# NTSB ANC73DAG99: Piper PA-20, N7721K, Cantwell, AK, May 30, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 30, 1973
- Place: Cantwell, AK · CANTWELL, AK
- Location: 63.3917° N, 148.9508° W: Placed by OpenAirDocs: center of Cantwell, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=63.3917&lon=-148.9508&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report October 2, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 190014
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC73DAG99
- Page: https://openairdocs.org/ntsb/ANC73DAG99

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2243  73/5/30    CANTWELL,ALAS       PIPER PA-20         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 28, 60 TOTAL
        TIME - 2030                    N7721K              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  HOURS, 15 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          TALKEETNA,ALAS              ERMINE LAKE MI.159
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           TERRAIN - OTHER
        REMARKS- WIND GUSTING 10K.LNDD ON ANCHORAGE-FAIRBANKS ALAS HWY. RAN INTO DITCH.
```

## Aircraft

- Registration: [N7721K](https://openairdocs.org/deregistered/N7721K-2020-02-21), registration cancelled 2020-02-21, S/N 20-543, built 1950 (OpenAirDocs)
- Reported make and model: PIPER PA-20
- Registry model: [Piper PA-20](https://openairdocs.org/model/piper-pa-20) (registry code 7102002) (OpenAirDocs)
- Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19730530017629A](https://openairdocs.org/incident/19730530017629A), May 30, 1973: Piper PA20, Cantwell, AK, Substantial damage. Wind gusting 10K.lndd on anchorage-fairbanks alas hwy. ran into ditch.

## Other investigations on N7721K (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 ANC80DAG26](https://openairdocs.org/ntsb/ANC80DAG26), Jan 4, 1980: Piper PA-20 (N7721K), Palmer, AK, 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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