.O. BOX 1889
Aircraft Owner City EL CENTRO
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 92244
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code YUM
Departure City YUMA
Departure State AZ
Departure Country
Departure Time 840
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code IPL
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 32
Runway Length 4304
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --