Pullman/Moscow Reg. Airport
Aircraft Accident/Incident Report

Pullman, Washington 99163
Saturday, March 16, 1991 16:53 PST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT OF THE CESSNA 140 STATED THAT HE ENCOUNTERED WAKE TURBULENCE ON SHORT FINAL. THE AIRCRAFT ROLLED TO THE RIGHT. HE ATTEMPTED A RECOVERY, BUT THE AIRCRAFT SUSTAINED A HARD LANDING, COLLAPSING THE RIGHT MAIN LANDING GEAR, RESULTING IN A GROUND-LOOP TO THE RIGHT. A SWEARINGEN COMMUTER AIRCRAFT HAD LANDED ON THE RUNWAY A FEW MINUTES EARLIER.

NTSB Probable Cause Narrative

THE PILOT'S ENCOUNTER WITH WAKE TURBULENCE SHORTLY BEFORE TOUCHDOWN, RESULTING IN A HARD LANDING.

Event Information

Type of Event Accident
Event Date 3/16/1991
Event Day of the Week Saturday
Time of Event 1653
Event Time Zone Pacific Standard Time
Event City PULLMAN
Event State WASHINGTON
Event Country --
Zipcode of the event site 99163
Event Date Year 1991
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PULLMAN/MOSCOW REG.
Event Location Nearest Airport ID PUW
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 2551
Weather Briefing Completeness Unknown
Investigator's weather source Witness
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 0
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Unknown
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) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
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) 181
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 43264
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2455N
NTSB Number SEA91LA068
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 140
Aircraft Series Identifier 140
Aircraft Serial Number 12708
Certified Max Gross Weight 1500
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name CHARLES F. ROPER
Aircraft Owner Street Address 410 LEINUM CT
Aircraft Owner City CHENEY
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 99004
Operator is an individual? --
Operator Name CHARLES F. ROPER
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 410 LEINUM CT
Operator City CHENEY
Operator State WA
Operator Country
Operator Zip code 99004
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 72S
Departure City ROSALIA
Departure State WA
Departure Country
Departure Time 1430
Departure Time Zone PST
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
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 5
Runway Length 6731
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --