# NTSB SEA79DYE24: Cessna 177B, N991MP, Mercer Island, WA, May 26, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 26, 1979
- Place: Mercer Island, WA · MERCER ISLAND, WA
- Location: 47.5640° N, 122.2312° W: Placed by OpenAirDocs: center of Mercer Island, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.5640&lon=-122.2312&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report August 2, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135703
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA79DYE24
- Page: https://openairdocs.org/ntsb/SEA79DYE24

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1209  79/5/26    MERCER ISLAND,WA    CESSNA 177B         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1200                    N991MP              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  AGE 54, 598 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            150 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - RENTON MUNICIPAL
        DEPARTURE POINT             INTENDED DESTINATION
          SEATTLE,WA                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: OBJECT                                    LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: CARBURETOR
           MISCELLANEOUS ACTS,CONDITIONS - OBSTRUCTED
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- AIR FILTER GASKET FOUND IN CARBURETOR VENTURI.STRUCK METAL GOAL POST
```

## Aircraft

- Registration: [N991MP](https://openairdocs.org/deregistered/N991MP-2010-07-16), registration cancelled 2010-07-16, S/N 17702024, built 1974 (OpenAirDocs)
- Reported make and model: CESSNA 177B
- Registry model: [Cessna 177B](https://openairdocs.org/model/cessna-177b) (registry code 2073708) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Renton Municipal

## 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 19790526013439A](https://openairdocs.org/incident/19790526013439A), May 26, 1979: Cessna 177, Mercer Island, WA, Substantial damage. Aircraft struck pole during emergency landing.

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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