Aircraft Accident/Incident Report

Denver, Colorado 80010
Sunday, July 29, 1984 3:58 MDT

NTSB Narrative Summary Released at Completion of Accident

THE LEFT MAIN LANDING GEAR WAS DISASSEMBLED & REASSEMBLED BY COMPANY MAINTENANCE PERSONNEL & THE ACFT WAS BEING FERRIED TO ANOTHER BASE FOR PERMANENT LANDING GEAR REPAIRS. DURING TAKEOFF, THE LEFT MAIN LANDING GEAR AND SHOCK STRUT SEPERATED FROM THE ACFT. THE PLT MADE AN EMERG LANDING WITHOUT THE LEFT MAIN GEAR WHEELS. AN EXAM OF THE GEAR REVEALED THAT THE UPPER BEARING HALVES & PISTON DAMPING RING WERE INSTALLED USING THE MAINTENANCE MANUAL. REVIEW OF THE MAINTENANCE MANUAL REVEALED THAT THE LANDING GEAR ASSEMBLY PROCEDURES WERE MISLEADING. THE MANUFACTURER ISSUED A TEMP REVISION TO THE MANUAL FOR LANDING GEAR ASSEMBLY.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Incident
Event Date 7/29/1984
Event Day of the Week Sunday
Time of Event 358
Event Time Zone Mountain Daylight Time
Event City DENVER
Event State COLORADO
Event Country --
Zipcode of the event site 80010
Event Date Year 1984
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 On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 402 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID DEN
Elevation of weather observation facility 5333
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation MDT
Lighting Conditions Night/Dark
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 12000
Sky/Lowest/Cloud Conditions Thin Broken
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 6932
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 6
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5104
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 27305
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 N9058P
NTSB Number DEN84IA241
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name de Havilland
Aircraft Model DHC-7-100
Aircraft Series Identifier DHC-7-100
Aircraft Serial Number
Certified Max Gross Weight 43500
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 59
Number of Engines 4
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Jul 22 1984 12:00AM
Airframe hours since last inspection 53
Airframe Hours 13436
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name AOR [ACOFOC ASSOCIATES
Aircraft Owner Street Address 700 SOUTH HAVANA
Aircraft Owner City AURORA
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 80012
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address HANGER 6, STAPLETON INT'L
Operator City DENVER
Operator State CO
Operator Country
Operator Zip code 80207
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) Ferry
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code CPR
Departure City CASPER
Departure State WY
Departure Country
Departure Time 155
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code DEN
Destination City DENVER
Destination State CO
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 --