# NTSB MIA71FKG62: Ryan ST-3KR, N55081, Decatur, GA, February 6, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 6, 1971
- Place: Decatur, GA · DECATUR, GA
- Location: 33.7711° N, 84.2958° W: Placed by OpenAirDocs: center of Decatur, GA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.7711&lon=-84.2958&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 29, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 160376
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA71FKG62
- Page: https://openairdocs.org/ntsb/MIA71FKG62

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4517   71/2/6    DECATUR,GA          RYAN ST-3KR         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 32, 88 TOTAL
        TIME - 1345                    N55081              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 2 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CHAMBLEE,GA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - WET,SOFT GROUND
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  PROP/ENGINE VIBRATION
        REMARKS- NR3 CYL KNUCKLE PIN FAILED.LNDD IN SOFT MUDDY FLD.
```

## Aircraft

- Registration: [N55081](https://openairdocs.org/deregistered/N55081-2011-04-20), registration cancelled 2011-04-20, S/N 1422, built 1941 (OpenAirDocs)
- Reported make and model: RYAN ST-3KR
- Registry model: [Ryan Aeronautical ST3KR](https://openairdocs.org/model/ryan-aeronautical-st3kr) (registry code 7830502) (OpenAirDocs)
- Registry engine: [Kinner R5 series](https://openairdocs.org/engine/kinner-r5-series) (registry code 37504, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

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.