# NTSB UNK64X3722: Cessna 170, N2540C, St Marys Gla, CO, September 1, 1964

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: September 1, 1964
- Place: St Marys Gla, CO · ST MARYS GLA, CO
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report November 5, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 185967
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X3722
- Page: https://openairdocs.org/ntsb/UNK64X3722

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2721   64/9/1  NR.ST MARYS GLA COLO  CESSNA 170          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 27, 270
        TIME - 1110                    N2540C              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 69 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED SPEED AND ALTITUDE
           MISCELLANEOUS ACTS,CONDITIONS - FLEW INTO BLIND CANYON
           WEATHER - DOWNDRAFT,UPDRAFTS
        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                  TYPE OF WEATHER CONDITIONS
          NONE                                                     VFR
        TYPE OF FLIGHT PLAN
          VFR
```

## Aircraft

- Registration: [N2540C](https://openairdocs.org/deregistered/N2540C-1970-06-25), registration cancelled 1970-06-25, S/N 26184, built 1954 (OpenAirDocs)
- Reported make and model: CESSNA 170
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: 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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