- Date
- July 31, 1991, 07:59 local (12:59 UTC)
- Place
- Silica, KS
- Injuries
- 2 fatal
- Phase of flight
- Maneuvering
- Weather
- Visual (VMC) · Day
- Status
- Completed · report March 31, 1993
- Report
- Approved by Office Director
- FAA reports
- 19910731030772A19910731030771A
- Case key
- 14912
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The failure of both pilots to maintain adequate separation during formation flight. Related factors are overconfidence in personal ability and poor planning/decision.
The failure of both pilots to maintain adequate separation during formation flight. Related factors are overconfidence in personal ability and poor planning/decision.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
Both aircraft departed wichita on IFR flight plans in VFR weather conditions. They flew northwest toward their respective destinations, and cancelled IFR about 20 minutes before the accident. ATC observed the airplanes on radar, and stated they were 'dogfighting back and forth' prior to the collision. One pilot's roommate reported the two pilots, who were close friends as well as co-workers, often cancelled IFR and flew in formation if the weather was VFR. He reported the pilots often videotaped each other, and he had watched some of the tapes. He stated 'it was hard to tell from the videotape how close they were because they could use the zoom feature, etc. You could read the n numbers.' Investigation revealed brown paint transfer on the bottom of the right wing of the blue and white airplane, which had separated and was located 1.5 miles from the main wreckage. There were light colored scuff marks on the top of the left engine nacelle of the brown and white airplane.
Both aircraft departed wichita on IFR flight plan in VFR weather conditions. They flew northwest toward their respective destinations, and cancelled IFR about 20 minutes before the accident. ATC observed the airplanes on radar, and stated they were 'dogfighting back and forth' prior to the collision. One pilot's roommate reported the two pilots, who were close friends as well as co-workers, often cancelled IFR and flew in formation if the weather was VFR. He reported the pilots often videotaped each other, and he had watched some of the tapes. He stated 'it was hard to tell from the videotape how close they were because they could use the zoom feature, etc. You could read the n numbers.' Investigation revealed brown paint transfer on the bottom of the right wing of the blue and white airplane, which had separated and was located 1.5 miles from the main wreckage. There were light colored scuff marks on the top of the left engine nacelle of the brown and white airplane.
Aircraft · 2
- Registration
- N904DF
- Reported as
- Aero Commander 500B
- Category
- Airplane
- Serial number
- 1057-46
- Airframe hours
- 11,546
- Engine
- Lycoming IO-540-E1A5, 290 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Part 135
- Operator
- Dewey E. Tower, doing business as Central Air Southwest
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · June 10, 1991 · 63 hours before
- Departed
- ICT · Wichita, KS
- Destination
- HYS · Hays, KS
- Flight plan
- Unknown
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
- Registration
- N702CA
- Reported as
- Aero Commander 500B
- Category
- Airplane
- Serial number
- 1298-113
- Airframe hours
- 12,747
- Engine
- Lycoming IO-540-E1A5, 290 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Part 135
- Operator
- Dewey E. Tower, doing business as Central Air Southwest
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · July 12, 1991 · 14 hours before
- Departed
- ICT · Wichita, KS
- Destination
- GBD · Great Bend, KS
- Flight plan
- Unknown
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot, aircraft N904DF
- Age
- 35
- Certificates
- Flight instructor, Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Toxicology
- Performed
- Flight hours
- 3,358 total · 724 in this make and model · 3,358 as pilot in command · 143 in the last 90 days · 48 in the last 30 days · 4 in the last 24 hours
- Role
- Pilot, aircraft N702CA
- Age
- 26
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Left
- Toxicology
- Performed
- Flight hours
- 1,590 total · 322 in this make and model · 1,590 as pilot in command · 73 in the last 90 days · 22 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 15 statute miles
- Lowest ceiling
- None
- Temperature
- 79 °F
FAA reports on this event · 2
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.