NTSB Identification: MIA88IA068.
The docket is stored on NTSB microfiche number 35746.
Scheduled 14 CFR
Incident occurred Sunday, December 20, 1987 in TAMPA, FL
Probable Cause Approval Date: 07/10/1989
Aircraft: BEECH 99, registration: N6724D
Injuries: 5 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

THE COMMUTER AIR CARRIER CREW RECEIVED AN UNSAFE NOSE GEAR INDICATION ON FINAL APPROACH. THE APPROACH WAS ABANDONED AND ALL EFFORTS TO USE THE EMERGENCY EXTENSION PROCEDURES WERE TO NO AVAIL. THE CREW SECURED BOTH ENGINES ON FINAL AND LANDED NOSE GEAR UP. EXAMINATION REVEALED THAT ALL HYDRAULIC PRESURE WAS LOST DUE TO A RIGHT MAIN LANDING GEAR ACTUATOR END CAP FAILING IN FATIGUE.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

LANDING GEAR,NORMAL RETRACTION/EXTENSION ASSEMBLY..DISABLED

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

HYDRAULIC SYSTEM,FITTING..FATIGUE

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

HYDRAULIC SYSTEM..LEAK


Contributing Factors

ACFT/EQUIP,INADEQUATE DESIGN..MANUFACTURER

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