- Date
- February 25, 2009, 16:17 local (22:17 UTC)
- Place
- Johnson County Exec Airport, KS
- Injuries
- 3 uninjured
- Phase of flight
- Prior to flight
- Defining events
- Prior to flight: Ground collisionPrior to flight: Ground collision
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 13, 2009
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA
- FAA reports
- 20090225004329A20090225004399A
- Case key
- 73412
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
Failure of the pilot of the Cessna 172S to ensure the taxiway was clear prior to initiating the turn. Contributing to the accident was the failure of the pilot of the Cessna 172N to obtain taxi clearance prior to entering the movement area.
The failure of the private pilot to see and avoid the student pilot's airplane, and the failure of the student pilot to avoid the approaching airplane. Contributing to the accident was the failure of the student pilot to obtain taxi clearance.
Findings · 6
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
N734WD · Cessna 172N
N5258Y · Cessna 172S
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
N734WD · Cessna 172N
N5258Y · Cessna 172S
Analysis
Two airplanes were taxiing to the run up area of the airfield. A Cessna 172N, piloted by a student pilot, had departed a terminal ramp without obtaining proper clearance and was taxiing down the parallel taxiway. A Cessna 172S, piloted by a private pilot, had been cleared to taxi and crossed the active runway. The private pilot had his attention diverted to the run up area to his left, did not look right as he approached the parallel taxiway, and did not see the 172N. The student pilot saw the 172S as she taxied, but thought the other plane would stop and did not take any action to avoid the other airplane. The 172S collided with the 172N resulting in substantial damage to the 172N. The tower controller was monitoring a different area of the airfield and did not see the converging airplanes.
Two airplanes were taxiing to the run up area of the airfield. A Cessna 172N, piloted by a student pilot, had departed a terminal ramp without obtaining proper clearance and was taxiing down the parallel taxiway. A Cessna 172S, piloted by a private pilot, had been cleared to taxi and crossed the active runway. The private pilot had his attention diverted to the run up area to his left, did not look right as he approached the parallel taxiway, and did not see the 172N. The student pilot saw the 172S as she taxied, but thought the other plane would stop and did not take any action to avoid the other airplane. The 172S collided with the 172N resulting in substantial damage to the 172N. The tower controller was monitoring a different area of the airfield and did not see the converging airplanes.
Factual narrative
On February 25, 2009, about 1617 central standard time, a Cessna 172S airplane, N5258Y, piloted by a private pilot, and a Cessna 172N, N734WD, piloted by a student pilot, collided during taxi operations at Johnson County Executive Airport (OJC), Olathe, Kansas. Neither the private pilot or passenger in the 172S or the student pilot in the 172N were injured. The 172S received minor damage and the 172N was substantially damaged. Both personal flights were being conducted under the provisions of Title 14 Code of Federal Regulations Part 91 without flight plans. Visual meteorological conditions prevailed at the time of the accident. Both local flights were originating at the time of the accident. The 172S airplane was occupied by a private pilot and a non-rated passenger. The private pilot received clearance to taxi from the tower controller and proceeded from the east parking ramp south on taxiway Bravo to taxiway Juliet. Taxiway Juliet crossed runway 18/36 and connected to taxiway Alpha. At taxiway Juliet, the private pilot was instructed to hold short of runway 36 for arriving traffic. After receiving clearance, the private pilot crossed the runway. When the 172S was approaching the intersection of taxiway Juliet and Alpha, the pilot diverted his attention to the run-up area of runway 36 to observe how many airplanes were performing run-ups. As he started the turn, the 172S impacted the left side of 172N. Neither the private pilot or his passenger reported seeing the 172N prior to impact. The 172N was occupied by a solo student pilot. The student pilot had completed a dual instruction ride and landed on Runway 36. She taxied clear of the runway on a midfield taxiway, where air traffic control (ATC) transcripts show she requested and received clearence to taxi to Runway 36 via Taxiway A. She then stopped on the taxiway and her certified flight instructor (CFI) got out of the airplane to allow her to continue for a solo flight. The tower controller contacted her and informed her the CFI could not exit the airplane on the taxiway. The CFI returned to the airplane and the 172N was cleared by the tower controller to taxi to the parking ramp. The student pilot then taxied north on Taxiway A to the west parking ramp. The student pilot reported that her CFI informed her that she "was clear to continue up the taxiway." The CFI deplaned and the student pilot taxied south on taxiway Alpha without obtaining a new taxi clearence from the tower controller. She said she saw 172S on the connecting taxiway prior to impact, but thought it was going to stop. According to FAA investigators, there was a single tower controller on duty at the time of the accident. He was not aware the 172N was taxiing south on taxiway Alpha and was following aircraft activity on a different area of the airfield at the time of the accident. Examination of the 172N revealed a propeller strike to the left wing spar, a bent left horizontal stabilizer, and a bent fuselage tail cone.
