# NTSB CHI72FEE82: Lowers Bird, N591T, Crystal Lake, IL, June 15, 1972

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: June 15, 1972
- Place: Crystal Lake, IL · CRYSTAL LAKE, IL
- Location: 42.2332° N, 88.3344° W: Placed by OpenAirDocs: center of Crystal Lake, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.2332&lon=-88.3344&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report October 20, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 166741
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI72FEE82
- Page: https://openairdocs.org/ntsb/CHI72FEE82

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0487  72/6/15    CRYSTAL LAKE,ILL    LOWERS BIRD         CR-  1  0  0  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1155                    N591T               PX-  0  0  0  PRACTICE                  30, 4191 TOTAL HOURS, 27
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - CRYSTAL LAKE
        DEPARTURE POINT             INTENDED DESTINATION
          CRYSTAL LAKE,ILL            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: ACROBATICS
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED ALTITUDE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - UNWARRANTED LOW FLYING
        MISSING AIRCRAFT - LATER RECOVERED
        REMARKS- OBS SAW ACFT ROLLING IN 45 DEG DIVE. DIDNT SEE IMPACT. RECOVERED FROM SWAMP 6/15/72.CHUTE NOT USED
```

## Aircraft

- Registration: [N591T](https://openairdocs.org/deregistered/N591T-2017-02-04), registration cancelled 2017-02-04, S/N 642, built 1964 (OpenAirDocs)
- Reported make and model: LOWERS BIRD
- Registry model: [Lowers B. I. R. D.](https://openairdocs.org/model/lowers-b-i-r-d) (registry code 05601SS) (OpenAirDocs)
- Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs)
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: Destroyed
- Airport: Crystal Lake

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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