# NTSB CHI73FEE58: Cessna 421, N354WP, Crystal Lake, IL, May 21, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 21, 1973
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report June 25, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 190290
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73FEE58
- Page: https://openairdocs.org/ntsb/CHI73FEE58

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1510  73/5/21    CRYSTAL LAKE,ILL    CESSNA 421          CR-  0  0  1  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1840                    N354WP              PX-  0  0  2  CORP/EXEC                 29, 4884 TOTAL HOURS, 405
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - CRYSTAL LAKE
        DEPARTURE POINT             INTENDED DESTINATION
          CHICAGO,ILL                 CRYSTAL LAKE,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- L TRUNION ASSEMBLY 5041102-1,END FITTING BRACE LOCK 0841101 AND BOLT SEPARATED.
```

## Aircraft

- Registration: [N354WP](https://openairdocs.org/deregistered/N354WP-2013-08-13), registration cancelled 2013-08-13, S/N 421-0014, built 1967 (OpenAirDocs)
- Reported make and model: CESSNA 421
- Registry model: [Cessna 421](https://openairdocs.org/model/cessna-421) (registry code 2076010) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Crystal Lake

## 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 19730521012849A](https://openairdocs.org/incident/19730521012849A), May 21, 1973: Cessna 421, Crystal Lake, IL, Substantial damage. L trunion assembly 5041102-1,end fitting brace lock 0841101 and bolt separated.

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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