NTSB Identification: DEN83FA092.
The docket is stored on NTSB microfiche number 21774.
Accident occurred Monday, April 11, 1983 in SALT LAKE CITY, UT
Aircraft: BELL 206L-1, registration: N1759D
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.

THE HELICOPTER COLLIDED WITH THE SIDE OF A MOUNTAIN DURING A TURN AFTER DEPARTING FROM A HOSPITAL HELIPAD WHILE ON AN EMERGENCY MEDICAL FLT TO PICK UP A MEDICAL TEAM TO CARE FOR A CRITICALLY ILL CHILD. THE PLT WAS NOTIFIED AT 0510 BY HIS DISPATCHER. AFTER CHECKING WX, THE PLT CALLED BACK & SAID IF THEY WANT TO TRY IT THERE WOULD BE NO GUARANTEE. THE DISPATCHER RELAYED THAT THEY (MEDICAL CENTER) INDICATED A GREAT NEED TO GO. PRIOR TO DEPARTING THE PLT WAS HEARD TO SAY 'I FEEL REALLY UNCOMFORTABLE ABOUT THIS FLIGHT.' THE WITNESS STATED THE PLT HAD BEEN ROTATING (ROTORS) OUTSIDE A LONG TIME & WOULD LIFT OFF THE PAD & THEN SET IT BACK DOWN. FROM 0700 ON 5/7 TO 0545 ON 5/11, THE PLT WAS EITHER ON DUTY WITHTHE NAT'L GUARD, HOSPITAL, FLYING, OR GOING TO SCHOOL FOR A TOTAL OF ABOUT 74 HRS DURING A PERIOD OF ABOUT 95 HRS. HIS AVERAGE REST DURING THIS PERIOD WOULD HAVE BEEN ABOUT 5 HRS. THE ALTIMETER SETTING GIVEN TO THE PLT BY APPROACH CONTROL WAS 29.69. THE PLT'S ALT WAS FOUND SET AT 29.80, WHICH WOULD CAUSE THE ACFT TO BE 100 FT LOWER THAN INDICATED.

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

ALTIMETER SETTING..IMPROPER..PILOT IN COMMAND

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

FATIGUE(FLIGHT AND GROUND SCHEDULE)..PILOT IN COMMAND

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

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

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

MOTIVATION..PILOT IN COMMAND

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

ALTITUDE..INADEQUATE..PILOT IN COMMAND

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

SELF-INDUCED PRESSURE..PILOT IN COMMAND

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

PRESSURE INDUCED BY OTHERS..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

WEATHER CONDITION..RAIN


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY

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