Robert Mueller Airport
Aircraft Accident/Incident Report

Austin, Texas 78723
Tuesady, May 21, 1985 19:14 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT STATED HE FELT THE GEAR EXTEND AND THE CORRESPONDING DECREASE IN AIRSPEED WHEN THE GEAR WAS LOWERED DURING THE APCH. HE STATED HE THOUGHT HE OBSERVED A GREEN GEAR DOWN INDICATION AND HE DID OBSERVE THE SHADOW OF THE EXTENDED GEAR ON THE GROUND AS THE ACFT CROSSED THE THRESHOLD. WITNESSES REPORTED THE GEAR APPEARED TO BE IN THE NORMAL POSITION FOR LANDING. DURING THE LANDING ROLL THE GEAR COLLAPLED. THREE DIFFERENT ACFT MAINTENANCE PERSONNEL EXAMINED THE ACFT AND REPORTED FINDING NO REASON FOR THE GEAR RETRACTION.

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 1914
Event Time Zone Central Daylight Time
Event City AUSTIN
Event State TEXAS
Event Country --
Zipcode of the event site 78723
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 ROBERT MUELLER
Event Location Nearest Airport ID AUS
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 632
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
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 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
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) 27
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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) 811
NTSB Notification Source --
NTSB Notification Date May 22 1985 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information 28039
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 N6665P
NTSB Number FTW85LA231
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 PIPER
Aircraft Model PA-24-250
Aircraft Series Identifier PA-24-250
Aircraft Serial Number 24-1789
Certified Max Gross Weight 2900
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 --
Airframe hours since last inspection --
Airframe Hours 2100
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name WINKLE AND WELLS
Aircraft Owner Street Address P.O. BOX 45538
Aircraft Owner City DALLAS
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 75245
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 DAL
Departure City DALLAS
Departure State TX
Departure Country
Departure Time 1730
Departure Time Zone CDT
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 17
Runway Length 5606
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --