MIA89FA253

NTSB accident investigation · Cessna 172N · Ochopee, FL · September 24, 1989

Accident · FatalField investigationFinal report
Date
September 24, 1989, 09:35 local (13:35 UTC)
Place
Ochopee, FL
Injuries
2 fatal, 1 uninjured
Phase of flight
Maneuvering
Aircraft
N1063FCessna 172NN80587Cessna 152
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 1991
Report
Approved by Office Director
Case key
32311

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The failure of the pilots of both airplanes to see and avoid each other while maneuvering.

The failure of the pilots of both airplanes to see and avoid each other while manuevering.

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 collisionManeuvering
Visual lookout - inadequatePilot in command(cfi)Cause
Visual lookout - inadequatePilot of other aircraftCause
Midair collisionManeuvering
Visual lookout - inadequatePilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause

Analysis

N80587 manuevered around the observation tower at shark valley at an altitude of 600 feet. The flight then departed the area climbing toward the southeast at 100 knots. N1063F was performing slow flight with full flaps extended at approximately 800 feet and a southwesterly heading. As the radar targets of both airplanes crossed, N1063F turned toward the west and began to fly an erratic path. N80587 continued to climb normally and returned to the tamiami airport for landing. N1063F was lost from radar one minute later. A tire mark on the upper inboard area of the right wing of N1063F was found which best matches the left main tire of N80587. The rear wing spar of N1063F failed in the area of the tire mark and the airplane experienced inflight separation of the wings. The pilot of N80587 did not recall colliding with another airplane or any event that would suggest this. He passed a polygraph test to that effect

N80587 manuevered around the observation tower at shark valley at an altitude of 600 feet. The flight then departed the area climbing toward the southeast at 100 knots. N1063F was performing slow flight with full flaps extended at approximately 800 feet and a southwesterly heading. As the radar targets of both airplanes crossed, N1063F turned toward the west and began to fly an erratic path. N80587 continued to climb normally and returned to the tamiami airport for landing. N1063F was lost from radar one minute later. A tire mark on the upper inboard area of the right wing of N1063F was found which best matches the left main tire of N80587. The rear wing spar of N1063F failed in the area of the tire mark and the airplane experienced inflight separation of the wings. The pilot of N80587 did not recall colliding with another airplane or any event that would suggest this. He passed a polygraph test to that effect.

Aircraft · 2

Registration
N1063F
Reported as
Cessna 172N
Category
Airplane
Serial number
17272941
Airframe hours
3,682
Engine
Lycoming O-320-H2AD, 160 horsepower, reciprocating
Damage
Destroyed
Flight
Instructional · Part 91
Registered owner
Airmim, Inc.
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
100 hour · July 25, 1989 · 85 hours before
Departed
IMB · Miami, FL

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
N80587
Reported as
Cessna 152
Category
Airplane
Serial number
15285366
Airframe hours
3,032
Engine
Lycoming O-235-L2C, 110 horsepower, reciprocating
Damage
Minor damage
Flight
Instructional · Part 91
Registered owner
Tamiami Service, Inc
Airworthiness certificate
Standard, Normal; Standard, Utility
Departed
IMB · Miami, FL

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 N1063F
Age
62
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Toxicology
Performed
Flight hours
27,267 total · 1,500 in this make and model · 2,472 as pilot in command · 53 in the last 90 days · 18 in the last 30 days · 1 in the last 24 hours
Role
Pilot, aircraft N80587
Age
35
Certificate
Student
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
24 total · 24 in this make and model · 2 as pilot in command · 24 in the last 90 days · 20 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 75 °F
Altimeter
29.00 inHg
Observed at
TMB, 18 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.