NTSB Identification: ATL84FA100.
The docket is stored on NTSB microfiche number 25424.
Accident occurred Friday, February 17, 1984 in CULLMAN, AL
Aircraft: BELL 47GL, registration: N12KH
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 PLT HAD JUST COMPLETED AN ENG OVERHAUL & WAS TEST FLYING THE HELICOPTER. WHILE MANEUVERING AT APRX 100 FT AGL, THE ENG LOST POWER & THE PLT INITIATED AN AUTOROTATION. DURING THE LANDING, THE HELICOPTER IMPACTED HARD ON RISING TERRAIN, ROLLED ONTO ITS SIDE & BURNED. AN INVESTIGATION REVEALED THAT THE ENG HAD SEIZED. CONTAMINATION HAD ENTERED THE OIL SYSTEM DURING THE OVERHAUL WHICH HAD RESULTED IN THE SEIZURE. THE PLT WAS NOT A CERTIFIED POWERPLANT MECHANIC.

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

LUBRICATING SYSTEM..CONTAMINATION

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

MAINTENANCE,OVERHAUL..IMPROPER..UNQUALIFIED PERSON

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

FLUID,OIL..STARVATION




Contributing Factors

TERRAIN CONDITION..RISING

Index for Feb1984 | Index of months