# NTSB SEA75DYE35: Cessna 170B, N3456C, Issaquah, WA, March 5, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 5, 1975
- Place: Issaquah, WA · ISSAQUAH, WA
- Location: 47.5462° N, 122.0581° W: Placed by OpenAirDocs: center of Issaquah, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.5462&lon=-122.0581&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report April 30, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 146897
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA75DYE35
- Page: https://openairdocs.org/ntsb/SEA75DYE35

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0584   75/3/5    ISSAQUAH,WA         CESSNA 170B         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 31, 1132
        TIME - 1745                    N3456C              PX-  0  0  4  PARAJUMP-SPORT            TOTAL HOURS, 595 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - ISSAQUAH SKYPORT
        DEPARTURE POINT             INTENDED DESTINATION
          ISSAQUAH,WA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - PREMATURE LIFT-OFF
           PILOT IN COMMAND - MISUSED OR FAILED TO USE FLAPS
        REMARKS- FLAPS FND IN UP PSN.STC MOD TO DECREASE BASIC WT.WT & CG WITHIN LIMITS.
```

## Aircraft

- Registration: [N3456C](https://openairdocs.org/deregistered/N3456C-1975-08-11), registration cancelled 1975-08-11, S/N 26499 (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Issaquah Skyport

## 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 19750305003619A](https://openairdocs.org/incident/19750305003619A), Mar 5, 1975: Cessna 170B, Issaquah, WA, Substantial damage. Flaps fnd in up psn.STC mod to decrease basic wt. Wt & CG within limits.

## Other investigations on N3456C (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 SEA75AS042](https://openairdocs.org/ntsb/SEA75AS042), May 29, 1975: Cessna 170B (N3456C), Issaquah, WA, destroyed, 3 fatal

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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