# NTSB DEN79DTE39: Maule M-4, N4623T, Englewood, CO, May 26, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 26, 1979
- Place: Englewood, CO · ENGLEWOOD, CO
- Location: 39.6470° N, 104.9945° W: Placed by OpenAirDocs: center of Englewood, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.6470&lon=-104.9945&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 27, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135926
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN79DTE39
- Page: https://openairdocs.org/ntsb/DEN79DTE39

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1844  79/5/26    ENGLEWOOD,CO        MAULE M-4           CR-  0  0  1  MISCELLANEOUS             PRIVATE, AGE 53, 648
        TIME - 1100                    N4623T              PX-  0  0  1  TEST                      TOTAL HOURS, 12 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - ARAPAHOE COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          ENGLEWOOD,CO                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           MISCELLANEOUS - UNQUALIFIED PERSON OPERATED AIRCRAFT
        REMARKS- NON-RATED MECHANIC AT CONTROLS OF AIRCRAFT
```

## Aircraft

- Registration: [N4623T](https://openairdocs.org/aircraft/N4623T), registered now, S/N 91 (OpenAirDocs)
- Reported make and model: MAULE M-4
- Registry model: [Maule M-4](https://openairdocs.org/model/maule-m-4) (registry code 5460104) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Arapahoe County

## 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 19790526009379A](https://openairdocs.org/incident/19790526009379A), May 26, 1979: Maule M4, Englewood, CO, Substantial damage. Pilot lost directional control on landing and ground looped.

## Other investigations on N4623T (3)

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 ANC99LA152](https://openairdocs.org/ntsb/ANC99LA152), Sep 24, 1999: Maule ML-4 (N4623T), Anchorage, AK, substantial damage. Probable cause: The improper (reversed) connection of the elevator control cables by the owner/pilot-mechanic, and the failure to have the installation inspected by another mechanic.
- [NTSB ANC90LA081](https://openairdocs.org/ntsb/ANC90LA081), Jun 1, 1990: Maule M4 (N4623T), L. Susitna Riv, AK, substantial damage. Probable cause: THE PILOT'S FUEL MISMANAGEMENT IN NOT HAVING SUFFICIENT FUEL TO REACH HIS DESTINATION.
- [NTSB SEA83LA200](https://openairdocs.org/ntsb/SEA83LA200), Sep 3, 1983: Maule M-4 (N4623T), Monroe, WA, 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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