Individually Owned: 150,657
Corporate Owned: 137,281
Sully Municipal Airport
Aircraft Accident/Incident Report
Sully, Iowa 50251
Tuesady, May 31, 2011 8:45 CDT
NTSB Narrative Summary Released at Completion of Accident
The pilot and his passenger were taking off on a 2,130-foot turf runway. During the takeoff, the airplane lifted off, remained in ground effect, veered to the left, and then settled back onto the runway where it subsequently impacted a sign and a tree. Postaccident examination of the engine revealed that two of the No. 4 cylinder’s three piston compression rings had fractured but remained intact. Since two rings were intact and the third ring was not fractured, compression in the cylinder should not have been substantially reduced. Postaccident computations of ground roll distance showed that the acceleration achieved during the accident takeoff roll was almost equal to that of the airplane's expected performance on hard-surface runways, indicating that there was not a substantial decrease in available propulsive thrust at the time of takeoff. Federal Aviation Administration guidance recommends that pilots ensure that runway length is equal to the aircraft manufacturer's published takeoff or landing distance plus an 80 percent safety margin for takeoffs on a hard surface and double the manual distance for takeoffs on sod.
NTSB Probable Cause Narrative
The pilot’s failure to attain an adequate climb rate during the initial takeoff, resulting in the airplane settling back down and departing the runway. Contributing to the accident was the pilot's inadequate preflight planning and preparation.
Event Information
| Type of Event | Accident |
| Event Date | 5/31/2011 |
| Event Day of the Week | Tuesday |
| Time of Event | 845 |
| Event Time Zone | Central Daylight Time |
| Event City | Sully |
| Event State | IOWA |
| Event Country | -- |
| Zipcode of the event site | 50251 |
| Event Date Year | 2011 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 413427n |
| Event Location Longitude | 0925048w |
| Event Location Airport | Sully Municipal Airport |
| Event Location Nearest Airport ID | 8C2 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 922 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 915 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 315 |
| Weather Observation Facility ID | TNU |
| Elevation of weather observation facility | 953 |
| Distance of event from weather observation facility (units?) | 9 |
| 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) | 24 |
| Dew Point at event time (in degress fahrenheit) | 21 |
| Wind Direction (degrees magnetic) | 190 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 28 |
| Altimeter Setting at event time (in. Hg) | 29.79 |
| 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) | 30057 |
| NTSB Notification Source | FAA-ACE-ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Sep 27 2012 12:00PM |
| User who most recently changed record | broda |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7818F |
| NTSB Number | CEN11LA366 |
| 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 | 150F |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 150-63918 |
| Certified Max Gross Weight | 1600 |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Mar 14 2011 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 3783 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | Pilot |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Altoona |
| Aircraft Owner State | IA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 50009 |
| Operator is an individual? | No |
| Operator Name | Pilot |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Altoona |
| Operator State | IA |
| Operator Country | USA |
| Operator Zip code | 50009 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| 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 | Yes |
| Departure Airport Code | 8C2 |
| Departure City | Sully |
| Departure State | IA |
| Departure Country | USA |
| Departure Time | 845 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | PEA |
| Destination City | Pella |
| Destination State | IA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 13 2012 2:24PM |
| User who most recently changed record | broda |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 08 |
| Runway Length | 2130 |
| Runway Width | 120 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |