# NTSB NYC68F0180: Cessna 310K, N6921L, Block Island, RI, May 4, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 4, 1967
- Place: Block Island, RI · BLOCK ISLAND, RI
- Location: 41.1918° N, 71.5745° W: Placed by OpenAirDocs: center of Block Island, RI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.1918&lon=-71.5745&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report November 2, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 117335
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC68F0180
- Page: https://openairdocs.org/ntsb/NYC68F0180

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2732   67/5/4    BLOCK ISLAND,RI     CESSNA 310K         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 44, 3000
        TIME - 1545                    N6921L              PX-  0  0  2  BUSINESS                  TOTAL HOURS, 40 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BLOCK ISLAND
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: GEAR LOCKING MECHANISM
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: SUBSTANDARD QUALITY CONTROL
        REMARKS- R.MAIN LDG GR UNMACHINED LOWER SIDE LINK P/N 84L103 DID NOT ALLOW NECESSARY OVERCENTER TRAVEL.
```

## Aircraft

- Registration: [N6921L](https://openairdocs.org/deregistered/N6921L-2013-07-23), registration cancelled 2013-07-23, S/N 310K0021, built 1965 (OpenAirDocs)
- Reported make and model: CESSNA 310K
- Registry model: [Cessna 310K](https://openairdocs.org/model/cessna-310k) (registry code 2074228) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Block Island

## Other investigations on N6921L (3)

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 BFO95LA094](https://openairdocs.org/ntsb/BFO95LA094), Aug 29, 1995: Cessna 310K (N6921L), Columbiana, OH, destroyed. Probable cause: The improper maintenance installation and the subsequent separation of the torque links on the left main landing gear during the landing roll.
- [NTSB NYC68F0067](https://openairdocs.org/ntsb/NYC68F0067), Jul 7, 1967: Cessna 310K (N6921L), Deer Park, NY, substantial damage
- [NTSB NYC66F0609](https://openairdocs.org/ntsb/NYC66F0609), Apr 8, 1966: Cessna 310K (N6921L), Selden, NY, substantial damage

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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