CHI00IA125

NTSB incident investigation · Boeing 777-223ER · Chicago, IL · April 25, 2000

Incident · No injuriesIncident investigationFinal report
Date
April 25, 2000, 09:28 local (14:28 UTC)
Place
Chicago, IL
Injuries
167 uninjured
Damage
No damage
Phase of flight
Takeoff
Aircraft
N779ANBoeing 777-223ER
Weather
Visual (VMC) · Day
Status
Completed · report September 6, 2001
Report
Approved by Office Director
Case key
49133

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.

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Probable cause

the flightcrew not detecting the runway closure NOTAM and the Air Traffic Control personnel on the metering, ground, and local positions giving an improper clearance to taxi to a closed runway. Factors were the closed runway, ATIS information not issued by Air Traffic Control personnel, and insufficiently defined procedures of disseminating pertinent safety of flight information.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Miscellaneous/otherTakeoff
Airport/facilities - closedFactor
Notams - not detectedFlightcrewCause
Condition(s)/step(s) insufficiently definedAtc personnel(lcl/gnd/clnc)Factor
Atc clearance - improperAtc personnel(lcl/gnd/clnc)Cause
Information - not issuedAtc personnel(lcl/gnd/clnc)Factor

Analysis

The airplane departed from a closed runway. No injuries were reported. The first officer's stated, "After normal preflight and gate departure. We advised metering that we were ready for taxi and would prefer 32R if available. Ground gave us clearance to taxi to 32R. Tower first had us hold short and then position and hold awaiting the departure of two aircraft from intersecting runways. We were then cleared for takeoff." The airport had issued a runway closure NOTAM. The flight's dispatch contained the NOTAM. The dispatch listed the runway status as open. ATIS did not list the runway closure. A FAA recommendation stated, "Add the suggestion to our list of good operating procedures that closure strips should not be used as departure strip runway separators. Closure strips should be placed and left in a prominent position on the podiums. ... In addition to Locals and Grounds receiving runway closure strips, both Flight Data and Ground Metering should have closure strips as well. ... Revise Flight Data, Clearance Delivery, and Ground Metering positions relief checklists to include runway closure information. Brief operational personnel that runway closures must be broadcast on the ATIS. Brief operational personnel that pilots must be informed that a runway is closed when it is requested for takeoff/landing. Brief operational supervisors of the requirement to ensure ATIS broadcasts are correct and contain pertinent information."

Factual narrative

On April 25, 2000, at 0928 central daylight time, a Boeing 777-223ER, N779AN, operated as American Airlines flight #90 to London, England, piloted by an airline transport rated captain and copilot, sustained no damage on departure from runway 32R, a closed runway, at O'Hare International Airport (ORD), Chicago, Illinois. The scheduled international 14 CFR Part 121 passenger flight was operating on an IFR flight plan. Visual meteorological conditions prevailed at the time of the incident. The 3 flight crewmembers, 12 cabin crewmembers, and 152 passengers were uninjured. The flight was originating at the time of the incident and landed at Heathrow Airport, near London, England, without further incident.

O'Hare airport operations issued a Notice to Airmen (NOTAM) listed as number 0004206. The NOTAM stated "RWY [runway] 14L/32R CLSD [closed]" from 0830 to 1030 on April 25, 2000. The purpose of the runway closure was for "electrical maintenance." (See appended O'Hare airport NOTAM.)

The flight's dispatch was reviewed. The dispatch's NOTAM section listed NOTAM "04/156 ORD 14L/32R CLSD WEF (ICAO contraction meaning with effect from, or effective from) 0004251330-0004251530" in it. The dispatch's ORD Field Report section indicated "14L/32R OPEN [status,] DRY [conditions, and] NORMAL [braking action]." (See appended flight dispatch.)

The runway closure, advised in NOTAM 04/156, was not broadcast on ORD Automated Terminal Information Service (ATIS) Whiskey. Information Whiskey was current at the time of departure.

The first officer's stated, "After normal preflight and gate departure. We advised metering that we were ready for taxi and would prefer 32R if available. Ground gave us clearance to taxi to 32R. Tower first had us hold short and then position and hold awaiting the departure of two aircraft from intersecting runways. We were then cleared for takeoff." Federal Aviation Administration (FAA) air traffic control personnel, as required by FAA Order 7110.65, did not inform the pilot that the runway was closed. The first officer stated, "Three days later we were advised that we may have taken off on a closed runway."

The FAA convened an investigative team to explore the circumstances surrounding the operational error. The team developed recommendations. Excerpts of the recommendations stated, "Add the suggestion to our list of good operating procedures that closure strips should not be used as departure strip runway separators. Closure strips should be placed and left in a prominent position on the podiums. ... In addition to Locals and Grounds receiving runway closure strips, both Flight Data and Ground Metering should have closure strips as well. ... Revise Flight Data, Clearance Delivery, and Ground Metering positions relief checklists to include runway closure information. Brief operational personnel that runway closures must be broadcast on the ATIS. Brief operational personnel that pilots must be informed that a runway is closed when it is requested for takeoff/landing. Brief operational supervisors of the requirement to ensure ATIS broadcasts are correct and contain pertinent information." (See appended FAA reports.)

Aircraft

Registration
N779AN
Reported as
Boeing 777-223ER
Category
Airplane
Serial number
225
Airframe hours
4,087
Engine
Rolls-Royce TRENT/892-17, 93,400 lbs thrust, turbo fan
Damage
No damage
Flight
Part 121
Registered owner
American Airlines Inc.
Airworthiness certificate
Standard, Transport
Departed
ORD
Destination
LHR · London, OF
Flight plan
IFR
Airport
ORD · O'Hare International, runway 32R, 10,003 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
59
Certificate
Airline transport
Airplane ratings
Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 10 knots, gusting 16
Visibility
10 statute miles
Lowest ceiling
None
Temperature
126 °F, dew point 82 °F
Altimeter
30.00 inHg
Observed at
ORD

Other investigations on N779AN · 1

Matched to the same aircraft by N-number and date.