ATL83LA120

NTSB accident investigation · Cessna 421 · Dayton, TN · February 24, 1983

Accident · No injuriesLimited investigationFinal report
Date
February 24, 1983, 07:00 local (12:00 UTC)
Place
Dayton, TN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N123SMCessna 421
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830224005789A
Case key
6023

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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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.

In flight collision with objectApproach - iaf to faf/outer marker (ifr)
Object - tree(s)Factor
Ifr procedure - improper use ofPilot in commandCause
Instrument approach procedure - incorrect

Analysis

The Cessna 421 collided with trees during the landing approach while on a corporate flight. The weather was IMC at the accident site and the acft was on an IFR flight plan. The acft was substantially damaged but the pilot was not injured. The acft contacted trees 5 miles north of the airport. The accident occurred during an RNAV approach to runway 21 at mark anton field, Dayton, TN. The pilot stated that at what he thought to be the final approach fix a descent was begun from 2300 ft to 1520 ft. at 2000 ft collision with trees occurred, (on the 170 degree radial 12 NM from the hinch mountain VOR). A missed approach was executed and the acft was flown to knoxville. No malfunctions were found in the RNAV system. The pilot said he could have 'missed keying in' the appropriate waypoint.

Aircraft

Registration
N123SM
Reported as
Cessna 421
Category
Airplane
Serial number
421-0193
Airframe hours
4,065
Engine
Continental GTSIO-520D, 375 horsepower, reciprocating
Damage
Substantial damage
Flight
Executive/Corporate · Part 91
Registered owner
Robinson Manufacturing Co./Inc
Airworthiness certificate
Standard, Normal
Last inspection
Unknown · October 20, 1982 · 86 hours before
Departed
TYS · Knoxville, TN
Flight plan
IFR
Airport
2A0 · Mark Anton, runway 21, 4,500 × 75 ft, asphalt

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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Certificates
Flight instructor, Airline transport
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
4,330 total · 300 in this make and model · 4,110 as pilot in command · 105 in the last 90 days · 4 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
190° at 5 knots
Visibility
5 statute miles
Lowest ceiling
1,600 ft overcast
Temperature
48 °F, dew point 45 °F
Altimeter
29.00 inHg
Observed at
CHA, 30 nm away

FAA reports on this event · 1

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

Other investigations on N123SM · 2

Matched to the same aircraft by N-number and date.