NTSB Identification: SEA86FA188.
The docket is stored on NTSB microfiche number 31524.
Accident occurred Saturday, August 09, 1986 in CLEVELAND, WA
Aircraft: GRUMMAN AA-5, registration: N5481L
Injuries: 1 Fatal,2 Serious.

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 LOW TIME PILOT DEPARTED WITH TWO RELATIVES ABOARD FOR A LOCAL FLIGHT. THE AIRCRAFT WAS OBSERVED FLYING LOW OVER OMAK LAKE AND THEN COMMENCING A CLIMBING LEFT TURN TOWARD HIGHER TERRAIN. DURING THE CLIMBOUT, THE PILOT PERCEIVED A LOSS OF ENGINE PERFORMANCE AND APPLIED CARBURETOR HEAT. OUTSIDE AIR TEMPERATURE WAS NEAR 100 DEGREES RESULTING IN A DENSITY ALTITUDE OF NEARLY 6,000 FEET MSL AND THE AIRCRAFT WAS NEAR ITS GROSS WEIGHT. THE AIRCRAFT WAS FLOWN WINGS LEVEL INTO TERRAIN WHOSE RATE OF UPSLOPE EXCEEDED THE RATE OF CLIMB CAPABILITIES OF THE AIRCRAFT FOR THE GIVEN CONDITIONS OF THE FLIGHT.

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

CARBURETOR HEAT..IMPROPER USE OF..PILOT IN COMMAND

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

CLEARANCE..INADEQUATE..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..HIGH DENSITY ALTITUDE


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

LACK OF TOTAL EXPERIENCE..PILOT IN COMMAND

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