# NTSB MKC72AK020: Amer Avco AA1, N5770L, Potwin, KS, September 25, 1971

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 25, 1971
- Place: Potwin, KS · POTWIN, KS
- Location: 37.9386° N, 97.0183° W: Placed by OpenAirDocs: center of Potwin, KS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9386&lon=-97.0183&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report May 18, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 163697
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC72AK020
- Page: https://openairdocs.org/ntsb/MKC72AK020

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3800  71/9/25  NR.POTWIN,KANS        AMER AVCO AA1       CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 36, 321
        TIME - UNK/NR                  N5770L              PX-  1  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          NEWTON,KANS                 BARTLESVILLE,OKLA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INITIATED FLIGHT IN ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - SPATIAL DISORIENTATION
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - RAIN
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        MISSING AIRCRAFT - LATER RECOVERED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  300
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1 MILE OR LESS                                           DRIZZLE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          NONE                                                     225
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           10                                                      BELOW MINIMUMS
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- TOOK OFF AND CONT FLT INTO KNOWN POOR WEA COND. RECOVERY DATE 9/26/71.
```

## Aircraft

- Registration: [N5770L](https://openairdocs.org/deregistered/N5770L-1971-10-19), registration cancelled 1971-10-19, S/N AA-1-0170 (OpenAirDocs)
- Reported make and model: AMER AVCO AA1
- Registry model: [American AA-1](https://openairdocs.org/model/american-aa-1) (registry code 0630610) (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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