# NTSB ATL87LA026: Mullinax KR-2, N313RR, Augusta, GA, November 22, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 22, 1986, 15:00 local (20:00 UTC)
- Place: Augusta, GA
- Coordinates: 33.349433, -81.969383 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.3494&lon=-81.9694&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): 7352
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL87LA026
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/7352/pdf
- Page: https://openairdocs.org/ntsb/ATL87LA026

## 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 - fuel (cause)
  - fuel system,carburetor - improper (cause)
  - operation with known deficiencies in equipment - disregarded, pilot in command (cause)
  - maintenance,adjustment - improper, pilot in command (cause)
- Loss of control - in flight, maneuvering - turn to reverse direction
  - all available runway - not possible, pilot in command
  - stall - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PLT STATED THAT THE ENG ALWAYS RAN ROUGH AT FULL PWR DUE TO A RICH MIXTURE SETTING ON THE CARBURETOR. NORMALLY THE ENG ROUGHNESS COULD BE CORRECTED BY RETARDING THE THROTTLE OR MIXTURE CONTROL. THE PLT SAID THAT HE ADJUSTED THE MIXTURE ON THE CARBURETOR ONE TURN TOWARDS LEAN PRIOR TO THE ACCIDENT FLT. AFTER 30 MINUTES OF FLT, THE PLT ATTEMPTED A TOUCH AND GO LANDING. ON INITIAL CLIMB FROM THE LANDING, THE ENG FAILED. TO AVOID A HIGHWAY AT THE END OF THE RWY, THE PLT MADE A RIGHT TURN IN AN ATTEMPT TO RETURN TO THE ARPT. THE ACFT THEN STALLED AND DESCENDED TO GROUND IMPACT. THE PLTS FLT TIME WAS NOT REPORTED OR AVAILABLE.

## Aircraft

- Registration: [N313RR](https://openairdocs.org/deregistered/N313RR-2014-12-02), registration cancelled 2014-12-02, S/N 257-84-3180, built 1983 (OpenAirDocs)
- Reported make and model: MULLINAX KR-2
- Registry model: [Mullinax Robert A KR-2](https://openairdocs.org/model/mullinax-robert-a-kr-2) (registry code 05648LM) (OpenAirDocs)
- Registry engine: [Volkswagen CONVERSION](https://openairdocs.org/engine/volkswagen-conversion) (registry code 63501, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 257-84-3180
- Engines: Volkswagen 2200CC reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Robert A. Mullinax
- Airworthiness certificate: Special, Experimental (Special)
- Airport: DNL, Daniel Field, runway 10, 3,773 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.

## Weather

- Conditions: Visual (VMC), Day
- Wind: 100° at 7 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 63 °F, dew point 39 °F
- Altimeter: 30.00 inHg
- Observed at: AGS, 6 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 19861122067999A](https://openairdocs.org/incident/19861122067999A), Nov 22, 1986: Amtr KR2, Augusta, GA, Destroyed. The engine failed during takeoff and the aircraft impacted the ramp. The pilot had been adjusting the carb mixture

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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