# NTSB CHI77FEM22: Amer Avco AA1, N5706L, East Tawas, MI, April 11, 1977

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: April 11, 1977
- Place: East Tawas, MI · EAST TAWAS, MI
- Location: 44.2908° N, 83.4838° W: Placed by OpenAirDocs: center of East Tawas, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.2908&lon=-83.4838&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 1 serious
- Status: Completed, report June 24, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 158043
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI77FEM22
- Page: https://openairdocs.org/ntsb/CHI77FEM22

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0936  77/4/11    EAST TAWAS,MI       AMER AVCO AA1       CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 24, 520
        TIME - 1955                    N5706L              PX-  1  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 74 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - IOSCO COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          EAST TAWAS,MI               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: TRAFFIC PATTERN-CIRCLING
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - MISMANAGEMENT OF FUEL
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
        FACTOR(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
           POWERPLANT - FUEL SYSTEM: SELECTOR VALVES
           MISCELLANEOUS ACTS,CONDITIONS - STUCK
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           TERRAIN - SANDY
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- FUEL SEL VALUE #X670401 STUCK. POSITION OF VALUE WOULD NOT CAUSE ENG TO QUIT, JUST REDUCE PWR.
```

## Aircraft

- Registration: [N5706L](https://openairdocs.org/deregistered/N5706L-2012-08-27), registration cancelled 2012-08-27, S/N AA1-0106, built 1969 (OpenAirDocs)
- Reported make and model: AMER AVCO AA1
- Registry model: [American AA-1](https://openairdocs.org/model/american-aa-1) (registry code 0630610) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Iosco County

## 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 19770411010279A](https://openairdocs.org/incident/19770411010279A), Apr 11, 1977: Grumav AA1, East Tawas, MI, Destroyed, 1 fatal. Fuel sel value #X670401 stuck. Position of value would not cause eng to quit, just reduce pwr.

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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