Vance Brand Airport
Aircraft Accident/Incident Report

Longmont, Colorado 80501
Monday, April 1, 1996 14:49 MST

NTSB Narrative Summary Released at Completion of Accident

Upon arriving at the destination airport from a local cross country flight, the pilot performed three touch and go landings. While on the crosswind leg of the fourth pattern circuit, which was to culminate in a full stop landing, the engine lost power and the pilot made an emergency landing in a plowed field. During the landing roll, one main landing gear collapsed and the airplane nosed over. The flight originated with 11 gallons of fuel on board, and the duration of the flight was 54 minutes. According to the pertinent Lycoming engine chart, the fuel consumption at 75 percent power (2,450 rpm) is 10.5 gallons per hour. A review of the pilot's aero/medical data revealed him to be non-current in flight proficiency and medical certification.

NTSB Probable Cause Narrative

the pilot's inadequate preflight planning and preparation in that he failed to ensure the aircraft had sufficient fuel to complete the flight. A factor was the soft terrain.

Event Information

Type of Event Accident
Event Date 4/1/1996
Event Day of the Week Monday
Time of Event 1449
Event Time Zone Mountain Standard Time
Event City LONGMONT
Event State COLORADO
Event Country --
Zipcode of the event site 80501
Event Date Year 1996
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport VANCE BRAND
Event Location Nearest Airport ID 2V2
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport 300
Airport Elevation 5052
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1500 Mountain Standard Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID 2V2
Elevation of weather observation facility 5052
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation MST
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) 0
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 70
Variable Wind Indicator Unknown
Wind Speed (knots) 8
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 Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 171
NTSB Notification Source --
NTSB Notification Date Apr 1 1996 12:00AM
NTSB Notification Time 1515
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 9:56AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N84PS
NTSB Number FTW96LA158
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 STAFFORD
Aircraft Model RV-4
Aircraft Series Identifier RV-4
Aircraft Serial Number 832
Certified Max Gross Weight 1600
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jun 10 1995 12:00AM
Airframe hours since last inspection 98
Airframe Hours 616
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DONALD C. BLESSING
Aircraft Owner Street Address 11717 PINE CREEK COURT
Aircraft Owner City ALEDO
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 76008
Operator is an individual? --
Operator Name WILLIAM J. MANSFIELD
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 101 CANON VIEW ROAD
Operator City BOULDER
Operator State CO
Operator Country
Operator Zip code 80302
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 Yes
Departure Point Same as Event No
Departure Airport Code GXY
Departure City GREELEY
Departure State CO
Departure Country
Departure Time 1425
Departure Time Zone MST
Destination Same as Local Flt crash at destination city
Destination Airport Code 2V2
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 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 11
Runway Length 5130
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --