Saturday, March 17, 2018

American Airlines, Airbus A321-231, N991AU and SkyWest Airlines on behalf of American Eagle, Canadair CL-600-2B19 Regional Jet CRJ-200ER, N862AS: Accident occurred June 30, 2017 at Chicago-O'Hare International Airport, IL (KORD), Illinois

N991AU  Aviation Accident Final Report - National Transportation Safety Board:  https://app.ntsb.gov/pdf

N991AU  Investigation Docket - National Transportation Safety Board:  https://dms.ntsb.gov/pubdms

N991AU  Aviation Accident Data Summary - National Transportation Safety Board:  https://app.ntsb.gov/pdf

http://registry.faa.gov/N991AU

Location: Chicago, IL
Accident Number: DCA17CA147A
Date & Time: 06/30/2017, 2130 CDT
Registration: N991AU
Aircraft: AIRBUS A321 231
Aircraft Damage: Minor
Defining Event: Ground collision
Injuries: N/A
Flight Conducted Under: Part 121: Air Carrier - Scheduled

Analysis 

On June 30, 2017 at 2130 central daylight time, the wingtip ("sharklet") of an Airbus A321, N991AU, operated by American Airlines flight 1162, contacted the horizontal stabilizer of a Bombardier CRJ700, N862AS, operated by SkyWest Airlines d.b.a. Eagle Flight 3407, during taxi at the Chicago O'Hare International Airport. The A321 received minor damage and the CRJ700 was substantially damaged. There were no injuries aboard either aircraft. The CRJ700 had landed and taxied to the terminal and had been instructed by air traffic control to follow another aircraft on taxiway A7. Another aircraft ahead stopped unexpectedly and the line of traffic ending with the CRJ700, had to stop. The A321 was taxiing along taxiway A, perpendicular to A7, and maneuvered to go around the protruding tail of the CRJ700. However, the left sharklet wingtip of the A321 contacted the horizontal stabilizer of the CRJ700.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
the A321 flight crew's incorrect evaluation of the clearance between the aircraft, leading to the inadvertent collision with the horizontal stabilizer of the CRJ700. Contributing to the accident was traffic congestion that resulted in the CRJ700 having to stop prior to fully clearing the perpendicular taxiway.

Findings

Personnel issues
Incorrect action performance - Flight crew (Cause)

Environmental issues
Traffic congestion - Effect on operation (Factor)

Factual Information

History of Flight

Taxi
Ground collision (Defining event) 

Pilot Information

Certificate: Airline Transport
Age: 55
Airplane Rating(s): Multi-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed:
Medical Certification: Class 1 Without Waivers/Limitations
Last FAA Medical Exam: 03/31/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 12/09/2016
Flight Time:  5000 hours (Total, all aircraft), 5000 hours (Total, this make and model) 

Co-Pilot Information

Certificate: Airline Transport
Age: 51
Airplane Rating(s): 
Seat Occupied: Right
Other Aircraft Rating(s):
Restraint Used: 3-point
Instrument Rating(s):
Second Pilot Present: Yes
Instructor Rating(s):
Toxicology Performed:
Medical Certification: Class 1 Without Waivers/Limitations
Last FAA Medical Exam: 04/14/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 04/17/2017
Flight Time:  6759 hours (Total, all aircraft), 886 hours (Total, this make and model)

Aircraft and Owner/Operator Information

Aircraft Manufacturer: AIRBUS
Registration: N991AU
Model/Series: A321 231 231
Aircraft Category: Airplane
Year of Manufacture: 2016
Amateur Built: No
Airworthiness Certificate: Transport
Serial Number: 7131
Landing Gear Type: Retractable - Tricycle
Seats:
Date/Type of Last Inspection:
Certified Max Gross Wt.: 205030 lbs
Time Since Last Inspection:
Engines: 2 Turbo Fan
Airframe Total Time:
Engine Manufacturer: IAE
ELT: Installed, not activated
Engine Model/Series: V2533-A5
Registered Owner: AMERICAN AIRLINES INC
Rated Power: 11990 hp
Operator: American Airlines 
Operating Certificate(s) Held:  Flag carrier (121)

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Night
Observation Facility, Elevation:
Observation Time:
Distance from Accident Site:
Direction from Accident Site:
Lowest Cloud Condition:  Partial Obscuration / 3000 ft agl
Temperature/Dew Point:
Lowest Ceiling:  Broken / 5000 ft agl
Visibility: 6 Miles
Wind Speed/Gusts, Direction: 5 knots, 120°
Visibility (RVR):
Altimeter Setting: 30.21 inches Hg
Visibility (RVV):
Precipitation and Obscuration:
Departure Point: Chicago O'Hare Int'l Airpot, IL (KORD)
Type of Flight Plan Filed: IFR
Destination: Los Angeles Int'l Airport, CA (KLAX)
Type of Clearance: Unknown
Departure Time: 2130 CDT
Type of Airspace: Air Traffic Control

Airport Information

Airport: Chicago O'Hare International A (KORD)
Runway Surface Type:
Airport Elevation:  0 ft
Runway Surface Condition: Unknown
Runway Used: N/A
IFR Approach: None
Runway Length/Width: 
VFR Approach/Landing: None 

