# NTSB CHI83LA129: Rand KR1 KR-1, N4306, Watervliet, MI, March 6, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 6, 1983, 14:45 local (19:45 UTC)
- Place: Watervliet, MI
- Coordinates: 42.179096, -86.249908 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.1791&lon=-86.2499&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12102
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI83LA129
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12102/pdf
- Page: https://openairdocs.org/ntsb/CHI83LA129

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, takeoff - initial climb
  - fuel system,carburetor - ice (contributing factor)
  - carburetor heat - not used, pilot in command (cause)
  - aircraft preflight - inadequate, pilot in command (cause)
- Forced landing, landing - flare/touchdown
- Hard landing, landing - flare/touchdown
  - stall/mush - not corrected, pilot in command (cause)
- Complete gear collapsed, landing - flare/touchdown

## Analysis

THE PILOT STATED THAT HE HAD FLOWN THE AIRCRAFT ON THE PREVIOUS DAY AND THE OPERATION HAD BEEN SATISFACTORY. PRIOR TO THAT FLIGHT THE AIRCRAFT HAD NOT BEEN FLOWN FOR TWO YEARS. AFTER TAKEOFF HE EXPERIENCED POWER INTERRUPTION, MADE A 180 DEGREE TURN BACK TO THE AIRPORT BUT WAS REQUIRED TO TURN LEFT TO AVOID AN ONCOMING AIRCRAFT THAT WAS TAKING OFF. DURING THE TURN THE AIRCRAFT STALLED AND IMPACTED THE GROUND. CARBURETOR HEAT HAD NOT BEEN CHECKED OR APPLIED DURING AN EXTENSIVE PREFLIGHT GROUND OPERATION.

## Aircraft

- Registration: [N4306](https://openairdocs.org/deregistered/N4306-1984-02-03), registration cancelled 1984-02-03, S/N KR1846572, built 1977 (OpenAirDocs)
- Reported make and model: RAND KR1 KR-1
- Registry model: [Pumfery KR-1](https://openairdocs.org/model/pumfery-kr-1) (registry code 0564847) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 846572
- Airframe hours: 94
- Engines: Volkswagen 1500 CC 52 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Richard Pumfery
- Last inspection: Annual, February 15, 1983, 0 hours before
- Airport: 40C, Watervliet, runway 20, 2,580 × 180 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 682 total, 95 in this make and model, 615 as pilot in command, 9 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 170° at 12 knots
- Visibility: 7 statute miles
- Lowest ceiling: 3,000 ft broken
- Temperature: 68 °F, dew point 52 °F
- Altimeter: 29.00 inHg
- Observed at: BEH, 15 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 (OpenAirDocs).

- [Accident 19830306006209A](https://openairdocs.org/incident/19830306006209A), Mar 6, 1983: Amtrrn KR1, Watervliet, MI, Destroyed. Failed to use carburetor heat prolonged ground check. Engine quit in pattern. Stalled on short final.

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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