Mathis Airport
Aircraft Accident/Incident Report

San Angelo, Texas 76902
Tuesady, May 21, 1985 12:32 CDT

NTSB Narrative Summary Released at Completion of Accident

A PIECE OF UNIDENTIFIED EQUIPMENT REPORTEDLY WAS NOT PROPERLY SECURED DURING PREVIOUS MAINTENANCE. THE EQUIPMENT REPORTEDLY WAS MOUNTED IMMEDIATELY ABOVE THE NOSE WHEEL EXTENSION/RETRACTION MECHANISM AND MOVED DUE TO ACFT VIBRATION PREVENTING THE NOSE GEAR FROM BEING EXTENDED. A LANDING WAS MADE WITH THE MAIN GEAR DOWN AND LOCKED AND THE NOSE GEAR IN THE RETRACTED POSITION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/21/1985
Event Day of the Week Tuesday
Time of Event 1232
Event Time Zone Central Daylight Time
Event City SAN ANGELO
Event State TEXAS
Event Country --
Zipcode of the event site 76902
Event Date Year 1985
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MATHIS
Event Location Nearest Airport ID SJT
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 1915
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1232 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID SJT
Elevation of weather observation facility 1915
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 10000
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) 20
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 300
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) --
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1639
NTSB Notification Source --
NTSB Notification Date May 21 1985 12:00AM
NTSB Notification Time 1300
Fiche Number and/or location -used to find docket information 29016
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 N711LL
NTSB Number FTW85LA229
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 MITSUBISHI
Aircraft Model MU-2B-20
Aircraft Series Identifier MU-2B-20
Aircraft Serial Number 180
Certified Max Gross Weight 8930
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 9
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name EXECUTIVE AERO, INC.
Aircraft Owner Street Address STAR A, BOX 358
Aircraft Owner City HOBBS
Aircraft Owner State NM
Aircraft Owner Country
Aircraft Owner Zipcode 88240
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
Operator City
Operator State
Operator Country
Operator Zip code
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code LBB
Departure City LUBBOCK
Departure State TX
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt crash at destination city
Destination Airport Code
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 36
Runway Length 6920
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --