Individually Owned: 150,657
Corporate Owned: 137,281
Twin Falls Joslin Field Airport
Aircraft Accident/Incident Report
Twin Falls, Idaho 83303
Wednesday, February 16, 2011 8:30 MST
NTSB Narrative Summary Released at Completion of Accident
The pilot was completing multiple check rides in various airplanes that were scheduled over a couple of days. He stated that the wind was too strong the first day to complete the check ride in the accident airplane. On the second day, the pilot and the check airman departed with the wind from 180 degrees at 18 knots, gusting to 22 knots. After completing some air work, they returned for landing, and the wind had increased to 33 knots with gusts to 39 knots. The first landing attempt resulted in a go-around. The pilot successfully landed on the second attempt, and came to a full stop on the runway centerline. However, with the brakes set and the engine idling, the airplane was blown over by a quartering tail wind and came to rest inverted.
NTSB Probable Cause Narrative
The pilot’s failure to compensate for the wind, which resulted in the airplane being blown over after completion of the landing roll.
Event Information
| Type of Event | Accident |
| Event Date | 2/16/2011 |
| Event Day of the Week | Wednesday |
| Time of Event | 830 |
| Event Time Zone | Mountain Standard Time |
| Event City | Twin Falls |
| Event State | IDAHO |
| Event Country | -- |
| Zipcode of the event site | 83303 |
| Event Date Year | 2011 |
| Event Date Month | 2 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 422855N |
| Event Location Longitude | 1142916W |
| Event Location Airport | Twin Falls Joslin Field |
| Event Location Nearest Airport ID | TWF |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 4154 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 853 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | KTWF |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | MST |
| 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) | 18 |
| Dew Point at event time (in degress fahrenheit) | -4 |
| 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) | 25 |
| Altimeter Setting at event time (in. Hg) | 29.45 |
| 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 | 2 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30795 |
| NTSB Notification Source | FAA NWM Operations Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jan 25 2013 10:31AM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7153Z |
| NTSB Number | WPR11LA136 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA18 |
| Aircraft Series Identifier | 150 |
| Aircraft Serial Number | 18-7266 |
| Certified Max Gross Weight | 1750 |
| 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 | Jun 30 2010 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 1850 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | Mike Walker |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Lewiston |
| Aircraft Owner State | MT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 59457 |
| Operator is an individual? | No |
| Operator Name | Mike Walker |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Lewiston |
| Operator State | MT |
| Operator Country | USA |
| Operator Zip code | 59457 |
| Operator Code | YZVA |
| Owner has at least one certificate | Yes - certificate holder |
| 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 | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | TWF |
| Departure City | Twin Falls |
| Departure State | ID |
| Departure Country | USA |
| Departure Time | 750 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | TWF |
| Destination City | Twin Falls |
| Destination State | ID |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 18 2013 12:46PM |
| User who most recently changed record | johb |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 25 |
| Runway Length | 8703 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |