# NTSB MKC77FCD33: Amer Avco AA-5A, N9580U, Osage, IA, July 4, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 4, 1977
- Place: Osage, IA · OSAGE, IA
- Location: 43.2827° N, 92.8113° W: Placed by OpenAirDocs: center of Osage, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.2827&lon=-92.8113&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report September 1, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 146076
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC77FCD33
- Page: https://openairdocs.org/ntsb/MKC77FCD33

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1729   77/7/4    OSAGE,IA            AMER AVCO AA-5A     CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 27, 814
        TIME - 1715                    N9580U              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 3 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          OSAGE,IA                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: FENCE,FENCEPOSTS                          TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
           PILOT IN COMMAND - DELAYED ACTION IN ABORTING TAKEOFF
        FACTOR(S)
           TERRAIN - HIGH VEGETATION
           WEATHER - HIGH TEMPERATURE
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          SCATTERED                                                UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      94
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          230                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      VFR
        REMARKS- TKOF FM ALFALFA FLD.
```

## Aircraft

- Registration: [N9580U](https://openairdocs.org/aircraft/N9580U), registered now, S/N AA5A-0080, built 1975 (OpenAirDocs)
- Reported make and model: AMER AVCO AA-5A
- Registry model: [Grumman American Avn. AA-5A](https://openairdocs.org/model/grumman-american-avn-aa-5a) (registry code 3960106) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19770704019839A](https://openairdocs.org/incident/19770704019839A), Jul 4, 1977: Grumav AA5A, Osage, IA, Substantial damage. Tkof fm alfalfa fld.

## Other investigations on N9580U (1)

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.

- [NTSB MKC78FER93](https://openairdocs.org/ntsb/MKC78FER93), Sep 20, 1978: Grumman AA-5A (N9580U), St Paul, MN, 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.

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