Aircraft Accident/Incident Report

Hollister, Oklahoma 73551
Tuesady, January 18, 2005 11:28 CST

NTSB Narrative Summary Released at Completion of Accident

A U.S. Air Force twin jet military trainer, a Cessna T-37B, and a single-engine agricultural aircraft, an Air Tractor AT-502B, were destroyed following a midair collision during cruise flight. The training jet was returning to its home military base after a training flight. The training jet had climbed VFR to 5,500 feet msl, and then was instructed to descend to 5,000 feet msl on a 100 degree magnetic heading. After about a minute or less of level flight at 5,000 feet msl, the T-37B impacted the agricultural aircraft which was flying on a heading of about 355 to 005 degrees magnetic. The radar approach control facility that was providing radar services to the T-37B did not have radar recording capability, therefore, no radar track data was available for analysis. Air traffic controllers who were working the T-37B reported seeing the T-37B at 5,000 feet on their radar displays prior to the mid-air collision. The air traffic controllers reported that they did not observe primary radar returns on the AT-502B. The AT-502B was a factory new aircraft that was being ferried to South Dakota. It was not equipped with radios or a transponder. The magnetic heading and altitudes flown by the AT-502B pilot are unknown due to the lack of radar data. The T-37B instructor pilot reported there was an overcast ceiling around 6,000 to 6,500 feet msl, and that the visibility at 5,500 feet msl was about 3 miles due to haze. The VFR cruising altitudes, as prescribed in FAR 91.159, for level cruising flight for 3,000 feet above the surface and below 18,000 feet MSL are as follows: "(1) On a magnetic course of zero degrees through 179 degrees, any odd thousand foot MSL altitude +500 feet (such as 3,500, 5,500, or 7,500); or (2) On a magnetic course of 180 degrees through 359 degrees, any even thousand foot MSL altitude +500 feet (such as 4,500, 6,500, or 8,500)." The airspace at the accident location is designated as Class E airspace. Class E airspace is defined by the Aeronautical Information Manual (AIM) as: "generally, if the airspace is not Class A, Class B, Class D, and it is controlled airspace, it is Class E airspace." No specific pilot certification or specific aircraft equipment is required to fly in Class E airspace. No separation services are provided to VFR aircraft operating in Class E airspace.

NTSB Probable Cause Narrative

The pilots of the T-37B and AT-502B the failed to maintain adequate visual lookout and did not maintain clearance from the other aircraft. Contributing factors included the lack of a transponder and radios on the AT-502B and the reduced visibility due to haze.

Event Information

Type of Event Accident
Event Date 1/18/2005
Event Day of the Week Tuesday
Time of Event 1128
Event Time Zone Central Standard Time
Event City Hollister
Event State OKLAHOMA
Event Country --
Zipcode of the event site 73551
Event Date Year 2005
Event Date Month 1
MidAir Collision Indicator Yes
On Ground Collision occurred ? No
Event Location Latitude 342040N
Event Location Longitude 0984850W
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 Central Standard Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID FDR
Elevation of weather observation facility 1255
Distance of event from weather observation facility (units?) 9
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 5000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 9
Air Temperature at event time (in degrees celsius) 2
Dew Point at event time (in degress fahrenheit) -2
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.53
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 19945
NTSB Notification Source FAA
NTSB Notification Date Jan 18 2005 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 31 2006 10:47AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-Oklahoma City, OK FSDO

Aircraft Involved

Aircraft #1

Aircraft #2

Aircraft Registration Number 66-8003 N8526M
NTSB Number CHI05FA055A CHI05FA055B
Missing Aircraft Indicator -- --
Federal Aviation Reg. Part Armed Forces Part 91: General Aviation
Type of Flight Plan filed IFR None
Flight plan Was Activated? Yes No
Damage Destroyed Destroyed
Aircraft Fire Ground Ground
Aircraft Explosion None Ground
Aircraft Manufacturer's Full Name Cessna Air Tractor
Aircraft Model T-37B AT-502B
Aircraft Series Identifier -- --
Aircraft Serial Number 66-8003 502B-2570
Certified Max Gross Weight 7000 9700
Aircraft Category Airplane Airplane
Aircraft Registration Class -- --
Aircraft is a homebuilt? No No
Flight Crew Seats -- --
Cabin Crew Seats -- --
Passenger Seats -- --
Total number of seats on the aircraft 2 1
Number of Engines 2 1
Fixed gear or retractable gear Retractable Fixed
Aircraft, Type of Last Inspection AAIP Continuous Airworthiness
Date of Last Inspection Jun 1 2004 12:00AM Jan 1 2005 12:00AM
Airframe hours since last inspection 403 0.5
Airframe Hours 17306 2
ELT Installed Yes No
ELT Activated Yes No
ELT Aided Location of Event Site No No
ELT Type -- --
Aircraft Owner Name 89th Flying Training Wing, USAF Frost Flying Service
Aircraft Owner Street Address Sheppard AFB 3393wy 121 West
Aircraft Owner City Wichita Mariane
Aircraft Owner State TX AR
Aircraft Owner Country -- USA
Aircraft Owner Zipcode 76311 72360
Operator is an individual? No No
Operator Name 90th Flying Training Squadron, USAF --
Operator Same as Owner? No Yes
Operator Is Doing Business As -- --
Operator Address Same as Owner? No Yes
Operator Street Address Sheppard Air Force Base --
Operator City Wichita Falls --
Operator State TX --
Operator Country -- --
Operator Zip code 76311 --
Operator Code -- --
Owner has at least one certificate None 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) -- Ferry
Second Pilot on Board Yes No
Departure Point Same as Event No No
Departure Airport Code SPS ONY
Departure City Sheppard AFB Olney
Departure State TX TX
Departure Country USA USA
Departure Time 1022 1100
Departure Time Zone CST CST
Destination Same as Local Flt dest & departure same, accident can occur anywhere --
Destination Airport Code -- HUT
Destination City -- Hutchinson
Destination State -- KS
Destination Country -- USA
Specific Phase of Flight Cruise Cruise
Report sent to ICAO? No No
Evacuation occurred No No
Date of most recent change to record Apr 28 2008 11:55AM Apr 19 2006 8:21AM
User who most recently changed record NTSB\HAMG SULP
Since inspection or accident Time of Accident Time of Accident
Event Location Runway Number and Location NA NA
Runway Length -- --
Runway Width -- --
Sight Seeing flight No No
Air Medical Flight No No
Medical Flight -- --