# NTSB CHI73AC072: Lear 24, N100SQ, Belleville, MI, February 21, 1973

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: February 21, 1973
- Place: Belleville, MI · BELLEVILLE, MI
- Location: 42.1985° N, 83.4800° W: Placed by OpenAirDocs: center of Belleville, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.1985&lon=-83.4800&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal, 1 serious
- Status: Completed, report April 4, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 169951
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73AC072
- Page: https://openairdocs.org/ntsb/CHI73AC072

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0341  73/2/21    BELLEVILLE,MICH     LEAR 24             CR-  2  0  0  COMMERCIAL                ATP,FLIGHT INSTR., AGE
        TIME - 0956                    N100SQ              PX-  0  1  0  AIR TAXI-PASSG            36, 4998 TOTAL HOURS, 473
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - WILLOW RUN
        DEPARTURE POINT             INTENDED DESTINATION
          ST JOSEPH,MO                DETROIT,MICH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: LEVEL OFF/TOUCHDOWN
           COLLIDED WITH: OBJECT                                    LANDING: GO-AROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
           PILOT IN COMMAND - DELAYED IN INITIATING GO-AROUND
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        REMARKS- LANDED LONG,HIT LOC ANTENNAE AND ILS BLDG.DID NOT STOW SPOILERS ON GO AROUND.
```

## Aircraft

- Registration: [N100SQ](https://openairdocs.org/deregistered/N100SQ-2009-06-17), registration cancelled 2009-06-17, S/N 113 (OpenAirDocs)
- Reported make and model: LEAR 24
- Registry model: [Learjet 24](https://openairdocs.org/model/learjet-24) (registry code 5170302) (OpenAirDocs)
- Category: Airplane
- Engines: turbo jet
- Damage: Destroyed
- Airport: Willow Run

## 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 19730221003749A](https://openairdocs.org/incident/19730221003749A), Feb 21, 1973: Lear 24C, Belleville, MI, Destroyed. Landed long,hit LOC antennae and ILS bldg. Did not stow spoilers on go around.

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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