# NTSB SEA70F0050: Beech A35, N3940, Seattle, WA, July 22, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 22, 1969
- Place: Seattle, WA · SEATTLE, WA
- Location: 47.6062° N, 122.3321° W: Placed by OpenAirDocs: center of Seattle, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.6062&lon=-122.3321&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 12, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 167369
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA70F0050
- Page: https://openairdocs.org/ntsb/SEA70F0050

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3225  69/7/22    SEATTLE,WASH        BEECH A35           CR-  0  0  1  MISCELLANEOUS             PRIVATE, AGE 52, 1133
        TIME - 0900                    N3940               PX-  0  0  1  TEST                      TOTAL HOURS, 840 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BOEING
        DEPARTURE POINT             INTENDED DESTINATION
          SEATTLE,WASH                SEATTLE,WASH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            TAKEOFF: INITIAL CLIMB
           COLLISION WITH GROUND/WATER: CONTROLLED                  TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: AILERON AND AILERON TAB CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        REMARKS- BOTH AILERONS OPERATED IN SAME DIRECTION. TEST HOP AFTER MAJOR RE-WORK.
```

## Aircraft

- Registration: N3940 (not matched to a registry record)
- Reported make and model: BEECH A35
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Boeing

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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