Individually Owned: 150,657
Corporate Owned: 137,281
Norman/Univ. Of Oklahoma Airport
Aircraft Accident/Incident Report
Newcastle, Oklahoma 73065
Sunday, December 6, 1998 9:34 CST
NTSB Narrative Summary Released at Completion of Accident
The 4,550-hour pilot received two weather briefings and filed an IFR flight plan for the 152-nautical mile flight. The briefers informed the pilot of Convective SIGMETs, AIRMETS, and a Severe Thunderstorm Watch in effect along the route of flight. Approximately 19 minutes before the accident, a Boeing 737 executed a missed approach after encountering severe turbulence and wind shear during an approach to an airport 12 miles northwest of the accident airplane's destination. The pilot was informed of this encounter by air traffic control. As the flight neared its destination, the pilot was cleared for a localizer approach to runway 03. The airplane was observed on radar about one mile north of the final approach course. The pilot reported that he was not going to be able to continue the approach. When questioned by the tower about his intentions, the pilot replied, 'I am going to stay right here until I get out of some of this.' The wreckage of the twin-engine airplane was located a mile north of the final approach course, about 6 miles southwest of the landing threshold for the runway. Physical evidence and ground signatures at the initial point of impact indicated that the airplane, configured with the landing gear and flaps in the retracted position, impacted the ground on a measured magnetic heading of 342 degrees at a high speed in a nose low attitude in a slight left turn. Examination of weather data revealed that the last radar return from the airplane occurred in the vicinity of a frontal boundary, where strong wind shear and severe turbulence were present.
NTSB Probable Cause Narrative
the pilot's loss of control due to his inadvertent encounter with severe turbulence and wind shear during an instrument approach. Factors contributing to the accident were the severe turbulence and the wind shear.
Event Information
| Type of Event | Accident |
| Event Date | 12/6/1998 |
| Event Day of the Week | Sunday |
| Time of Event | 934 |
| Event Time Zone | Central Standard Time |
| Event City | NEWCASTLE |
| Event State | OKLAHOMA |
| Event Country | -- |
| Zipcode of the event site | 73065 |
| Event Date Year | 1998 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | NORMAN/UNIV. OF OKLAHOMA |
| Event Location Nearest Airport ID | OUN |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 6 |
| Degrees magnetic from airport | 225 |
| Airport Elevation | 1182 |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 925 Central Standard Time |
| Direction of event from weather observation facility (degrees) | 45 |
| Weather Observation Facility ID | OUN |
| Elevation of weather observation facility | 1182 |
| Distance of event from weather observation facility (units?) | 6 |
| Time Zone of the weather observation | CST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 1200 |
| Lowest Non-Ceiling Height | 500 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 18 |
| Dew Point at event time (in degress fahrenheit) | 16 |
| Wind Direction (degrees magnetic) | 320 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 13 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 21 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | 2066 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1985 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Dec 6 1998 12:00AM |
| NTSB Notification Time | 1045 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jul 10 2001 3:41PM |
| User who most recently changed record | MONR |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N1826S |
| NTSB Number | FTW99FA044 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Beech |
| Aircraft Model | 58 |
| Aircraft Series Identifier | 58 |
| Aircraft Serial Number | TH-1280 |
| Certified Max Gross Weight | 5424 |
| 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 | 6 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 2 1998 12:00AM |
| Airframe hours since last inspection | 79 |
| Airframe Hours | 2337 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | JOHN A. SHIPP |
| Aircraft Owner Street Address | 100 NORTH CENTRAL |
| Aircraft Owner City | IDABEL |
| Aircraft Owner State | OK |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 74745 |
| Operator is an individual? | -- |
| 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? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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 | F62 |
| Departure City | IDABEL |
| Departure State | OK |
| Departure Country | |
| Departure Time | 852 |
| Departure Time Zone | CST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | OUN |
| Destination City | NORMAN |
| Destination State | OK |
| Destination Country | |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 3 2001 4:08AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 3 |
| Runway Length | 4747 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |