# NTSB SEA78DYE23: Zimmerman Akro, N11GZ, Redmond, WA, May 8, 1978

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 8, 1978
- Place: Redmond, WA · REDMOND, WA
- Location: 47.6779° N, 122.1153° W: Placed by OpenAirDocs: center of Redmond, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.6779&lon=-122.1153&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report June 16, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 142449
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA78DYE23
- Page: https://openairdocs.org/ntsb/SEA78DYE23

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1046   78/5/8    REDMOND,WA          ZIMMERMAN AKRO      CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 1530                    N11GZ               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  32, 3855 TOTAL HOURS, 230
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          REDMOND,WA                  SEATTLE,WA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           TERRAIN - WET,SOFT GROUND
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NO ENG MALFUNCTION FOUND.
```

## Aircraft

- Registration: N11GZ (not matched to a registry record)
- Reported make and model: ZIMMERMAN AKRO
- Category: Airplane, amateur-built
- 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 19780508010399A](https://openairdocs.org/incident/19780508010399A), May 8, 1978: Kinner SPORTSTERK, WA, 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.