# NTSB CHI84LA116: Navion A, N4893K, Newport, MN, February 22, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: February 22, 1984, 14:15 local (20:15 UTC)
- Place: Newport, MN
- Coordinates: 44.870601, -92.990066 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.8706&lon=-92.9901&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12551
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA116
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12551/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA116

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, descent - normal
  - exhaust system,muffler - burned (cause)
  - carburetor heat - selected, pilot in command (contributing factor)
  - exhaust system,muffler - failure,partial (cause)
- Forced landing, landing - flare/touchdown
  - terrain condition - none suitable (contributing factor)
  - lowering of flaps - not performed, pilot in command (contributing factor)
- In flight collision with terrain/water, landing - flare/touchdown
  - object - wire,static (contributing factor)

## Analysis

THE ACFT ENGINE FAILED WHEN THE PLT APPLIED CARBURATOR HEAT TO TRY TO 'CURE' A ROUGH RUNNING ENGINE. POST ACCIDENT INVESTIGATION REVEALED A HOLE IN THE LEFT MUFFLER AND SHROUD ALLOWING BURNT EXHAUST GASES TO ENTER THE CARBURETOR WHEN CARBURETOR HEAT WAS APPLIED.

## Aircraft

- Registration: N4893K (not matched to a registry record)
- Reported make and model: NAVION A
- Category: Airplane
- Serial number: NAV4-1893
- Airframe hours: 3341
- Engines: CONTINENTAL E-185-9 205 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Charles W. Heringlake
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 10, 1983, 37 hours before
- Departed: NEWPORT, MN
- Airport: D97, So. St. Paul Muni

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 2,716 total, 550 in this make and model, 1,331 as pilot in command, 35 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 10 knots
- Visibility: 8 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 19840222036359A](https://openairdocs.org/incident/19840222036359A), Feb 22, 1984: Tmpson NAVIONA, Newport, MN, Substantial damage. Struck wires during a forced landing after power loss. Exhaust gasses drawn into carburetor from hole in muffler.

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.

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