On August 15, 1966, a Lockheed L-749 Constellation (registration N65) operated by Federal Aviation Administration - FAA was involved in an aviation accident near Tachikawa AFB (Tokyo), Japan during landing or approach. No fatalities were reported. Investigators recorded the probable cause as: Lack of familiarity with aircraft on part of the pilot-in-command who failed to use or incorrectly used the miscellaneous equipment. The pilot made an engine out, no boost, landing due to hydraulic leak. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.
During a calibration flight at Tachikawa AFB, Tokyo, the aircraft's undercarriage collapsed on touchdown. The five crew members were uninjured, but the aircraft was damaged beyond repair.
Incident Overview
A calibration flight at Tachikawa Air Force Base in Tokyo ended with the aircraft's undercarriage collapsing upon touchdown. The aircraft slid for several yards before coming to rest on the runway. All five crew members on board were uninjured, but the aircraft sustained damage beyond repair.
Findings
The official investigation reported the following findings:
The pilot-in-command displayed a lack of familiarity with the aircraft, failing to use or incorrectly using miscellaneous equipment.
The pilot executed an engine-out, no-boost landing due to a hydraulic leak.
Improper level-off was noted.
There was improper operation of brakes and/or flight controls.
Leaks were found in the flight controls system, boost systems, and hydraulic systems, including reservoirs, lines, and fittings.
Improper emergency procedures were followed.
A suspected mechanical discrepancy was identified.
Probable cause
Lack of familiarity with aircraft on part of the pilot-in-command who failed to use or incorrectly used the miscellaneous equipment. The pilot made an engine out, no boost, landing due to hydraulic leak.