ASN Aircraft accident Boeing 737-201 N242US Chicago-O'Hare International Airport, IL (ORD)
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Status:Accident investigation report completed and information captured
Date:Friday 20 January 1989
Time:07:45
Type:Silhouette image of generic B732 model; specific model in this crash may look slightly different
Boeing 737-201
Operator:Piedmont Airlines
Registration: N242US
MSN: 22444/888
First flight: 1981
Total airframe hrs:19420
Engines: 2 Pratt & Whitney JT8D-15
Crew:Fatalities: 0 / Occupants: 6
Passengers:Fatalities: 0 / Occupants: 27
Total:Fatalities: 0 / Occupants: 33
Aircraft damage: Substantial
Aircraft fate: Repaired
Location:Chicago-O'Hare International Airport, IL (ORD) (   United States of America)
Phase: Takeoff (TOF)
Nature:Domestic Scheduled Passenger
Departure airport:Chicago-O'Hare International Airport, IL (ORD/KORD), United States of America
Destination airport:Charlotte-Douglas Airport, NC (CLT/KCLT), United States of America
Flightnumber:1480
Narrative:
The aircraft was taking off from runway 27L when the no. 2 engine separated. It fell to the ground 800 feet past the end of the runway. The crew managed to climb to 1000 feet before they initiated a return to the airport for a safe emergency landing on runway 04R.

Probable Cause:

PROBABLE CAUSE: "Previous damage to the aft cone (engine mounting) bolt, which resulted in mismatched surfaces between the bolt and isolation mount, loss of torque during cyclic loading of the mounting bolt, and subsequent fatigue failure of the bolt."

Accident investigation:

cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 3 years and 5 months
Accident number: CHI89MA046
Download report: Summary report

Classification:
Engine separation
Forced landing on runway

Sources:
» Aviation Week & Space Technology 30 Jan. 1989 (p.71)
» NTSB


Follow-up / safety actions

FAA issued 1 Airworthiness Directive
NTSB issued 2 Safety Recommendations

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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Chicago-O'Hare International Airport, IL to Charlotte-Douglas Airport, NC as the crow flies is 958 km (599 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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