NTSB Identification: CHI89FA030.
The docket is stored on NTSB microfiche number 42017.
Accident occurred Saturday, December 03, 1988 in VERMILLION, IL
Probable Cause Approval Date: 04/15/1991
Aircraft: MOONEY M20J, registration: N201UL
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 OWNER/PLT & AN INSTRUCTOR (CFI/CHECK PLT) DEPARTED TERRE HAUTE ON A LOCAL FLT TO PROVIDE A BIENNIAL FLT REVIEW (BFR) FOR THE OWNER/PLT. ABOUT 30 MIN LATER, A WITNESS HEARD THE ACFT'S ENG 'POWER UP' TO WHAT HE BELIEVED WAS A FULL POWER SETTING. HE THEN SAW THE ACFT DESCENDING 'STRAIGHT DOWN IN A CLOCKWISE SPIRAL WITH THE COCKPIT TO THE INSIDE OF THE TURN' UNTIL IT DISAPPEARED FROM HIS VIEW. AN INVESTIGATION REVEALED THE ACFT SUBSEQUENTLY IMPACTED THE GROUND IN A RIGHT SPIRALING DESCENT. THERE WAS NO HORIZONTAL MOVEMENT OF THE ACFT AFTER IMPACT. RECORDS SHOWED THAT THE PLT/OWNER HAD 1721 HRS OF FLT TIME WITH ABOUT 300 HRS IN THIS MAKE/MODEL; NO RECORD OF SPIN TRAINING WAS FOUND REGARDINGTHE OWNER/PLT. AN EXAM OF THE CFI/CHECK PLT'S FLT LOG SHOWED HE HAD A TOTAL FLT TIME OF 472 HRS (OF WHICH 271 HRS WAS AS A CFI); HOWEVER, THE CFI HAD LOGGED NO PREVIOUS FLT TIME IN ANY MOONEY ACFT. ON THIS FLT, THE PLT/OWNER WAS CONSIDERED TO THE PILOT-IN-COMMAND (PIC).

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

STALL/SPIN..NOT CORRECTED..PILOT IN COMMAND

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

SUPERVISION..INADEQUATE..OTHER CREWMEMBER



Contributing Factors

LACK OF TOTAL EXPERIENCE IN TYPE OF AIRCRAFT..OTHER CREWMEMBER

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