Laguardia Airport
Aircraft Accident/Incident Report

Flushing, New York
Sunday, March 22, 1992 21:35 EST

NTSB Narrative Summary Released at Completion of Accident

THE AIRPLANE HAD BEEN DEICED 2 TIMES BEFORE LEAVING THE GATE. HOWEVER, 35 MINUTES HAD ELAPSED BETWEEN THE 2ND DEICING & TAKEOFF DURING WHICH TIME ICE ACCUMULATED ON THE WING. THIS TIME PERIOD EXCEEDED THE TYPE I DEICING FLUID SAFE HOLDOVER TIME (11 MIN). THE 1ST OFFICER CALLED VR 11 KTS EARLY, AND THE CAPT ROTATED ABOUT 5 KTS EARLY. AFTER LIFTOFF THE AIRPLANE STALLED AND CAME TO REST PARTIALLY INVERTED AND SUBMERGED IN THE BAY. AT THE TIME OF THE ACCIDENT, THE OPERATOR DID NOT REQUIRE A SPECIFIC EXTERIOR INSPECTION FOR ICE CONTAMINATION OF F-28 AIRPLANES DURING PERIODS OF FREEZING PRECIPITATION. ACCIDENT HISTORY SHOWS THAT NONSLATTED, TURBOJET, TRANSPORT-CATEGORY AIRPLANES HAVE BEEN INVOLVED IN A DISPROPORTIONATE NUMBER OF TAKEOFF ACCIDENTS WHERE UNDETECTED UPPER WING ICE CONTAMINATION HAS BEEN CITED AS THE PROBABLE CAUSE OR SOLE CONTRIBUTING FACTOR.

NTSB Probable Cause Narrative

THE FAILURE OF THE AIRLINE INDUSTRY AND THE FEDERAL AVIATION ADMINISTRATION TO PROVIDE FLIGHTCREWS WITH PROCEDURES, REQUIREMENTS, AND CRITERIA COMPATIBLE WITH DEPARTURE DELAYS IN CONDITIONS CONDUCIVE TO AIRFRAME ICING AND THE DECISION BY THE FLIGHTCREW TO TAKE OFF WITHOUT POSITIVE ASSURANCE THAT THE AIRPLANE'S WINGS WERE FREE OF ICE ACCUMULATION AFTER 35 MINUTES OF EXPOSURE TO PRECIPITATION FOLLOWING DEICING. THE ICE CONTAMINATION ON THE WINGS RESULTED IN AN AERODYNAMIC STALL AND LOSS OF CONTROL AFTER LIFTOFF. CONTRIBUTING TO THE CAUSE OF THE ACCIDENT WERE THE INAPPROPRIATE PROCEDURES USED BY, AND INADEQUATE COORDINATION BETWEEN, THE FLIGHTCREW THAT LED TO A TAKEOFF ROTATION AT A LOWER THAN PRESCRIBED AIRSPEED. (NTSB REPORT AAR-93/020)

Event Information

Type of Event Accident
Event Date 3/22/1992
Event Day of the Week Sunday
Time of Event 2135
Event Time Zone Eastern Standard Time
Event City FLUSHING
Event State NEW YORK
Event Country --
Zipcode of the event site
Event Date Year 1992
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport LAGUARDIA
Event Location Nearest Airport ID LGA
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 22
Weather Briefing Completeness Unknown
Investigator's weather source Unknown
Time of the weather observation 2145
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID LGA
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Night/Dark
Lowest Ceiling Height 700
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Obscured
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0.75
Air Temperature at event time (in degrees celsius) 0
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Unknown
Wind Speed (knots) 13
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 0
Intensity of Precipitation Light
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 27
Injury Total Minor 12
Injury Total None 3
Injury Total Serious 9
Injury Total All 48
Investigating Agency NTSB
NTSB Docket Number (internal use) 1045
NTSB Notification Source --
NTSB Notification Date Mar 22 1992 12:00AM
NTSB Notification Time 2200
Fiche Number and/or location -used to find docket information 45540
Date of most recent change to record Dec 11 2000 2:47PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N485US
NTSB Number DCA92MA025
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Unknown
Aircraft Explosion Unknown
Aircraft Manufacturer's Full Name FOKKER
Aircraft Model 28-4000
Aircraft Series Identifier 28-4000
Aircraft Serial Number 11235
Certified Max Gross Weight 73000
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 85
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 12462
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name USAIR, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2345 CRYSTAL DRIVE
Operator City ARLINGTON
Operator State VA
Operator Country
Operator Zip code 22227
Operator Code USAA
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 Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 2135
Departure Time Zone EST
Destination Same as Local Flt --
Destination Airport Code CLE
Destination City CLEVELAND
Destination State OH
Destination Country
Specific Phase of Flight Takeoff
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 13
Runway Length 7000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --