# NTSB DEN78FTM15: Grumman G164A, N48599, Park City, UT, March 13, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 13, 1978
- Place: Park City, UT · PARK CITY, UT
- Location: 40.6572° N, 111.4937° W: Placed by OpenAirDocs: center of Park City, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.6572&lon=-111.4937&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 18, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 147519
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN78FTM15
- Page: https://openairdocs.org/ntsb/DEN78FTM15

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0358  78/3/13  NR.PARK CITY,UT       GRUMMAN G164A       CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 34, 5670
        TIME - 2010                    N48599              PX-  0  0  0  FERRY                     TOTAL HOURS, 150 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ROCKSPRINGS,WY              SALT LAKE CITY,UT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: SNOWBANK                                  LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
        FACTOR(S)
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
           TERRAIN - SNOW-COVERED
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, IN PERSON
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  ADVERSE/UNFAVORABLE WEATHER
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          SCATTERED                                                UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          BLOWING SNOW                                             210
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           30                                                      IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- RIGHT MAIN WHEEL DID NOT ROTATE AFTER TOUCHDOWN DUE TO PACKED ICE COVERING ONE HALF OF WHEEL.
```

## Aircraft

- Registration: [N48599](https://openairdocs.org/deregistered/N48599-2012-12-18), registration cancelled 2012-12-18, S/N 1680, built 1976 (OpenAirDocs)
- Reported make and model: GRUMMAN G164A
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (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 19780313003959A](https://openairdocs.org/incident/19780313003959A), Mar 13, 1978: Gulstm G164A, Park City, UT, Substantial damage. Right main wheel did not rotate after touchdown due to packed iceering one half of wheel.

## Other investigations on N48599 (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 SEA91LA195](https://openairdocs.org/ntsb/SEA91LA195), Jul 28, 1991: Grumman G-164A (N48599), Genesee, ID, destroyed. Probable cause: THE PILOT'S FAILURE TO MAINTAIN ALIGNMENT WITH THE STRIP. CONTRIBUTING TO THE ACCIDENT WAS THE GLARE OF A BRIGHT HORIZON AT DAWN.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.