Pittsburgh Int'l Airport
Aircraft Accident/Incident Report

Pittsburgh, Pennsylvania 15231
Monday, October 12, 1992 10:15 EDT

NTSB Narrative Summary Released at Completion of Accident

THE AIR CARRIER B 737 300 WAS ON TAKEOFF ROLL, WHEN THE AIRCREW WAS ADVISED BY OTHER AIRPLANES THAT 'SMOKE AND FLAMES WERE...COMING FROM THE RIGHT ENGINE.' THE CREW ABORTED THE TAKEOFF, STOPPED THE AIRPLANE ON THE RUNWAY AND ORDERED AN EVACUATION BY THE EMERGENCY SLIDES. NONE OF THE 5 CREWMEMBERS NOR THE 128 PASSENGERS WERE INJURED. THE ENGINE FIRE WAS SUPPRESSED WHEN THE ENGINE WAS SHUTDOWN. THE FAILURE WAS CONTAINED TO THE ENGINE INTERIOR. EXAMINATION OF THE ENGINE REVEALED A HIGH CYCLE FATIGUE FAILURE OF 2 BLADES OF THE STAGE 1 HIGH PRESSURE COMPRESSOR.

NTSB Probable Cause Narrative

THE HIGH CYCLE FATIGUE FAILURE OF BLADES ON THE STAGE 1 HIGH PRESSURE COMPRESSOR, WHICH RESULTED IN BLADE FRACTURE AND SUBSEQUENT INTERNAL ENGINE DAMAGE AND FIRE.

Event Information

Type of Event Incident
Event Date 10/12/1992
Event Day of the Week Monday
Time of Event 1015
Event Time Zone Eastern Daylight Time
Event City PITTSBURGH
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 15231
Event Date Year 1992
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PITTSBURGH INT'L
Event Location Nearest Airport ID PIT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 1203
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 0
Lowest Non-Ceiling Height 9000
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) 7
Air Temperature at event time (in degrees celsius) 8
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 250
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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 133
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 5043
NTSB Notification Source --
NTSB Notification Date Oct 12 1992 12:00AM
NTSB Notification Time 1140
Fiche Number and/or location -used to find docket information 48095
Date of most recent change to record Dec 11 2000 3:24PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N586US
NTSB Number NYC93IA017
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage None
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name BOEING
Aircraft Model 737-300
Aircraft Series Identifier 737-300
Aircraft Serial Number 23931
Certified Max Gross Weight 138500
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 133
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Oct 8 1992 12:00AM
Airframe hours since last inspection 20
Airframe Hours 15560
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name USAIR
Aircraft Owner Street Address 2345 CRYSTAL DR.
Aircraft Owner City ALEXANDRIA
Aircraft Owner State VA
Aircraft Owner Country
Aircraft Owner Zipcode 22227
Operator is an individual? --
Operator Name USAIR
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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 PIT
Departure City
Departure State
Departure Country
Departure Time 1015
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code CLT
Destination City CHARLOTTE
Destination State NC
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 28
Runway Length 8039
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --