NTSB Identification: CHI84FA153.
The docket is stored on NTSB microfiche number 26821.
Accident occurred Sunday, April 15, 1984 in GARY, IN
Aircraft: MOONEY M20C, registration: N7899V
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.

VFR PLT RECEIVED 2 WX BRIEFINGS, FILED AN IFR FLT PLAN AND DEPARTED IN NIGHT IFR CONDITIONS. APRX 1 MIN AFTER CONTACTING CHICAGO ARTCC PLT REPORTED HE WAS HAVING 'PROBLEMS.' APRX 1 MIN LATER PLT REPORTED, 'NINE NINE VICTOR, I'M BREAKING UP.' ACFT WRECKAGE WAS FOUND NEXT DAY. ACCORDING TO PLT'S WIFE AND AN ASSOC, THE PLT HAD FLOWN IFR BEFORE. ANNUAL INSPECTION OF ACFT WAS COMPLETED ON 4/9/84. POST ACCIDENT INVESTIGATION DISCLOSED A CRACK IN THE PITOT TUBE LINE.

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

PLANNING/DECISION..POOR..PILOT IN COMMAND

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

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

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

AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND



Contributing Factors

PITOT/STATIC SYSTEM..CRACKED


Contributing Factors

MAINTENANCE,MAJOR REPAIR..POOR..OTHER MAINTENANCE PERSONNEL


Contributing Factors

WEATHER CONDITION..FOG


Contributing Factors

WEATHER CONDITION..LOW CEILING


Contributing Factors

LIGHT CONDITION..NIGHT


Contributing Factors

QUALIFICATION..PILOT IN COMMAND

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