# NTSB DEN66F0247: Piper PA-22, N7139B, Boulder, CO, March 13, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 13, 1966
- Place: Boulder, CO · BOULDER, CO
- Location: 40.0244° N, 105.2513° W: Placed by OpenAirDocs: center of Boulder, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.0244&lon=-105.2513&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report April 18, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 173124
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN66F0247
- Page: https://openairdocs.org/ntsb/DEN66F0247

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0509  66/3/13    BOULDER COLO        PIPER PA-22         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 21, 73 TOTAL
        TIME - 1430                    N7139B              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - BOULDER
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - PREMATURE LIFT-OFF
```

## Aircraft

- Registration: [N7139B](https://openairdocs.org/deregistered/N7139B-1969-06-17), registration cancelled 1969-06-17, S/N 22-4359 (OpenAirDocs)
- Reported make and model: PIPER PA-22
- Registry model: [Piper PA-22-150](https://openairdocs.org/model/piper-pa-22-150) (registry code 7102210) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Boulder

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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