Individually Owned: 151,845
Corporate Owned: 143,699
Boulder Municipal Airport
Aircraft Accident/Incident Report
Boulder, Colorado 80301
Wednesday, September 14, 2005 15:45 MDT
NTSB Narrative Summary Released at Completion of Accident
On the final approach leg, the airplane encountered "light to moderate" turbulence and the airspeed "dropped." The pilot stated that the airplane touched down on the right main landing gear and the airplane proceeded to bounce. Both main gears touched down on the wet runway and the airplane drifted from left to right. The airplane became airborne and "turned approximately 10 to 15 degrees to the right and almost instantly set back down on the runway." The pilot said he applied full right aileron and full left rudder and the airplane turned sharply to the right causing the left wing to scrape on the tarmac. The airplane exited the right side if the runway and came to rest oriented at a 90 degree angle to the runway approximately 30 feet from the edge of the runway. According to a pilot who witnessed the accident, he said the airplane landed with a "tailwind."
NTSB Probable Cause Narrative
the pilot's improper flare which resulted in a hard landing and his subsequent failure to recover from the bounced landing. Contributing factors were the pilot's improper in-flight decision to land in deteriorating weather conditions, turbulence associated with thunderstorms, tailwind, and the wet runway.
Event Information
| Type of Event | Accident |
| Event Date | 9/14/2005 |
| Event Day of the Week | Wednesday |
| Time of Event | 1545 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Boulder |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 80301 |
| Event Date Year | 2005 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 400222N |
| Event Location Longitude | 1051333W |
| Event Location Airport | Boulder Municipal Airport |
| Event Location Nearest Airport ID | 1V5 |
| 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 | 5288 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1545 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 120 |
| Weather Observation Facility ID | BJC |
| Elevation of weather observation facility | 5670 |
| Distance of event from weather observation facility (units?) | 9 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 6000 |
| Lowest Non-Ceiling Height | 6000 |
| Sky/Lowest/Cloud Conditions | Thin Broken |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 20 |
| Air Temperature at event time (in degrees celsius) | 12 |
| Dew Point at event time (in degress fahrenheit) | 5 |
| Wind Direction (degrees magnetic) | 180 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 18 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 22 |
| Altimeter Setting at event time (in. Hg) | 30.1 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 19339 |
| NTSB Notification Source | FAA Comm Ctr |
| NTSB Notification Date | Sep 16 2005 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Mar 28 2006 1:55PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Denver, Colorado |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N4807 |
| NTSB Number | DEN05LA140 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | A185F |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 18503532 |
| Certified Max Gross Weight | 3350 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| 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 | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Oct 1 2004 12:00AM |
| Airframe hours since last inspection | 176.6 |
| Airframe Hours | 6053.9 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | G-4 Air LLC. |
| Aircraft Owner Street Address | 3509 Meadowbrook Road |
| Aircraft Owner City | Birmingham |
| Aircraft Owner State | AL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 35242 |
| Operator is an individual? | No |
| Operator Name | Michael C. Gerhardt |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | On File |
| Operator City | Birmingham |
| Operator State | AL |
| Operator Country | USA |
| Operator Zip code | 35242 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | SGF |
| Departure City | Springfield |
| Departure State | MO |
| Departure Country | USA |
| Departure Time | 1110 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | 1V5 |
| Destination City | Boulder |
| Destination State | CO |
| Destination Country | USA |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Dec 22 2005 10:26AM |
| User who most recently changed record | MCBM |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 08 |
| Runway Length | 4100 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |