Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Silver Bow, Montana 59701
Monday, August 15, 2011 11:30 MDT
NTSB Narrative Summary Released at Completion of Accident
The operator stated that the flight instructor indicated that the purpose of the instructional flight was to have the student conduct a series of touch-and-go landings before proceeding to the training area where he intended on having the student practice steep turns, turns around a point, and holding a level altitude. A witness located near the accident site reported seeing the airplane flying in a clockwise horizontal circle with the wings almost vertical, while slowly losing altitude. The airplane appeared to be attempting to straighten out and climb when it then went straight down in a nosedive. A second witness observed the airplane spinning to the right before descending. The witness reported that before losing sight of the airplane, it appeared to be pulling up. Wreckage and impact signatures were consistent with a right wing low and nose low impact. Postaccident examination of the airframe, flight control system, and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation. From the witness observations, it is likely that the airplane entered a spin and the pilot was not able to regain control. It could not be determined who was at the flight controls at the time of the accident.
NTSB Probable Cause Narrative
The pilot's failure to maintain airplane control while maneuvering.
Event Information
| Type of Event | Accident |
| Event Date | 8/15/2011 |
| Event Day of the Week | Monday |
| Time of Event | 1130 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Silver Bow |
| Event State | MONTANA |
| Event Country | -- |
| Zipcode of the event site | 59701 |
| Event Date Year | 2011 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 460010N |
| Event Location Longitude | 1123934W |
| 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 | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1153 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 180 |
| Weather Observation Facility ID | DLN |
| Elevation of weather observation facility | 5241 |
| Distance of event from weather observation facility (units?) | 44 |
| Time Zone of the weather observation | MDT |
| 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) | 26 |
| Dew Point at event time (in degress fahrenheit) | 7 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.9 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KDLN 151753Z AUTO VRB03KT 10SM CLR 26/07 A29 |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 2 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30940 |
| NTSB Notification Source | FAA 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 | Feb 26 2013 9:42AM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N2584N |
| NTSB Number | WPR11FA383 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| 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 | PA-38-112 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 38-79A0931 |
| Certified Max Gross Weight | 1670 |
| 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 | Apr 29 2011 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 1874 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | JJ Aviation |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Butte |
| Aircraft Owner State | MT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 59702 |
| Operator is an individual? | No |
| Operator Name | JJ Aviation |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Butte |
| Operator State | MT |
| Operator Country | USA |
| Operator Zip code | 59702 |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | BTM |
| Departure City | Butte |
| Departure State | MT |
| Departure Country | USA |
| Departure Time | 1030 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | BTM |
| Destination City | Butte |
| Destination State | MT |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 25 2013 6:03PM |
| User who most recently changed record | stam |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |