NTSB Identification: FTW83FU003.
The docket is stored on NTSB microfiche number 25569.
Accident occurred Friday, August 26, 1983 in KELLER, TX
Aircraft: ROTEC RALLY 2B, registration: NONE
Injuries: 1 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.

AFTER ASSEMBLING HIS ULTRALIGHT, THE PLT RECEIVED DUAL INSTRUCTION IN A 2 PLACE MODEL. AFTER HIS 2ND DUAL FLT, HE TOLD HIS INSTRUCTOR (CFI) HE HAD SOLOED HIS VEHICLE. THE CFI CAUTIONED HIM AGAINST FURTHER SOLO FLTS UNTIL HE WAS QUALIFIED &EMPHASIZED THE NEED TO WEAR A HELMET. 3 DAYS LATER, WITNESSES SAW THE VEHICLE CRUISING AT APRX 300 TO 500 FT AGL WHEN ITSUDDENLY ROLLED RIGHT & ENTERED A STEEP NOSE DOWN ATTITUDE & CRASHED. NONE OF THE WITNESSES COULD VERIFY THE ENG STATUS BEFORE IMPACT. NEITHER OF THE PROP BLADES HAD ROTATIONAL DAMAGE, BUT 1 BLADE BROKE WHEN IT HIT THE GROUND. THE ENG WAS STARTED WITH FUEL REMAINING IN THE FUEL TANK & OPERATED NORMALLY. THE IGNITION SWITCH WAS MOUNTED ON THE CONTROL STICK NEXT TO THE TWIST GRIP THROTTLE & WAS FOUND IN THE OFF POSITION. THE ENG WAS EQUIPPED WITH A CENTRIFUGAL CLUTCH & COULD NOT BE STARTED BY A WINDMILLING PROP. THE PLT WAS NOT WEARING A HELMET & HAD SUFFERED EXTENSIVE HEAD INJURIES. HIS CFI HAD WARNED HIM THAT HIS SPOILER LINES WERE TOO TIGHT & COULD RESULT IN UNWANTED SPOILER ACTION WTIH AFT STICK MOVEMENT.

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

IGNITION SYSTEM..SWITCHED OFF

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

FLT CONTROL SYST,WING SPOILER SYSTEM..INCORRECT

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

MAINTENANCE,ADJUSTMENT..IMPROPER..PILOT IN COMMAND

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

POWERPLANT CONTROLS..IMPROPER USE OF..PILOT IN COMMAND

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

FLT CONTROL SYST,WING SPOILER SYSTEM..DEPLOYED INADVERTENTLY


Contributing Factors

LACK OF TOTAL EXPERIENCE IN TYPE OF AIRCRAFT..PILOT IN COMMAND


Contributing Factors

INADEQUATE TRANSITION/UPGRADE TRAINING..PILOT IN COMMAND


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