# NTSB DEN81FTM25: Rex Johnson AL-CAT, N4205D, Salt Lake City, UT, June 4, 1981

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: June 4, 1981
- Place: Salt Lake City, UT · SALT LAKE CITY, UT
- Location: 40.7608° N, 111.8910° W: Placed by OpenAirDocs: center of Salt Lake City, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.7608&lon=-111.8910&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report November 2, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 125242
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN81FTM25
- Page: https://openairdocs.org/ntsb/DEN81FTM25

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2492   81/6/4    SALT LAKE CITY,UT   REX JOHNSON AL-CAT  CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 28, 200
        TIME - 1750                    N4205D              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 0 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SALT LAKE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          SALT LAKE CITY,UT           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
        REMARKS- ENG NAME-HAP1 60-2P.PLT STATED REPLACED ELEVATOR W CARNARD WING-RESULTED IN UNCONTROLLABLE CLIMB.
```

## Aircraft

- Registration: N4205D (not matched to a registry record)
- Reported make and model: REX JOHNSON AL-CAT
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Salt Lake Muni

## 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 19810604050719A](https://openairdocs.org/incident/19810604050719A), Jun 4, 1981: Amtr ALLEYCAT, Salt Lake City, UT, Destroyed. Unable to control pitch on takeoff, stalled, dropped tail first to runway. Faulty design of canard.

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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