# NTSB SEA73AS003: Cessna 170B, N4617C, Issaquah, WA, August 6, 1972

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: August 6, 1972
- 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: Fatal
- Injuries: 5 fatal
- Status: Completed, report March 1, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 168103
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA73AS003
- Page: https://openairdocs.org/ntsb/SEA73AS003

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2665   72/8/6    ISSAQUAH,WASH       CESSNA 170B         CR-  1  0  0  MISCELLANEOUS             COMMERCIAL, AGE 26, 903
        TIME - 0958                    N4617C              PX-  4  0  0  PARAJUMP-AIR SHOW         TOTAL HOURS, 645 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - ISSAQUAH SKYPORT
        DEPARTURE POINT             INTENDED DESTINATION
          ISSAQUAH,WASH               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: SPIN                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY LOADED AIRCRAFT-WEIGHT-AND/OR C.G.
           WEATHER - HIGH DENSITY ALTITUDE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          HAZE                                                      80
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          330                                                       7
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- LOST CTL IN LOW L TURN. ACFT OVER MAX GROSS WT 77 LBS. CG AT AFT LIMITS. DENSITY ALT ABOUT 1300 FT
```

## Aircraft

- Registration: [N4617C](https://openairdocs.org/deregistered/N4617C-1973-06-25), registration cancelled 1973-06-25, S/N 25561, built 1953 (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: Destroyed
- Airport: Issaquah Skyport

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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