# NTSB CHI69A0066: Lockheed 18, N650WK, Detroit, MI, January 19, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 19, 1969
- Place: Detroit, MI · DETROIT, MI
- Location: 42.3314° N, 83.0458° W: Placed by OpenAirDocs: center of Detroit, MI, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.3314&lon=-83.0458&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 19, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 191489
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI69A0066
- Page: https://openairdocs.org/ntsb/CHI69A0066

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0023  69/1/19    DETROIT,MICH        LOCKHEED 18         CR-  0  0  2  NONCOMMERCIAL             COMMERCIAL, AGE 44, 7000
        TIME - 0821                    N650WK              PX-  0  0  0  CORP/EXEC                 TOTAL HOURS, 900 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - DETROIT METRO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           SYSTEMS - HYDRAULIC SYSTEM: RESERVOIR,LINES,FITTINGS
           MISCELLANEOUS ACTS,CONDITIONS - OVER TORQUED
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           AIRFRAME - LANDING GEAR: LANDING GEAR WARNING AND INDICATING COMPONENTS
        REMARKS- RT GR HYD LINE TO GR DOWNLOCK FAILED.REDUCER THREADS SPLIT,TIME UNDET. GR WRNG SYS SHOWED GR DOWN.
```

## Aircraft

- Registration: [N650WK](https://openairdocs.org/deregistered/N650WK-2021-04-16), registration cancelled 2021-04-16, S/N 2339, built 1942 (OpenAirDocs)
- Reported make and model: LOCKHEED 18
- Registry model: [Lockheed 18-56](https://openairdocs.org/model/lockheed-18-56) (registry code 5261642) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-1830 series](https://openairdocs.org/engine/pratt-whitney-r-1830-series) (registry code 52020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Detroit Metro

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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