# NTSB DEN84LA033: Cessna 172, N52419, Yankton, SD, November 17, 1983

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: November 17, 1983, 08:15 local (14:15 UTC)
- Place: Yankton, SD
- Coordinates: 42.879901, -97.390861 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.8799&lon=-97.3909&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 2 uninjured; on the ground: 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16296
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84LA033
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16296/pdf
- Page: https://openairdocs.org/ntsb/DEN84LA033

## Analysis

THE PLT STATED THE ENG WOULDN'T START & HE SUSPECTED A DEAD SPOT ON THE STARTER. HE THEN ASKED A MECHANIC TO ROTATE THE PROP. ALL SWITCHES WERE OFF EXCEPT THE BATTERY SWITCH. WHEN THE MECHANIC MOVED THE PROP THE ENG STARTED & THE PROP STRUCK THE MECHANIC. EXAMINATION OF THE ACFT'S IGNITION WIRING REVEALED THAT THE RIGHT MAGNETO 'P' LEAD WAS INCORRECTLY CONNECTED TO THE GROUND TERMINAL CAUSING THE RIGHT MAGNETO TO BE OPEN, OR HOT.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Propeller/rotor contact to person, standing
  - ignition system,magneto - open (cause)
  - maintenance,installation - improper, other maintenance personnel (cause)

## Aircraft

- Registration: [N52419](https://openairdocs.org/deregistered/N52419-2007-12-06), registration cancelled 2007-12-06, S/N 17274512, built 1980 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (registry code 2072436) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17274512
- Airframe hours: 1105
- Engines: LYCOMING IO-320-E2D 150 horsepower reciprocating
- Damage: No damage
- Flight: Part 135
- Registered owner: Falcon Aviation, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, November 1, 1982, 45 hours before
- Destination: SD47, EAGLE BUTTE, SD
- Flight plan: VFR
- Airport: YKN, Chan Gurney

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 2,650 total, 600 in this make and model, 2,350 as pilot in command, 70 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dawn
- Wind: 320° at 5 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 45 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19831117075549A](https://openairdocs.org/incident/19831117075549A), Nov 17, 1983: Cessna 172P, Yankton, SD. Mechanic struck by hot prop as he moved it for the pilot. Mags were off but plead wired incorrectly made mag hot.

## Other investigations on N52419 (1)

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

- [NTSB CHI97LA303](https://openairdocs.org/ntsb/CHI97LA303), Sep 28, 1997: Cessna 172P (N52419), Yankton, SD, substantial damage. Probable cause: The pilot's failure to maintain control of the aircraft. A factor contributing to the accident was the wind gusts.

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

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.