Individually Owned: 150,657
Corporate Owned: 137,281
Centennial Airport
Aircraft Accident/Incident Report
Englewood, Colorado 80110
Monday, August 14, 1995 8:42 MDT
NTSB Narrative Summary Released at Completion of Accident
DURING TAKEOFF ON A MOUNTAIN FLYING INSTRUCTIONAL FLIGHT, THE AIRCRAFT (WITH A FLIGHT INSTRUCTOR & 2 PILOTS ABOARD) LIFTED OFF ABOUT HALFWAY DOWN THE 4903' RUNWAY. HOWEVER, AFTER LIFT-OFF, IT FAILED TO CLIMB SUFFICIENTLY TO CLEAR THE PERIMETER FENCE, WHICH WAS ON HIGHER TERRAIN ABOUT 1560' FROM THE RUNWAY. THE FENCE WAS AT AN ELEVATION OF ABOUT 60' ABOVE THE END OF THE RUNWAY. THE AIRPLANE CAME TO REST IN A FIELD ABOUT 140' FROM THE FENCE. NO AIRCRAFT OR SYSTEM FAILURE OR MALFUNCTION WAS FOUND. THERE WAS EVIDENCE THAT THE FUEL BOOST PUMP WAS ON DURING TAKEOFF (ALTHOUGH THE ENGINE DRIVEN PUMP WAS OPERATING NORMALLY). DURING A TEST RUN, THE ENGINE OPERATED NORMALLY WITH THE BOOST PUMP OFF. WITH THE BOOST PUMP AT LOW BOOST, THERE WAS A 500 TO 700 RPM LOSS OF RPM; AT HIGH BOOST, THE ENGINE QUIT RUNNING. THE LOCATION AND DESIGN OF THE BOOST PUMP SWITCH WAS NON-STANDARD HAVING BEEN MOVED DURING AN STC AIRCRAFT ALTERATION. THE SWITCH WAS LOCATED NEXT TO THE THROTTLE, WHERE IT COULD BE INADVERTENTLY OPERATED, AND IT HAD NO SAFEGUARD TO PREVENT SUCH OPERATION. INVESTIGATION ALSO REVEALED THAT THERE WERE NO LEANING PROCEDURES INCORPORATED IN THE PILOT MANUAL. THE INSTRUCTOR (CFI) HAD BRIEFED THE PILOTS TO LEAN THE ENGINE BY USING THE RPM. THE MANUFACTURER REPORTED THAT THE ENGINE COULD NOT BE PROPERLY LEANED BY USING THE RPM GAUGE, SINCE IT WAS EQUIPPED WITH A CONSTANT SPEED PROPELLER.
NTSB Probable Cause Narrative
INADVERTENT ACTIVATION OF THE FUEL BOOST PUMP BY EITHER THE PILOT (WHO WAS BEING INSTRUCTED) OR BY THE FLIGHT INSTRUCTOR (CFI). FACTORS RELATING TO THE ACCIDENT WERE: THE BRIEFING OF IMPROPER LEANING PROCEDURES BY THE CFI, LOCATION OF THE BOOST PUMP SWITCH NEXT TO THE THROTTLE WITHOUT A SAFEGUARD TO PREVENT ITS INADVERTENT OPERATION, AND THE CFI'S LACK OF FAMILIARITY WITH THIS AIRPLANE.
Event Information
| Type of Event | Accident |
| Event Date | 8/14/1995 |
| Event Day of the Week | Monday |
| Time of Event | 842 |
| Event Time Zone | Mountain Daylight Time |
| Event City | ENGLEWOOD |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 80110 |
| Event Date Year | 1995 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | CENTENNIAL |
| Event Location Nearest Airport ID | APA |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 5883 |
| Weather Briefing Completeness | Partial - limited by pilot |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 845 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 280 |
| Weather Observation Facility ID | APA |
| Elevation of weather observation facility | 5883 |
| Distance of event from weather observation facility (units?) | 2 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 12000 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 40 |
| Air Temperature at event time (in degrees celsius) | 17 |
| Dew Point at event time (in degress fahrenheit) | 12 |
| Wind Direction (degrees magnetic) | 100 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 7000 |
| 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 | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1228 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 14 1995 12:00AM |
| NTSB Notification Time | 915 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 7 2000 4:30PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8344D |
| NTSB Number | FTW95LA340 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | VFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | BEECH |
| Aircraft Model | J35 |
| Aircraft Series Identifier | J35 |
| Aircraft Serial Number | D-5448 |
| Certified Max Gross Weight | 2800 |
| 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 | Aug 5 1995 12:00AM |
| Airframe hours since last inspection | 64 |
| Airframe Hours | 5348 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | ARTHUR W. STEWART |
| Aircraft Owner Street Address | 8910 OLD SAPPINGTON ROAD |
| Aircraft Owner City | CRESTWOOD |
| Aircraft Owner State | MO |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 63126 |
| Operator is an individual? | -- |
| Operator Name | CANDICE A. STEWART |
| Operator Same as Owner? | No |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | APA |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 840 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | LXV |
| Destination City | LEADVILLE |
| Destination State | CO |
| Destination Country | |
| Specific Phase of Flight | Takeoff |
| 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 | 10 |
| Runway Length | 4903 |
| Runway Width | 62 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |