# NTSB CHI79FEE17: Hawker TMK20, N20SF, Waukegan, IL, December 16, 1978

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: December 16, 1978
- Place: Waukegan, IL · WAUKEGAN, IL
- Location: 42.3694° N, 87.8709° W: Placed by OpenAirDocs: center of Waukegan, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.3694&lon=-87.8709&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report February 20, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 138155
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI79FEE17
- Page: https://openairdocs.org/ntsb/CHI79FEE17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4475  78/12/16 NR.WAUKEGAN,IL        HAWKER TMK20        CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, AGE 51, 4757
        TIME - 1100                    N20SF               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 1 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - WAUKEGAN MEMORIAL
        DEPARTURE POINT             INTENDED DESTINATION
         WAUKEGAN,IL                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - PREMATURE LIFT-OFF
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           PERSONNEL - AIRPORT SUPERVISORY PERSONNEL: OTHER
         FIRE AFTER IMPACT
        REMARKS- PILOT LIVED THRU CRASH,DIED POST CRASH FIRE,10 MIN RESPONSE.FOREIGN ENG,OPPOSITE TORQUE.
```

## Aircraft

- Registration: [N20SF](https://openairdocs.org/aircraft/N20SF), registered now, S/N ES-9505, built 1956 (OpenAirDocs)
- Reported make and model: HAWKER TMK20
- Registry model: [Hawker SEA FURY TMK 20](https://openairdocs.org/model/hawker-sea-fury-tmk-20) (registry code 4220120) (OpenAirDocs)
- Registry engine: [Ford CONVERSION](https://openairdocs.org/engine/ford-conversion) (registry code 26701, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Waukegan Memorial

## 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 19781216044949A](https://openairdocs.org/incident/19781216044949A), Dec 16, 1978: Amtr 42201, IL, Destroyed

## Other investigations on N20SF (1)

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.

- [NTSB WPR14FA174](https://openairdocs.org/ntsb/WPR14FA174), Apr 27, 2014: Hawker SEA Fury TMK 20 (N20SF), Richmond, CA, substantial damage, 1 fatal. Probable cause: Both pilots’ failure to maintain adequate clearance from each other during cruise flight while in visual contact with each other. Contributing to the accident was the unexpected abrupt maneuver made…

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.