Wreckage and Impact Information

Crew Injuries: N/A
Aircraft Damage: Minor
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: N/A
Latitude, Longitude:  41.977222, -87.898333 (est)

N862AS  Aviation Accident Final Report - National Transportation Safety Board:  https://app.ntsb.gov/pdf

N862AS   Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

N862AS  Aviation Accident Data Summary - National Transportation Safety Board:  https://app.ntsb.gov/pdf

http://registry.faa.gov/N862AS

Location: Chicago, IL
Accident Number: DCA17CA147B
Date & Time: 06/30/2017, 2130 CDT
Registration: N862AS
Aircraft: BOMBARDIER INC CL 600 2B19
Aircraft Damage: Substantial
Defining Event: Ground collision
Injuries: N/A
Flight Conducted Under: Part 121: Air Carrier - Scheduled

Analysis 

On June 30, 2017 at 2130 central daylight time, the wingtip ("sharklet") of an Airbus A321, N991AU, operated by American Airlines flight 1162, contacted the horizontal stabilizer of a Bombardier CRJ700, N862AS, operated by SkyWest Airlines d.b.a. Eagle Flight 3407, during taxi at the Chicago O'Hare International Airport. The A321 received minor damage and the CRJ700 was substantially damaged. There were no injuries aboard either aircraft. The CRJ700 had landed and taxied to the terminal and had been instructed by air traffic control to follow another aircraft on taxiway A7. Another aircraft ahead stopped unexpectedly and the line of traffic ending with the CRJ700, had to stop. The A321 was taxiing along taxiway A, perpendicular to A7, and maneuvered to go around the protruding tail of the CRJ700. However, the left sharklet wingtip of the A321 contacted the horizontal stabilizer of the CRJ700.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
the A321 flight crew's incorrect evaluation of the clearance between the aircraft, leading to the inadvertent collision with the horizontal stabilizer of the CRJ700. Contributing to the accident was traffic congestion that resulted in the CRJ700 having to stop prior to fully clearing the perpendicular taxiway.

Findings

Personnel issues
Incorrect action performance - Pilot of other aircraft (Cause)

Environmental issues
Traffic congestion - Effect on operation (Factor)

Factual Information

History of Flight

Taxi
Ground collision (Defining event)

Pilot Information

Certificate: Airline Transport
Age: 27
Airplane Rating(s): Multi-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 5-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed:
Medical Certification: Class 1 Unknown
Last FAA Medical Exam:
Occupational Pilot: Yes
Last Flight Review or Equivalent: 06/09/2017
Flight Time:  4147 hours (Total, all aircraft), 1883 hours (Total, this make and model), 267 hours (Pilot In Command, all aircraft), 201 hours (Last 90 days, all aircraft), 5.51 hours (Last 24 hours, all aircraft) 

Co-Pilot Information

Certificate: Airline Transport
Age: 28
Airplane Rating(s): Multi-engine Land
Seat Occupied: Right
Other Aircraft Rating(s):
Restraint Used: 5-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s):
Toxicology Performed:
Medical Certification: Unknown Unknown
Last FAA Medical Exam:
Occupational Pilot:  Yes
Last Flight Review or Equivalent: 06/21/2017
Flight Time:  1910 hours (Total, all aircraft), 389 hours (Total, this make and model), 197 hours (Last 90 days, all aircraft), 5.51 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Manufacturer: BOMBARDIER INC
Registration: N862AS
Model/Series: CL 600 2B19 100
Aircraft Category: Airplane
Year of Manufacture: 2001
Amateur Built: No
Airworthiness Certificate: Transport
Serial Number: 7476
Landing Gear Type: Retractable - Tricycle
Seats:
Date/Type of Last Inspection:
Certified Max Gross Wt.: 43100 lbs
Time Since Last Inspection:
Engines: 2 Turbo Fan
Airframe Total Time:
Engine Manufacturer: GE
ELT:
Engine Model/Series: CF34 SERIES
Registered Owner:  EXPRESSJET AIRLINES INC
Rated Power: 9140 hp
Operator: SkyWest Airlines
Operating Certificate(s) Held: Flag carrier (121) 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Night
Observation Facility, Elevation:  
Observation Time:
Distance from Accident Site:
Direction from Accident Site:
Lowest Cloud Condition:  Partial Obscuration / 3000 ft agl
Temperature/Dew Point:
Lowest Ceiling: Broken / 5000 ft agl
Visibility:  6 Miles
Wind Speed/Gusts, Direction:  5 knots, 120°
Visibility (RVR):
Altimeter Setting: 30.21 inches Hg
Visibility (RVV):
Precipitation and Obscuration:
Departure Point: ROCHESTER, NY (KROC)
Type of Flight Plan Filed: IFR
Destination: CHICAGO, IL (KORD)
Type of Clearance: IFR
Departure Time: 1918 EDT
Type of Airspace:

Airport Information

Airport: Chicago O'Hare International A (KORD)
Runway Surface Type:
Airport Elevation: 0 ft
Runway Surface Condition:
Runway Used: N/A
IFR Approach: None
Runway Length/Width:
VFR Approach/Landing:

Wreckage and Impact Information

Crew Injuries: N/A
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: N/A
Latitude, Longitude:  41.977222, -87.898333 (est)

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