# NTSB SEA77FYP30: Burkhrt GRB G102, N11U, Ephrata, WA, June 11, 1977

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 11, 1977
- Place: Ephrata, WA · EPHRATA, WA
- Location: 47.3121° N, 119.5344° W: Placed by OpenAirDocs: center of Ephrata, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.3121&lon=-119.5344&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report September 2, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 147146
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA77FYP30
- Page: https://openairdocs.org/ntsb/SEA77FYP30

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1685  77/6/11    EPHRATA,WA          BURKHRT GRB G102    CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 51, 327
        TIME - 1245                    N11U                PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 4 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          EPHRATA,WA                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: CLIMB TO CRUISE
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (OWNER-PILOT)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: AILERON AND AILERON TAB CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - FLUTTER
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  LATERAL CONTROL PROBLEM
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- GLIDER ASSEMBLED PRIOR TO FLT.AILERON CTLS NOT PROPERLY CONNECTED.NOT EQUIPPED WITH REQD TOOL.
```

## Aircraft

- Registration: [N11U](https://openairdocs.org/aircraft/N11U), registered now, S/N 1369, built 1976 (OpenAirDocs)
- Reported make and model: BURKHRT GRB G102
- Registry model: [Burkhart Grob Flugzeugbau G102 ASTIR CS](https://openairdocs.org/model/burkhart-grob-flugzeugbau-g102-astir-cs) (registry code 1660104) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- 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 19770611016699A](https://openairdocs.org/incident/19770611016699A), Jun 11, 1977: Grob G102ASTIR, Ephrata, WA, Substantial damage. Glider assembled prior to flt. Aileron ctls not properly connected. Not equipped with reqd tool.

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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