MIA97LA008

NTSB accident investigation · Cessna 21OK · Tampa, FL · October 20, 1996

Accident · Minor injuriesLimited investigationFinal report
Date
October 20, 1996, 10:30 local (14:30 UTC)
Place
Tampa, FL
Injuries
1 minor, 5 uninjured
Phase of flight
Approach
Aircraft
N81SCCessna 21OKN4021TBeech 23
Weather
Visual (VMC) · Day
Status
Completed · report March 31, 1998
Report
Approved by Office Director
Case key
38171

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 NTSB’s determination of the probable cause, and any contributing factors.

The failure of the pilots of both airplanes to see and avoid each other. Contributing to the accident was the improper planning/decision of the pilot of the Cessna 210 to depart the traffic pattern on the downwind leg rather than on the upwind leg as recommended in the AIM, and the improper planning/decision of the pilot of the Beech 23 to enter a 2-mile downwind.

The failure of the pilots of both airplanes to see and avoid each other. Contributing to the accident was the improper planning/decision of the pilot of the Cessna 210 to depart the traffic pattern on the downwind leg rather than on the upwind leg as recommended in the AIM, and the improper planning/decision of the pilot of the Beech 23 to enter a 2-mile downwind.

Analysis

The Cessna 210, N81SC, was planning on departing the traffic pattern on the downwind leg and reportedly announced his takeoff, crosswind and downwind turns. The Beech 23, N4021T, was inbound from the north and announced his intention of a 'long' 2 mile downwind, which was reportedly heard by an employee at the airport. The Cessna was just completing the turn to downwind at 900 feet when the collision occurred. The pilots of both airplanes were able to land at the airport. A witness observed the collision and reported that it occurred about 1/4 mile north and 1/3 mile west of the departure end of runway 36. A component from the Cessna was found in a field located about 1 nautical mile and 322 degrees from the departure end of the runway. The AIM recommends that aircraft depart the traffic pattern either on the upwind leg or turn 45 degrees to the left while in the upwind leg. The recommended downwind entry is at a 45 degree angle abeam the midpoint of the downwind leg.

The Cessna 210, N81SC, was planning on departing the traffic pattern on the downwind leg and reportedly announced his takeoff, crosswind and downwind turns. The Beech 23, N4021T, was inbound from the north and announced his intention of a 'long' 2 mile downwind, which was reportedly heard by an employee at the airport. The Cessna was just completing the turn to downwind at 900 feet when the collision occurred. The pilots of both airplanes were able to land at the airport. A witness observed the collision and reported that it occurred about 1/4 mile north and 1/3 mile west of the departure end of runway 36. A component from the Cessna was found in a field located about 1 nautical mile and 322 degrees from the departure end of the runway. The AIM recommends that aircraft depart the traffic pattern either on the upwind leg or turn 45 degrees to the left while in the upwind leg. The recommended downwind entry is at a 45 degree angle abeam the midpoint of the downwind leg.

Factual narrative

Narrative same as MIA97LA008A.

The factual narrative584 words

On October 20, 1996, about 1030 eastern daylight time, a Cessna 210K, N81SC, privately registered, and a Beech 23, N4021T, registered to the Gasparilla Air Force Flying Club, collided about 1 nautical mile northwest of the Vandenberg Airport, Tampa, Florida. Visual meteorological conditions prevailed at the time and no flight plan was filed for either flight. The commercial-rated pilot and two passengers in the Cessna 210 were not injured. The private-rated pilot of the Beech 23 sustained minor injuries and the two passengers were not injured. The Cessna 210 flight originated about 3 minutes earlier from the Vandenberg Airport. The Beech 23 flight originated about 1015 from the Lakeland Linder Regional Airport, Lakeland, Florida.

The pilot of the Cessna 210 stated that he intended to exit the traffic pattern on the downwind leg and announced on the UNICOM frequency that the flight was departing runway 36. At 500 feet mean sea level the flight turned crosswind and downwind which he also announced and just before leveling off at 850-890 feet, while on a heading of about 190 degrees, he felt the impact. The airplane rolled to the right and he was able to correct the rolling tendency with full left aileron input. The flight continued in the pattern and the pilot landed the airplane with no further damage. The pilot further stated that at no point in time did he observe the other airplane and the strobe lights of his airplane were activated at the time of the collision. No other external lights were activated. Damage to his airplane consisted of damage to the right wing tip and skin damage to the right side of the fuselage about 4 feet forward of the right horizontal stabilizer.

The pilot of the Beech 23 reported that he maneuvered his airplane and announced his entry for a 2 mile downwind for runway 36, which was heard by an employee at the Vandenberg airport. He did not heard any pattern reports from any other pilot and as the flight passed the threshold of runway 18 while at 900 feet, he felt the impact. The airplane initially banked to the right and he pushed the yoke forward to increase the airspeed. He also recognized that the rudder control was inoperative and observed the other airplane flying in a westerly direction. He recovered from the banked attitude and during the landing roll, the airplane was resting on the nose without its nose landing gear. The damage to his airplane consisted of engine, propeller, the left fuselage and wing, inoperative rudder. He further reported that at the time of the collision the strobe lights were activated.

According to a witness, the collision occurred about 1/4 mile north and 1/3 mile west from the departure end of runway 36. The Cessna 210 was observed to turn left crosswind about 1/4 mile from the departure end of the runway, and left downwind about 1/3 mile west of the runway. The Beech 23 was observed flying on the downwind leg at the time of the collision. The right wing tip from the Cessna 210 was located about 1 nautical mile and 322 degrees from the departure end of runway 36.

Review of the Airmans Information Manual (AIM) revealed that the recommended procedures for departing the traffic pattern are to fly runway heading or to turn 45 degrees to the left when in a left traffic pattern. The AIM recommends to enter the downwind at a 45 degree angle abeam the midpoint of the runway.

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.

Midair collisionApproach - vfr pattern - downwind
Visual lookout - inadequatePilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause
In-flight planning/decision - improperPilot in commandFactor
In-flight planning/decision - improperPilot of other aircraftFactor
Midair collisionApproach - vfr pattern - downwind
Visual lookout - inadequatePilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause
In-flight planning/decision - improperPilot in commandFactor
In-flight planning/decision - improperPilot of other aircraftFactor

Aircraft · 2

Registration
N81SC
Reported as
Cessna 21OK
Category
Airplane
Serial number
21059382
Airframe hours
3,767
Engine
Continental IO-520L, 285 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard W. Carr
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 11, 1996 · 48 hours before
Departed
X16
Destination
SPG · St. Petersburg, FL
Airport
X16 · Vandenberg

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
N4021T
Reported as
Beech 23
Category
Airplane
Serial number
M-1128
Airframe hours
2,274
Engine
Lycoming O-360-A26, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gasparilla Air Force Flying
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 1, 1996 · 98 hours before
Departed
LAL · Lakeland, FL
Destination
X16
Airport
X16 · Vandenberg

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 N81SC
Age
39
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
2,681 total · 150 in this make and model · 2,539 as pilot in command · 40 in the last 90 days · 20 in the last 30 days
Role
Pilot, aircraft N4021T
Age
55
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
277 total · 11 in this make and model · 251 as pilot in command · 25 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
50° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 43 °F
Altimeter
29.00 inHg
Observed at
TPA, 9 nm away

FAA reports on this event · 2

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.