# NTSB DEN75AD062: Convair 580, N73168, Gunnison, CO, June 20, 1975

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: June 20, 1975
- Place: Gunnison, CO · GUNNISON, CO
- Location: 38.5480° N, 106.9246° W: Placed by OpenAirDocs: center of Gunnison, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.5480&lon=-106.9246&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 52 uninjured
- Status: Completed, report July 10, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 148630
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN75AD062
- Page: https://openairdocs.org/ntsb/DEN75AD062

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0011  75/6/20  NR.GUNNISON,CO        CONVAIR 580         CR-  0  1  2  SCHED DOM PASSG SRV       ATP,FLIGHT INSTR., AGE
        TIME - 1625                    N73168              PX-  0  0 50                            45, 13454 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            4136 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - FRONTIER AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          DENVER,CO                   PHOENIX,AZ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
           PERSONNEL - FLIGHT PERSONNEL: FLIGHT ATTENDANT
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT NOT FASTENED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT SIGN ON
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          BROKEN                                                   UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          UNKNOWN/NOT REPORTED                                     210
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           54                                                      IFR
        TYPE OF FLIGHT PLAN
          IFR
        REMARKS- LOST BALANCE. FELL AGAINST PAX SEAT.
```

## Aircraft

- Registration: N73168 (not matched to a registry record)
- Reported make and model: CONVAIR 580
- Category: Airplane
- Engines: turbo prop
- Damage: No 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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