Aircraft Accident/Incident Report

Walla Walla, Washington 99362
Wednesday, March 2, 1994 14:35 PST

NTSB Narrative Summary Released at Completion of Accident

THE AIRCRAFT DEVELOPED A SEVERE MISS WHILE DESCENDING TO APPLICATION HEIGHT. THE PILOT ATTEMPTED A FORCED LANDING, BUT THE AIRCRAFT NOSED OVER. WHEN THE ENGINE WAS INSPECTED, ONE CYLINDER WAS FOUND SPLIT. THE PILOT STATED THAT HE BELIEVED THAT THE MAGNETO MICARTA GEAR FAILED, CAUSING CROSS-FIRING, BLOWING THE DOOR OFF THE AIR CLEANER AND SPLITTING A CYLINDER.

NTSB Probable Cause Narrative

UNSUITABLE TERRAIN FOR A FORCED LANDING AFTER A LOSS OF POWER DUE TO A FAILED ENGINE CYLINDER. FACTORS INCLUDE A PARTIAL MAGNETO FAILURE.

Event Information

Type of Event Accident
Event Date 3/2/1994
Event Day of the Week Wednesday
Time of Event 1435
Event Time Zone Pacific Standard Time
Event City WALLA WALLA
Event State WASHINGTON
Event Country --
Zipcode of the event site 99362
Event Date Year 1994
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 971
NTSB Notification Source --
NTSB Notification Date Mar 2 1994 12:00AM
NTSB Notification Time 1510
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 10:52AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6612Q
NTSB Number SEA94LA072
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name GRUMMAN
Aircraft Model G-164
Aircraft Series Identifier G-164
Aircraft Serial Number 163B
Certified Max Gross Weight 7020
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 3 1994 12:00AM
Airframe hours since last inspection 7
Airframe Hours 4840
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BLUE MOUNTAIN AVIATION
Aircraft Owner Street Address RT 4 BOX 175
Aircraft Owner City WALLA WALLA
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 99362
Operator is an individual? --
Operator Name BLUE MOUNTAIN AVIATION
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address RT 4 BOX 175
Operator City WALLA WALLA
Operator State WA
Operator Country
Operator Zip code 99362
Operator Code WZDG
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1428
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --