Piedmont Triad Int'l Airport
Aircraft Accident/Incident Report

Greensboro, North Carolina 27410
Sunday, October 7, 1990 19:21 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS IN PREPARATION FOR LANDING WHEN HE WAS UNABLE TO GET A DOWN AND LOCKED INDICATION ON THE LANDING GEAR. AFTER MANEUVERING THE AIRCRAFT, THE GEAR APPEARED TO BE VISUALLY DOWN, HOWEVER NO DOWN AND LOCKED INDICATION WAS SHOWN IN THE COCKPIT. UPON TOUCHDOWN, ALL THREE GEAR COLLAPSED. THE INVESTIGATION REVEALED THAT A RUBBER/METAL COUPLING IN THE LANDING GEAR ACTUATOR ASSEMBLY HAD FAILED, DISABLING NORMAL AND ALTERNATE GEAR EXTENSION CAPABILITY.

NTSB Probable Cause Narrative

THE FAILURE OF THE RUBBER/METAL COUPLING IN THE LANDING GEAR ACTUATOR ASSEMBLY, WHICH RESULTED IN THE INABILITY OF THE PILOT TO LOWER AND LOCK THE LANDING GEAR.

Event Information

Type of Event Accident
Event Date 10/7/1990
Event Day of the Week Sunday
Time of Event 1921
Event Time Zone Eastern Daylight Time
Event City GREENSBORO
Event State NORTH CAROLINA
Event Country --
Zipcode of the event site 27410
Event Date Year 1990
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PIEDMONT TRIAD INT'L
Event Location Nearest Airport ID GSO
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 926
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1850 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID GSO
Elevation of weather observation facility 926
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 2500
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) 15
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 700
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 NTSB
NTSB Docket Number (internal use) 744
NTSB Notification Source --
NTSB Notification Date Oct 9 1990 12:00AM
NTSB Notification Time 1100
Fiche Number and/or location -used to find docket information 41782
Date of most recent change to record Dec 12 2000 5:26PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9315V
NTSB Number ATL91LA002
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 MOONEY
Aircraft Model M20E
Aircraft Series Identifier M20E
Aircraft Serial Number 700008
Certified Max Gross Weight 2575
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 5 1990 12:00AM
Airframe hours since last inspection 52
Airframe Hours 1518
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name HAL D. ALLMAN, SR
Aircraft Owner Street Address P.O. BOX 1383
Aircraft Owner City CONCORD
Aircraft Owner State NC
Aircraft Owner Country
Aircraft Owner Zipcode 28025
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code RUQ
Departure City SALISBURY
Departure State NC
Departure Country
Departure Time 1730
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code GSO
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 14
Runway Length 6380
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --