Midland International Airport
Aircraft Accident/Incident Report

Midland, Texas 60305
Friday, November 2, 2001 7:34 CST

NTSB Narrative Summary Released at Completion of Accident

The transport airplane was in cruise flight at flight level 390 for 12 minutes when they received an "engine oil filter bypass" fault message on the engine centralized aircraft monitoring (ECAM) system; however, all of the engine parameters remained within limits. Subsequently, the oil pressure indication for the #1 (left) engine rose into the red band and a "high vibration and a thumping sound" was felt and heard. The flight crew then declared an emergency and diverted to another airport. The captain reported that during the landing roll, he moved both throttle levers into reverse, and simultaneously the cockpit and cabin began to fill with smoke. Air traffic controllers reported they observed white smoke emanating from the #1 engine during the landing roll. The captain stopped the airplane on the high-speed taxiway, turned off both engines, and an emergency evacuation ensued. The 1L and 2L doors were operated normally; however, the 1R door jammed when the flight attendant attempted to open it. Examination of the 1R door actuator and slide did not reveal the reason it failed to operate. Examination of the engine revealed that debris contamination of the #3 bearing initiated spallation of the bearing's outer ring raceway. Cyclic loading from the bearing balls passing over the growing raceway spall resulted in extensive fretting of the outer diameter surface of the outer ring, from which a fatigue crack was initiated. High-cycle fatigue progression radially through the outer ring was followed by rapid fracture and subsequent liberation of the outer ring fragments. The debris contamination more than likely came from the high-pressure compressor (HPC) stubshaft coating, which was liberated and entered the #3 bearing area causing it to fracture, and the engine to lose power. Research revealed this was one of five similar occurrences, which was traced down to a change in the manufacture process for the HPC stubshaft coating. The manufacturer has taken actions to alert operators of the existing problem.

NTSB Probable Cause Narrative

the #1 engine's fatigue failure of the #3 bearing due to the manufacturer's inadequate design of the high-pressure compressor stubshaft coating, which resulted in a loss of engine power and an emergency landing.

Event Information

Type of Event Incident
Event Date 11/2/2001
Event Day of the Week Friday
Time of Event 734
Event Time Zone Central Standard Time
Event City Midland
Event State TEXAS
Event Country --
Zipcode of the event site 60305
Event Date Year 2001
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 315633N
Event Location Longitude 1021207W
Event Location Airport Midland International
Event Location Nearest Airport ID MAF
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 2871
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 753 Central Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID MAF
Elevation of weather observation facility 2871
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 230
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.06
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 89
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 16708
NTSB Notification Source FAA
NTSB Notification Date Nov 2 2001 12:00AM
NTSB Notification Time 830
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 3 2004 9:35AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Lubbock, Texas

Aircraft Involved

Aircraft #1

Aircraft Registration Number N814AW
NTSB Number FTW02IA027
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Airbus Industrie
Aircraft Model A319-132
Aircraft Series Identifier --
Aircraft Serial Number 1281
Certified Max Gross Weight 150000
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 130
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Oct 18 2001 12:00AM
Airframe hours since last inspection --
Airframe Hours 4798
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name International Lease Finance Corporation
Aircraft Owner Street Address 1999 Avenue of the Stars 39th Floor
Aircraft Owner City Los Angeles
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 90067
Operator is an individual? No
Operator Name America West Airlines Inc.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 4000 E. Sky Harbor Blvd
Operator City Phoenix
Operator State AZ
Operator Country USA
Operator Zip code 85034
Operator Code AWXA
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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) --
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code IAH
Departure City Houston
Departure State TX
Departure Country USA
Departure Time 610
Departure Time Zone CST
Destination Same as Local Flt --
Destination Airport Code PHX
Destination City Phoenix
Destination State AZ
Destination Country USA
Specific Phase of Flight Cruise - normal
Report sent to ICAO? No
Evacuation occurred Yes
Date of most recent change to record Sep 29 2004 6:36PM
User who most recently changed record CASH
Since inspection or accident Time of Accident
Event Location Runway Number and Location 16R
Runway Length 9501
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --