NTSB Identification: SEA96LA126.
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Accident occurred Tuesday, June 18, 1996 in JACKSON, WY
Probable Cause Approval Date: 02/28/1997
Aircraft: PRICE BERKUT, registration: N538AJ
Injuries: 1 Uninjured.

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

As the pilot approached his destination, the landing gear 'transition' light illuminated indicating operation of the hydraulic pump, although the landing gear was still retracted. When the pilot lowered the landing gear, they failed to extend. He then manually lowered the gear, but was unable to obtain green 'down and locked' indicator lights for the main gear. During the landing, the main gear collapsed, and the aircraft impacted several runway lights. Postcrash examination revealed that the electrically driven hydraulic pump had burned out. Additionally, the over-center downlock springs, which were to assist in manually locking the gear into a down-and-locked condition during manual extension, had never been installed by the builder/previous owner.

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

failure of the electrically driven hydraulic pump; and the absence of the main landing gear over-center downlock springs, which were not installed by the previous owner/builder.

Full narrative available

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