# NTSB ATL85FA221: Cessna 421C, Kennesaw, GA, July 19, 1985

- Type: NTSB accident investigation
- Date: July 19, 1985, 15:16 UTC, 11:16 local
- Place: Kennesaw, GA
- Coordinates: 34.019298, -84.610282 (estimated)
- Highest injury: Fatal
- Injuries: 1 fatal, 4 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6627
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL85FA221
- NTSB report (PDF): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6627/pdf
- Page: https://openairdocs.org/ntsb/ATL85FA221

## Analysis

THE ACFT LOST POWER ON # 2 ENG SHORTLY AFTER TAKE-OFF. THE ACFT CRASHED AND BURNED IN A WOODED AREA SEVERAL MILES SW OF THE ARPT. THE # 2 ENG WAS SEVERLY DAMAGED IN THE FIRE. NO PRE-IMPACT MALFUNCTION COULD BE DOCUMENTED. EXAMINATION OF THE PROP DID NOT REVEAL DAMAGE CONSISTENT WITH THAT USUALLY FOUND WHEN A PROP IS IN THE FEATHERED POSITION. THE FLAP JACK SCREW WAS FOUND IN THE 10-15 DEG POSITION. BOTH ENG HAD A HISTORY OF SHUT DOWN AT LOW PWR SETTINGS DURING TAXI. THE # 2 ENG HAD 'BURBLED' DURING THE PREVIOUS FLT AND THE # 1 ENG SHUT DOWN AFTER LDG.

## Sequence of events

- Loss of engine power(total) - mech failure/malf, takeoff - initial climb
  - operation with known deficiencies in equipment - improper, pilot in command (cause)
  - miscellaneous - undetermined (cause)
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
  - remedial action - not performed, pilot in command (cause)
  - propeller feathering - not used, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (cause)
- In flight collision with object, descent - emergency
  - object - tree(s)
- In flight collision with terrain/water, descent - emergency

## Aircraft

- Registration: N5473G, a cancelled registration (https://openairdocs.org/deregistered/N5473G-2013-09-16) (OpenAirDocs)
- Reported make and model: CESSNA 421C
- Registry model: Cessna 421C (registry code 2076016, https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Registry engine: Continental GTSI0-520-F-K (registry code 17031, https://openairdocs.org/engine/continental-gtsi0-520-f-k) (OpenAirDocs)
- Category: Airplane
- Serial number: 421C-0220
- Airframe hours: 1700
- Engines: CONTINENTAL GTSI0-520-L 375 horsepower
- Damage: Destroyed
- Flight: Executive/Corporate, Part 91
- Operator: HMGS
- Departed: 8A4, MARIETTA, GA
- Destination: PIE, ST.PETERSBURG, FL
- Airport: 8A4, MCCOLLUM, runway 27
- FAA reports: 19850719032889A (https://openairdocs.org/incident/19850719032889A) (OpenAirDocs)

## Flight crew

- Pilot; age 22; flight instructor, commercial; medical class 1; hours: 10 24 hours, 10 24 hours in this make and model, 300 90 days, 185 90 days in this make and model, 1,590 pic, 425 pic in this make and model, 1,770 total, 450 total in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 280° at 3 knots
- Visibility (statute miles): 8
- Temperature (°F): 82.4

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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From OpenAirDocs.org, an independent open copy of NTSB and FAA data. The NTSB's own report is the official record of an investigation.