# NTSB DEN72AD027: Amer Avco AA1A, N9249L, Tucson, AZ, December 19, 1971

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: December 19, 1971
- Place: Tucson, AZ · TUCSON, AZ
- Location: 32.2217° N, 110.9265° W: Placed by OpenAirDocs: center of Tucson, AZ, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.2217&lon=-110.9265&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 1 minor
- Status: Completed, report July 7, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 164923
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN72AD027
- Page: https://openairdocs.org/ntsb/DEN72AD027

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4219  71/12/19 NR.TUCSON,ARIZ        AMER AVCO AA1A      CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 29, 99 TOTAL
        TIME - 0235                    N9249L              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  HOURS, 93 IN TYPE, NOT
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         TUCSON,ARIZ                  WILLCOX,ARIZ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - ELECTRICAL FAILURE
           PILOT IN COMMAND - BECAME LOST/DISORIENTED
        MISSING AIRCRAFT - LATER RECOVERED
        REMARKS- RECOVERY DATE 12/21/71.FLEW INTO MTN SLOPE ABOUT 6 MI NORTH OF PLANNED CRSE.ALL ACFT LTG INOP.
```

## Aircraft

- Registration: [N9249L](https://openairdocs.org/deregistered/N9249L-1972-10-18), registration cancelled 1972-10-18, S/N AA1A-0149 (OpenAirDocs)
- Reported make and model: AMER AVCO AA1A
- Registry model: [American AA-1A](https://openairdocs.org/model/american-aa-1a) (registry code 0630710) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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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