Washington/Dulles Intl Airport
Aircraft Accident/Incident Report

Chantilly, Virginia 22021
Thursday, December 17, 1987 19:36 EST

NTSB Narrative Summary Released at Completion of Accident

THE ACFT HAD DESCENDED THROUGH A CLOUD LAYER ENROUTE FOR THE SCHEDULED LNDG AT IAD AND ACCORDING TO THE CREW HAD PICKED UP SOME TRACE RIME ICE ON ITS WING SURFACES. ALTHOUGH PITOT AND SAS (STALL AVOIDANCE SYSTEM) HEAT WERE USED THE CAPTAIN ELECTED NOT TO USE ENGINE INLET ANTI-ICE. JUST INSIDE THE OUTER MARKER THE LEFT ENGINE LOST POWER FOLLOWED SHORTLY BY THE RIGHT ENGINE. THE CAPTAIN WAS ABLE TO SET THE ACFT DOWN IN AN OPEN FIELD WHERE THE GEAR COLLAPSED DURING THE LANDING ROLL. THE ENGINES WERE SUCCESSFULLY RUN-UP AT THE GARRETT FACILITY. THE FLT MANUAL CONTAINS A WARNING AND A NOTE STATING THAT ENGINE HEAT AND CONTINUOUS IGNITION MUST BE USED AFTER LEAVING ICING CONDITIONS UNTIL THE PLT IS CONFIDENT THAT ANY SIGNIFICANT RESIDUAL ICE WILL NOT BE INJESTED INTO THE ENGINES. ICE WAS FOUND LYING BENEATH THE RT WING WHICH MATCHED THE CURVATURE OF THE LEADING EDGE OF THE WING. A ROUND CONICAL SHAPED PIECE OF ICE WAS FOUND ALONG THE WRECKAGE PATH WHICH MATCHED THE NOSE OF THE PROPELLER SPINNER.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 12/17/1987
Event Day of the Week Thursday
Time of Event 1936
Event Time Zone Eastern Standard Time
Event City CHANTILLY
Event State VIRGINIA
Event Country --
Zipcode of the event site 22021
Event Date Year 1987
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport WASHINGTON/DULLES INTL
Event Location Nearest Airport ID IAD
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 4
Degrees magnetic from airport 180
Airport Elevation 313
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1953 Eastern Standard Time
Direction of event from weather observation facility (degrees) 12
Weather Observation Facility ID IAD
Elevation of weather observation facility 313
Distance of event from weather observation facility (units?) 4
Time Zone of the weather observation EST
Lighting Conditions Night/Dark
Lowest Ceiling Height 4200
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
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) 2
Dew Point at event time (in degress fahrenheit) -7
Wind Direction (degrees magnetic) 330
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 6
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 2401
NTSB Notification Source --
NTSB Notification Date Dec 17 1987 12:00AM
NTSB Notification Time 2100
Fiche Number and/or location -used to find docket information 36395
Date of most recent change to record Dec 13 2000 3:03PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N23AZ
NTSB Number BFO88FA010
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name SWEARINGEN
Aircraft Model SA-226
Aircraft Series Identifier SA-226
Aircraft Serial Number TC-260
Certified Max Gross Weight 12500
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 19
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Dec 10 1987 12:00AM
Airframe hours since last inspection 38
Airframe Hours 12820
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SURBURBAN FUNDING CORP.
Aircraft Owner Street Address 6610 ROCKLEDGE DRIVE
Aircraft Owner City BETHESDA
Aircraft Owner State MD
Aircraft Owner Country
Aircraft Owner Zipcode 20817
Operator is an individual? --
Operator Name AVAIR INCORPORATED
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code FAVA
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 Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code EWR
Departure City NEWARK
Departure State NJ
Departure Country
Departure Time 1831
Departure Time Zone EST
Destination Same as Local Flt --
Destination Airport Code IAD
Destination City CHANTILLY
Destination State VA
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 1R
Runway Length 11500
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --