# NTSB ANC77FA066: Cessna 170-A, N9543A, Portage Pass, AK, July 30, 1977

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 30, 1977
- Place: Portage Pass, AK · PORTAGE PASS, AK
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 5 fatal
- Status: Completed, report November 14, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 146035
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC77FA066
- Page: https://openairdocs.org/ntsb/ANC77FA066

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3270  77/7/30    PORTAGE PASS,AK.    CESSNA 170-A        CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 40, 622
        TIME - 1310                    N9543A              PX-  4  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 588 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ANCHORAGE,AK.               COGHILL LAKE,AK.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           WEATHER - LOW CEILING
           WEATHER - FOG
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               0
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                     UNKNOWN/NOT REPORTED
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          FOG                                                      IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- A/C FLOAT EQUIPPED.PHASE UNK.
```

## Aircraft

- Registration: [N9543A](https://openairdocs.org/aircraft/N9543A), registered now, S/N 19104, built 1949 (OpenAirDocs)
- Reported make and model: CESSNA 170-A
- Registry model: [Cessna 170A](https://openairdocs.org/model/cessna-170a) (registry code 2072304) (OpenAirDocs)
- Registry engine: [Franklin 6A4165 series](https://openairdocs.org/engine/franklin-6a4165-series) (registry code 27025, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19770730035219A](https://openairdocs.org/incident/19770730035219A), Jul 30, 1977: Cessna 170A, Portage Pass, AK, Substantial damage, 4 fatal. A/c float equipped. Phase unk.

## Other investigations on N9543A (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 SEA71FDG13](https://openairdocs.org/ntsb/SEA71FDG13), Sep 14, 1970: Cessna 170A (N9543A), Fort Benton, MT, substantial damage

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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