On February 25, 2009, about 1617 central standard time, a Cessna 172S airplane, N5258Y, piloted by a private pilot, and a Cessna 172N, N734WD, piloted by a student pilot, collided during taxi operations at Johnson County Executive Airport (OJC), Olathe, Kansas. Neither the private pilot or passenger in the 172S or the student pilot in the 172N were injured. The 172S received minor damage and the 172N was substantially damaged. Both personal flights were being conducted under the provisions of Title 14 Code of Federal Regulations Part 91 without flight plans. Visual meteorological conditions prevailed at the time of the accident. Both local flights were originating at the time of the accident. The 172S airplane was occupied by a private pilot and a non-rated passenger. The private pilot received clearance to taxi from the tower controller and proceeded from the east parking ramp south on taxiway Bravo to taxiway Juliet. Taxiway Juliet crossed runway 18/36 and connected to taxiway Alpha. At taxiway Juliet, the private pilot was instructed to hold short of runway 36 for arriving traffic. After receiving clearance, the private pilot crossed the runway. When the 172S was approaching the intersection of taxiway Juliet and Alpha, the pilot diverted his attention to the run-up area of runway 36 to observe how many airplanes were performing run-ups. As he started the turn, the 172S impacted the left side of 172N. Neither the private pilot or his passenger reported seeing the 172N prior to impact. The 172N was occupied by a solo student pilot. The student pilot had completed a dual instruction ride and landed on Runway 36. She taxied clear of the runway on a midfield taxiway, where air traffic control (ATC) transcripts show she requested and received clearence to taxi to Runway 36 via Taxiway A. She then stopped on the taxiway and her certified flight instructor (CFI) got out of the airplane to allow her to continue for a solo flight. The tower controller contacted her and informed her the CFI could not exit the airplane on the taxiway. The CFI returned to the airplane and the 172N was cleared by the tower controller to taxi to the parking ramp. The student pilot then taxied north on Taxiway A to the west parking ramp. The student pilot reported that her CFI informed her that she "was clear to continue up the taxiway." The CFI deplaned and the student pilot taxied south on taxiway Alpha without obtaining a new taxi clearence from the tower controller. She said she saw 172S on the connecting taxiway prior to impact, but thought it was going to stop. According to FAA investigators, there was a single tower controller on duty at the time of the accident. He was not aware the 172N was taxiing south on taxiway Alpha and was following aircraft activity on a different area of the airfield at the time of the accident. Examination of the 172N revealed a propeller strike to the left wing spar, a bent left horizontal stabilizer, and a bent fuselage tail cone.
Aircraft · 2
- Registration
- N734WD
- Reported as
- Cessna 172N
- Category
- Airplane
- Serial number
- 17269165
- Engine
- Lycoming O-320 SERIES, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Registration Pending
- Registered owner
- Registration Pending
- Airworthiness certificate
- Standard, Normal
- Departed
- OJC · Johnson County Exec Airport, KS
- Destination
- OJC · Johnson County Exec Airport, KS
- Flight plan
- Unknown
- Airport
- OJC · Johnson County Executive Airpo, runway 36, 4,098 × 75 ft, concrete
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
- N5258Y
- Reported as
- Cessna 172S
- Category
- Airplane
- Serial number
- 172S9141
- Airframe hours
- 3,437
- Engine
- Lycoming IO-360-L2A, 180 horsepower, reciprocating
- Damage
- Minor damage
- Flight
- Personal · Part 91
- Operator
- T&C Aviation Enterprises Inc DBA, doing business as Air Associates of Kansas
- Registered owner
- T&C Aviation Enterprises Inc DBA
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · December 31, 2008
- Departed
- OJC · Johnson County Exec Airport, KS
- Destination
- OJC · Johnson County Exec Airport, KS
- Airport
- OJC · Johnson County Executive Airpo, runway 36, 4,098 × 75 ft, concrete
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
- Student pilot, aircraft N734WD
- Age
- 18
- Injuries
- None
- Certificate
- Student
- Medical
- Class 3, With waivers/limitations
- Seat
- Left
- Flight hours
- 20 total · 20 in this make and model
- Role
- Pilot, aircraft N5258Y
- Age
- 66
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Without waivers/limitations
- Last flight review
- February 20, 2008
- Seat
- Left
- Flight hours
- 478 total · 303 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 39 °F
- Altimeter
- 29.98 inHg
- Observed at
- OJC
Docket · 8
The files NTSB released with the investigation on June 15, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.1 MB in all.
FAA reports on this event · 2
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N734WD · 1
Matched to the same aircraft by N-number and date.