NTSB Identification: LAX85FA202A.
The docket is stored on NTSB microfiche number 29522.
Accident occurred Sunday, April 14, 1985 in CAMP VERDE, AZ
Aircraft: CESSNA 172M, registration: N73708
Injuries: 2 Fatal,2 Serious,4 Uninjured.

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.

BOTH ACFT INVOLVED IN THE COLLISION WERE PART OF A 4-PLANE FORMATION FLT EN ROUTE TO A GROUP FLY-IN. N6439R WAS SEEN TO CHANGE POSITIONS SEVERAL TIMES DURING THE FLT WHILE THE OTHER ACFT REMAINED STABLE. REPORTS FROM WITNESSES SAY THAT N6439R MADE 'CLOSE APPROACHES' & 'CROSS UNDERS' OF THE OTHER ACFT IN THE FLT. THE PLT OF N73708 SAID THAT FROM OFF HIS RIGHT SIDE 39R BANKED LEFT TO APPROACH HIS ACFT. WHEN THE BANK ANGLE OF 39R HAD NOT CHANGED AT 50 YDS DISTANCE, THE PLT OF 708 SAID HE STARTED A HARD EVASSIVE LEFT TURN BUT THE PROP OF 39R STRUCK THE BOTTOM OF HIS ACFT. THE VERSION TOLD BY THE PLT OF 39R WAS IN DISAGREEMENT WITH THE EVIDENCE & THE MAJORITY OF THE WITNESSES. ALL 3 OF THE 100 HR PVT PLTS SAID THEY WERE UNCOMFORTABLE WITH WHAT THE PLT OF 39R WAS DOING, BUT SINCE HE HAD A COM/CFII & 900 HRS, THEY THOUGHT 'HE KNEW WHAT HE WAS DOING.'

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

IN-FLIGHT PLANNING/DECISION..POOR..PILOT IN COMMAND

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

STABILIZER..SEPARATION

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

AIRCRAFT HANDLING..NOT POSSIBLE..PILOT IN COMMAND

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

JUDGMENT..POOR..PILOT OF OTHER AIRCRAFT

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

CLEARANCE..MISJUDGED..PILOT OF OTHER AIRCRAFT

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

CLEARANCE..NOT MAINTAINED..PILOT IN COMMAND

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

IN-FLIGHT PLANNING/DECISION..POOR..PILOT OF OTHER AIRCRAFT

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

OSTENTATIOUS DISPLAY..PILOT OF OTHER AIRCRAFT

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

OVERCONFIDENCE IN PERSONAL ABILITY..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..GROUND

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