# NTSB MKC76AK025: Ryan ST-3KR, N47080, Frederika, IA, October 4, 1975

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: October 4, 1975
- Place: Frederika, IA · FREDERIKA, IA
- Location: 42.8834° N, 92.3060° W: Placed by OpenAirDocs: center of Frederika, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.8834&lon=-92.3060&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report December 24, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 151580
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC76AK025
- Page: https://openairdocs.org/ntsb/MKC76AK025

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3462   75/10/4   FREDERIKA,IA        RYAN ST-3KR         CR-  2  0  0  NONCOMMERCIAL             PRIVATE, AGE 46, 1700
        TIME - 1524                    N47080              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          WATERLOO,IA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: ACROBATICS
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        REMARKS- BOTH PLTS PROPERLY CERTIFICATED FOR FLT OPN.ACFT OBSVD TO ROLL L ABT 300FT AGL.DSCNDD FM INVTD PSN
```

## Aircraft

- Registration: [N47080](https://openairdocs.org/aircraft/N47080), registered now, S/N 1391, built 1942 (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: [Fairchild 6-410 series](https://openairdocs.org/engine/fairchild-6-410-series) (registry code 26002, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19751004038279A](https://openairdocs.org/incident/19751004038279A), Oct 4, 1975: Ryan ST3KR, Frederika, IA, Destroyed. Both plts properly certificated for flt opn. Acft obsvd to roll l abt 300FT AGL.dscndd fm invtd psn

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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