Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Olney, Texas 76374
Thursday, April 14, 2005 12:30 CDT
NTSB Narrative Summary Released at Completion of Accident
The 833.9-hour pilot reported that while flying a pipeline patrol mission, he noticed that the engine was starting to lose power. As the airspeed decayed, he applied carburetor heat and noticed the engine was not running rough. The pilot pushed the carburetor heat back in, and noted that the engine was still losing power. At an altitude of approximately 200 feet above ground level, the pilot initiated a forced landing to a nearby field. During the landing roll, the nose gear dug into terrain and the airplane nosed over. No mechanical anomalies were noted with the engine or airframe. Approximately 24 minutes prior to the time of the accident, the weather observation at an airport located 16 miles from the accident site reported temperature 68 degrees Fahrenheit and dew point 45 degrees Fahrenheit. According to information on a Carburetor Icing Probability Chart at the operating temperature/dew point, the airplane was within the "moderate icing - cruise power or serious icing - glide power" range.
NTSB Probable Cause Narrative
The loss of engine power due to carburetor ice. Contributing factors were the weather conditions conducive for carburetor icing and the lack of suitable terrain for a forced landing.
Event Information
| Type of Event | Accident |
| Event Date | 4/14/2005 |
| Event Day of the Week | Thursday |
| Time of Event | 1230 |
| Event Time Zone | Central Daylight Time |
| Event City | Olney |
| Event State | TEXAS |
| Event Country | -- |
| Zipcode of the event site | 76374 |
| Event Date Year | 2005 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 332103N |
| Event Location Longitude | 0984909W |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1206 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 137 |
| Weather Observation Facility ID | RPH |
| Elevation of weather observation facility | 1123 |
| Distance of event from weather observation facility (units?) | 19 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 20 |
| Dew Point at event time (in degress fahrenheit) | 7 |
| Wind Direction (degrees magnetic) | 60 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.18 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 17947 |
| NTSB Notification Source | FAA Operations Center |
| NTSB Notification Date | Apr 15 2005 12:00AM |
| NTSB Notification Time | 700 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jul 7 2005 10:33AM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Forth Worth, Texas |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N733UV |
| NTSB Number | DFW05LA103 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Cessna |
| Aircraft Model | 172N |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 17268567 |
| Certified Max Gross Weight | 2300 |
| 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 | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jan 2 2005 12:00AM |
| Airframe hours since last inspection | 62.3 |
| Airframe Hours | 15293.3 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | LH Underwood and Son Aerial Patrol |
| Aircraft Owner Street Address | PO Box 458 |
| Aircraft Owner City | Guthrie |
| Aircraft Owner State | OK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 73044 |
| 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 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) | Aerial Observation |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | F14 |
| Departure City | Iowa Park |
| Departure State | TX |
| Departure Country | USA |
| Departure Time | 1140 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | -- |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Maneuvering |
| Report sent to ICAO? | No |
| Evacuation occurred | Yes |
| Date of most recent change to record | May 4 2005 5:00PM |
| User who most recently changed record | CASH |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |