NTSB Identification: LAX86FA178.
The docket is stored on NTSB microfiche number 32860.
Accident occurred Tuesday, April 15, 1986 in BEAUMONT, CA
Aircraft: PIPER PA-28-181, registration: N28891
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.

WHEN THE NON-INSTRUMENT RATED PLT DEPARTED FOR THE FLT AT ABOUT 2110 HRS, THE WX CONDITIONS WERE MARGINAL AND DETERIORATING IN THE AREA. NO RECORD OF A WX BRIEFING WAS FOUND. FOR UNKN REASONS, THE PLT WAS RETURNING TO THE ARPT AFTER ABOUT 1 HR AND 20 MNS, ENTERED THE BANNING PASS FROM THE EAST AND ENCOUNTERED CEILINGS OF APRX 500 FT AGL AND VISIBILITIES OF 1 MI OR LESS IN FOG AND DRIZZLE. BY THE TIME THE PLT CONTACTED THE NORTON AFB ATCT, HE WAS UNABLE TO CLEARLY LOCATE HIS POSITION IN THE DARKNESS AND RESTRICTED VISIBILITIES. THE RADIO TRANSMISSION FROM THE PLT, 'WE'RE HAVING PROBLEMS GETTING IN VFR WE'RE GOING TO TRY TO CLIMB AND GET ABOVE THIS (WEATHER)' ESTABLISHED HIS INTENTION TO TRY AN INSTRUMENT CLIMB THROUGH THE CLOUDS TO FIND VFR CONDITIONS. THE WITNESSES OBSERVED THE ACFT ENTER THE BASE OF THE CLOUDS THEN DESCEND 'STRAIGHT DOWN OUT OF THE CLOUDS.' THE PHYSICAL EVIDENCE AT THE SITE ESTABLISHED THAT THE ACFT CONTACTED THE GROUND IN AN ATTITUDE CONSISTANT WITH A RIGHT SPIN.

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

VFR FLIGHT INTO IMC..INTENTIONAL..PILOT IN COMMAND

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

SPATIAL DISORIENTATION..PILOT IN COMMAND

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

STALL/SPIN..INADVERTENT..PILOT IN COMMAND

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

FLIGHT INTO KNOWN ADVERSE WEATHER..PERFORMED..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

PREFLIGHT PLANNING/PREPARATION..IMPROPER..PILOT IN COMMAND


Contributing Factors

IN-FLIGHT PLANNING/DECISION..POOR..PILOT IN COMMAND


Contributing Factors

LACK OF TOTAL INSTRUMENT TIME..PILOT IN COMMAND


Contributing Factors

BECAME LOST/DISORIENTED..INADVERTENT..PILOT IN COMMAND

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