# NTSB MKC77DER28: Cessna 172G, N4621L, Sandstone, MN, April 7, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 7, 1977
- Place: Sandstone, MN · SANDSTONE, MN
- Location: 46.1290° N, 92.8646° W: Placed by OpenAirDocs: center of Sandstone, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.1290&lon=-92.8646&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 3, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157516
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC77DER28
- Page: https://openairdocs.org/ntsb/MKC77DER28

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0736   77/4/7    SANDSTONE,MN        CESSNA 172G         CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 28, 88 TOTAL
        TIME - 1330                    N4621L              PX-  0  0  0  SOLO                      HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - SANDSTONE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          SANDSTONE,MN                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     LANDING: GO-AROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
        FACTOR(S)
           WEATHER - SUDDEN WINDSHIFT
        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                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT QUARTERING HEAD WIND 293-337 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          315                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- WIND GUSTING TO 15 KTS.
```

## Aircraft

- Registration: [N4621L](https://openairdocs.org/aircraft/N4621L), registered now, S/N 17254616, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA 172G
- Registry model: [Cessna 172G](https://openairdocs.org/model/cessna-172g) (registry code 2072420) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sandstone Muni

## 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 19770407008509A](https://openairdocs.org/incident/19770407008509A), Apr 7, 1977: Cessna 172G, Sandstone, MN, Substantial damage. Wind gusting to 15 KTS.

## Other investigations on N4621L (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 CHI00LA010](https://openairdocs.org/ntsb/CHI00LA010), Oct 15, 1999: Cessna 172G (N4621L), Cambridge, MN, substantial damage. Probable cause: the fractured main landing gear due to the improper maintenance by an unknown person(s) and the inadequate annual inspection by an unqualified person.

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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