NTSB Identification: DEN84FA027.
The docket is stored on NTSB microfiche number 23330.
Accident occurred Sunday, November 20, 1983 in BOULDER, CO
Aircraft: GRUMMAN AMERICAN AA-5B, registration: N28420
Injuries: 4 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.

ACCORDING TO WITNESSES, THE PLT HAD MADE 3 ATTEMPTS TO LAND & DURING EACH ATTEMPT HE OVERSHOT HIS APPROACH & EXECUTED A GO-AROUND WITHOUT TOUCHING DOWN. ON THE FOURTH ATTEMPT HE DID TOUCH DOWN BUT APPEARED TO BE TOO FAST & THE ACFT SKIPPED & BOUNCED. AFTER PASSING HALFWAY DOWN THE 4,100 FT RWY, THE ACFT BEGAN PORPOISING & THE WINGS WERE ROCKING BACK & FORTH. JUST BEFORE REACHING THE END OF THE RWY, THE ACFT DRIFTED OFF THE RIGHT SIDE STRIKING A RWY LIGHT. THE WITNESSES HEARD THE ENG RPM INCREASE & THEY WATCHED THE ACFT STAGGER OFF THE GROUND UNTIL IT DISAPPEARED BEHIND A STEEP DROP-OFF ABOUT 300 FT FROM THE DEPARTURE END OF THE RWY. THE ACFT IMPACTED AT THE BOTTOM OF A RAVINE, FLIPPED OVER & IMMEDIATELY CAUGHT FIRE. TEN DAYS BEFORE THE ACCIDENT THE PLT RECEIVED A 1.6-HR CHECK-OUT IN THE ACFT. HE DID NOT FLY AGAIN UNTIL THE ACCIDENT FLT.

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

AIRSPEED..MISJUDGED..PILOT IN COMMAND

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

PROPER CLIMB RATE..NOT ATTAINED..PILOT IN COMMAND

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

DISTANCE..MISJUDGED..PILOT IN COMMAND

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

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

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

GO-AROUND..DELAYED..PILOT IN COMMAND


Contributing Factors

ABORTED LANDING..PERFORMED..PILOT IN COMMAND

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