Aircraft Incident/Accident Report
Provo Municipal Airport

Provo, Utah 84601
Tuesady, March 19, 2002 13:55 MST

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NTSB Narrative Summary Released at Completion of Accident
According to the instructor, the landing gear failed to fully retract after takeoff. He stated that after lift-off, and with "no more usable runway," we "retracted the landing gear, looking for a green light gear indicator." The light did not come on. He looked outside at the mirror on the left main tank and identified the "gear malfunction." They continued the local flight to burn off excess fuel and then made a precautionary landing at Provo. During the landing roll, the nose landing gear collapsed. The airplane sustained substantial damage to the left and right forward nose landing gear well former (keel beam) assemblies. The manufacturer states that the Cessna 310B, is equipped with a landing gear position light system. Two landing gear position lights are provided, one above and one below the landing gear switch. The "upper light is red, and is on at all times when the gear is retracted." The "lower light is green, and illuminates only when the landing gear is fully extended and locked." If the landing gear is not fully extended and locked, the green light will not illuminate, and if neither light is on, the landing gear is in an intermediate position.
NTSB Probable Cause Narrative
Failure of the nose landing gear retraction/extension assembly for an undetermined reason, which resulted in collapse of the nose landing gear on landing.
Event Information
Type of EventAccident 
Event Date3/19/2002 
Event Day of the WeekTuesday 
Time of Event1355 
Event Time ZoneMountain Standard Time 
Event CityProvo 
Event StateUTAH 
Event Country-- 
Zipcode of the event site84601 
Event Date Year2002 
Event Date Month
MidAir Collision IndicatorNo 
On Ground Collision occurred ?No 
Event Location Latitude401313N 
Event Location Longitude1114340W 
Event Location AirportProvo Municipal 
Event Location Nearest Airport IDPVU 
Indicates whether the acc/inc occurred off or on an airportOn Airport 
Distance from airport in statute miles-- 
Degrees magnetic from airport-- 
Airport Elevation4497 
Weather Briefing CompletenessUnknown 
Investigator's weather sourceWeather Observation Facility 
Time of the weather observation1355 Mountain Daylight Time 
Direction of event from weather observation facility (degrees)-- 
Weather Observation Facility IDKPVU 
Elevation of weather observation facility4494 
Distance of event from weather observation facility (units?)-- 
Time Zone of the weather observationMDT 
Lighting ConditionsDay 
Lowest Ceiling Height-- 
Lowest Non-Ceiling Height-- 
Sky/Lowest/Cloud ConditionsClear 
Sky Condition for Lowest CeilingNone 
Visibility Runway Visual Range (Feet)-- 
Visibility Runway Visual Value (Statute Miles)-- 
Visibility (Statute Miles) 10 
Air Temperature at event time (in degrees celsius)
Dew Point at event time (in degress fahrenheit)-8 
Wind Direction (degrees magnetic)270 
Variable Wind IndicatorWind direction could be determined 
Wind Speed (knots)
Wind Velocity Indicator -- 
Wind Gust IndicatorNot Gusting 
Wind Gust (knots) -- 
Altimeter Setting at event time (in. Hg) 30.26 
Density Altitude (feet)4054 
Intensity of Precipitation-- 
METAR weather report -- 
Event Highest InjuryNone 
On Ground, Fatal Injuries-- 
On Ground, Minor Injuries-- 
On Ground, Serious Injuries-- 
Injury Total Fatal-- 
Injury Total Minor-- 
Injury Total None
Injury Total Serious-- 
Injury Total All-- 
Investigating AgencyNTSB 
NTSB Docket Number (internal use)12745 
NTSB Notification SourceFAA COMM CTR  
NTSB Notification DateMar 19 2002 12:00AM 
NTSB Notification Time1724 
Fiche Number and/or location -used to find docket informationDMS 
Date of most recent change to recordApr 1 2003 4:20PM 
User who most recently changed recordNTSB\MONR  
Basic weather conditionsVisual Meteorological Cond 
FAA District OfficeSalt Lake City FSDO 
Aircraft Involved
Aircraft #1
Aircraft Registration NumberN5381A 
NTSB NumberDEN02LA035 
Missing Aircraft Indicator-- 
Federal Aviation Reg. PartPart 91: General Aviation 
Type of Flight Plan filedNone 
Flight plan Was Activated?No 
Aircraft FireNone 
Aircraft ExplosionNone 
Aircraft Manufacturer's Full NameCessna 
Aircraft Model310B 
Aircraft Series Identifier-- 
Aircraft Serial Number35581 
Certified Max Gross Weight4700 
Aircraft CategoryAirplane 
Aircraft Registration ClassU.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
Number of Engines
Fixed gear or retractable gearRetractable 
Aircraft, Type of Last Inspection100 Hour 
Date of Last InspectionNov 21 2001 12:00AM 
Airframe hours since last inspection98.8 
Airframe Hours4538.3 
ELT InstalledYes 
ELT ActivatedNo 
ELT Aided Location of Event SiteNo 
ELT Type-- 
Aircraft Owner NameTwin C Enterprises, L.L.C. 
Aircraft Owner Street Address110 N 500 E  
Aircraft Owner CityProvo 
Aircraft Owner StateUT 
Aircraft Owner CountryUSA  
Aircraft Owner Zipcode84606 
Operator is an individual?No 
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 certificateNone 
Other Operator of large aircraft?-- 
Certified for Part 133 or 137 Operation-- 
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)Instructional 
Second Pilot on BoardYes 
Departure Point Same as EventYes 
Departure Airport CodePVU  
Departure CityProvo 
Departure StateUT 
Departure CountryUSA 
Departure Time1130 
Departure Time Zone-- 
Destination Same as Local Fltdest & departure same, accident can occur anywhere 
Destination Airport CodePVU  
Destination CityProvo 
Destination StateUT 
Destination CountryUSA 
Specific Phase of FlightLanding - roll 
Report sent to ICAO?-- 
Evacuation occurredNo 
Date of most recent change to recordDec 10 2002 12:21PM 
User who most recently changed recordMCBM  
Since inspection or accident-- 
Event Location Runway Number and Location18 
Runway Length6937 
Runway Width150 
Sight Seeing flightNo 
Air Medical FlightNo 
Medical Flight--