# NTSB SEA72AS019: Cessna 150L, Ulm, MT, November 9, 1971

- Type: NTSB accident investigation
- Date: November 9, 1971
- Place: Ulm, MT · ULM, MT
- Location: 47.4214° N, 111.5233° W: Placed by OpenAirDocs: center of Ulm, MT, within about 6 miles (OpenAirDocs)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: DirectorBrief, November 1, 1972
- NTSB case key (mKey): 164638
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA72AS019
- Page: https://openairdocs.org/ntsb/SEA72AS019

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4544   71/11/9   ULM,MONT            CESSNA 150L         CR-  1  0  0  INSTRUCTIONAL             STUDENT, AGE 22, 25 TOTAL
        TIME - UNK/NR                  N6691G              PX-  0  0  0  SOLO                      HOURS, ALL IN TYPE, NOT
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GREAT FALLS,MONT            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        MISSING AIRCRAFT - LATER RECOVERED
        REMARKS- IP TOLD PLT TO PRACTICE STALLS AND SLOW FLT ON HIS THIRD SOLO. PLT WAS MARGINAL.RECOVERED 11/10/71
```

## Sequence of events

- Uncontrolled descent

## Aircraft

- Registration: N6691G, a cancelled registration (https://openairdocs.org/deregistered/N6691G-1972-02-15) (OpenAirDocs)
- Reported make and model: CESSNA 150L
- Registry model: Cessna 150L (registry code 2071826, https://openairdocs.org/model/cessna-150l) (OpenAirDocs)
- Category: Airplane
- Damage: Destroyed

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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From OpenAirDocs.org, an independent open copy of NTSB and FAA data. The NTSB's own report is the official record of an investigation.