# NTSB DEN68A0057: Cessna 337, N2212X, Denver, CO, June 12, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 12, 1968
- Place: Denver, CO · DENVER, CO
- Location: 39.7392° N, 104.9847° W: Placed by OpenAirDocs: center of Denver, CO, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7392&lon=-104.9847&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 64 uninjured
- Status: Completed, report September 11, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 110668
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN68A0057
- Page: https://openairdocs.org/ntsb/DEN68A0057

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0021  68/6/12  NR.DENVER,COLO        BOEING 727          CR-  0  0  7  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0719                    N7086U              PX-  0  0 55                            43, 16000 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  2                            2400 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - UNITED AIR LINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-US AIR CARRIER
          CONTROLLING AGENCY - APPROACH CONTROL LANDING            RADAR CTL/SURVEILLANCE - UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - BY APPROACH CONTROL            CONTROLLED/UNCONTROLLED AIRPORT - CONTROLLED AIRPORT
          CONTROL ZONE/AREA - NO                                   CONVERGENCE ANGLE-DEGREES -  70
          HORIZONTAL COLLISION ANGLE-DEGREES -   70                VERTICAL COLLISION ANGLE-DEGREES -  11
          EVASIVE ACTION TAKEN - YES                               ANTI-COLLISION LIGHTS - NOT OPERATING
        REMARKS- LANDED AT ARPT,NO FURTHER DAMAGE.
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0021  68/6/12  NR.DENVER,COLO        CESSNA 337          CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 36, 5000
        TIME - 0719                    N2212X              PX-  0  0  1  POLICE PATROL             TOTAL HOURS, 200 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0 62                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-US AIR CARRIER
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROLLED/UNCONTROLLED AIRPORT - CONTROLLED AIRPORT
          CONTROL ZONE/AREA - NO                                   CONVERGENCE ANGLE-DEGREES -  70
          HORIZONTAL COLLISION ANGLE-DEGREES -   70                VERTICAL COLLISION ANGLE-DEGREES -  4
          EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - OPERATING
        REMARKS- LANDED AT ARPT,NO FURTHER DAMAGE.
```

## Aircraft 1

- Registration: N2212X (not matched to a registry record)
- Reported make and model: CESSNA 337
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Aircraft 2

- Registration: N7086U (not matched to a registry record)
- Reported make and model: BOEING 727
- Category: Airplane
- Engines: turbo jet
- Damage: Minor 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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