# NTSB DEN71FXD34: Amer Avco AA-1, N5610L, Aurora, CO, November 11, 1970

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: November 11, 1970
- Place: Aurora, CO · AURORA, CO
- Location: 39.7294° N, 104.8319° W: Placed by OpenAirDocs: center of Aurora, CO, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7294&lon=-104.8319&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report August 9, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 158931
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN71FXD34
- Page: https://openairdocs.org/ntsb/DEN71FXD34

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4154  70/11/11   AURORA,COLO         AMER AVCO AA-1      CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1230                    N5610L              PX-  0  0  0  DUAL                      AGE 23, 996 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            130 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - SKY RANCH
        DEPARTURE POINT             INTENDED DESTINATION
          AURORA,COLO                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           DUAL STUDENT - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        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                  TEMPERATURE-F
          NONE                                                      46
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           45                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- ENTERED NOSE HI ATTITUDE AFTER T/O. NEAR GROSS WT,L QUARTERING TAIL WIND 10K.DENSITY ALT 6200 FT.
```

## Aircraft

- Registration: [N5610L](https://openairdocs.org/deregistered/N5610L-1972-01-02), registration cancelled 1972-01-02, S/N AA1-0012 (OpenAirDocs)
- Reported make and model: AMER AVCO AA-1
- Registry model: [American AA-1](https://openairdocs.org/model/american-aa-1) (registry code 0630610) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sky Ranch

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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