NTSB Identification: SEA90FA036.
The docket is stored on NTSB microfiche number 41308.
Accident occurred Saturday, January 20, 1990 in LONGMIRE, WA
Probable Cause Approval Date: 12/15/1992
Aircraft: PIPER PA-18, registration: N7216K
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE ACFT IMPACTED IN A VOLCANIC CRATER AT 14,200 FT MSL ON MT RAINIER, WHILE THE PLT WAS ON A SIGHT-SEEING FLIGHT. THERE WAS NO RADIO COMMUNICATION, RADAR TRACK, OR WITNESSES TO THE ACCIDENT. LACK OF ACCESS PRECLUDED EXAMINATION OF THE ACCIDENT SITE AND ACFT WRECKAGE.

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

UNDETERMINED.

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