# NTSB UNK65X1103: Aero Cmdr 680E, N58G, Jacksonville, FL, December 23, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 23, 1964
- Place: Jacksonville, FL · JACKSONVILLE, FL
- Location: 30.3322° N, 81.6557° W: Placed by OpenAirDocs: center of Jacksonville, FL, within about 15 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.3322&lon=-81.6557&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 17, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 180424
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK65X1103
- Page: https://openairdocs.org/ntsb/UNK65X1103

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3923  64/12/23   JACKSONVILLE FLA    AERO CMDR 680E      CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 41, 6000
        TIME - 1758                    N58G                PX-  0  0  1  BUSINESS                  TOTAL HOURS, 300 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - IMESON FIELD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAXI: FROM LANDING
           COLLIDED WITH: FENCE,FENCEPOSTS                          TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           SYSTEMS - HYDRAULIC SYSTEM: RESERVOIR,LINES,FITTINGS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- MATERIAL FAILURE OF HYDRAULIC LINE ELBOW P/N AN822-60 AT PUMP.EMERGENCY BRAKE SYSTEM NOT USED.
```

## Aircraft

- Registration: [N58G](https://openairdocs.org/aircraft/N58G), registered now, S/N 680-519-189, built 1957 (OpenAirDocs)
- Reported make and model: AERO CMDR 680E
- Registry model: [Aero Commander 680](https://openairdocs.org/model/aero-commander-680) (registry code 0141602) (OpenAirDocs)
- Registry engine: [Lycoming GSO&IGSO-480 series](https://openairdocs.org/engine/lycoming-gso-igso-480-series) (registry code 41529, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Imeson Field

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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