Aircraft Accident/Incident Report

Scappoose, Oregon 97056
Saturday, August 10, 1991 16:50 PDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT WAS PERFORMING AEORBATIC MANEUVERS AT A LOW ALTITUDE. WHILE MANEUVERING, THE AIRCRAFT ENTERED A POWER DIVE AND THE PILOT DID NOT RECOVER BEFORE IT IMPACTED THE GROUND IN A STEEP NOSE DOWN ATTITUDE.

NTSB Probable Cause Narrative

THE PILOT'S MISJUDGMENT OF ALTITUDE, WHILE PERFORMING AN AEROBATIC MANEUVER, AND HIS FAILURE TO MAINTAIN GROUND CLEARANCE.

Event Information

Type of Event Accident
Event Date 8/10/1991
Event Day of the Week Saturday
Time of Event 1650
Event Time Zone Pacific Daylight Time
Event City SCAPPOOSE
Event State OREGON
Event Country --
Zipcode of the event site 97056
Event Date Year 1991
Event Date Month 8
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 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1651 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 115
Weather Observation Facility ID PDX
Elevation of weather observation facility 27
Distance of event from weather observation facility (units?) 12
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 35
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) 350
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1335
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 43939
Date of most recent change to record Dec 12 2000 10:40AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N77PW
NTSB Number SEA91FA203
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CHRISTEN INDUSTRIES
Aircraft Model PITTS S-2B
Aircraft Series Identifier PITTS S-2B
Aircraft Serial Number 5181
Certified Max Gross Weight 1625
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 18 1991 12:00AM
Airframe hours since last inspection 16
Airframe Hours 159
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name EDWIN M. STANLEY
Aircraft Owner Street Address 205 SE SPOKANE ST
Aircraft Owner City PORTLAND
Aircraft Owner State OR
Aircraft Owner Country
Aircraft Owner Zipcode 97202
Operator is an individual? --
Operator Name EDWIN M. STANLEY
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 205 SE SPOKANE ST
Operator City PORTLAND
Operator State OR
Operator Country
Operator Zip code 97202
Operator Code
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code PDX
Departure City PORTLAND
Departure State OR
Departure Country
Departure Time 1635
Departure Time Zone PDT
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 Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
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 --