Narrative:A Boeing 737-230, operating as Nationwide flight 723, departed from Cape Town International Airport (CPT) on schedule at 15:50. During a takeoff from runway 01, the right-hand engine separated from the wing. During rotation the crew noticed a sudden spool down indication on all right-hand engine gauges, followed by drastic attitude changes. The aircraft was banking towards the left and right side, then started to sink and thereafter yawed to the right. The right-hand engine thrust lever retarded uncommanded and the reverse thrust warning light also illuminated and remained on. The crew managed to recover the aircraft from the uncommanded roll to both left and right and was able to establish a normal flight attitude. An emergency was then declared and the aircraft continued to climb and remained at an altitude of 3000 feet above mean sea level (AMSL), as it was vectored along the circuit by the ATC. The flight deck crew carried out one orbit with the aircraft prior to them receiving clearance to land on runway 01. A safe landing on runway 01 followed.
Probable Cause:
PROBABLE CAUSE:
"The right-hand engine separated from the aircraft due to the failure of the aft cone bolt as a result of a pre-existing fatigue crack which was most likely caused by incorrect installation of the cone bolt."
Accident investigation:
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Investigating agency: | CAA SouthAfrica |
Status: | Investigation completed |
Duration: | 2 years | Accident number: | CA18/2/3/8383 | Download report: | Final report
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Classification:
Engine separation
Forced landing on runway
Sources:
» Nationwide press release
Follow-up / safety actions
CAA S.A. issued 3 Safety Recommendations
Issued: 30-OCT-2009 | To: SACAA | ZS-OEZ (1) |
The Commissioner for Civil Aviation strengthens the capability of the SACAA to ensure adequate safety oversight and compliance by operators with regard to safety requirements and directives. |
Issued: 30-OCT-2009 | To: SACAA | ZS-OEZ (2) |
The Airworthiness Department of the SACAA introduces a procedure which will address the issuance of approvals via e-mail. |
Issued: 30-OCT-2009 | To: SACAA | ZS-OEZ (3) |
The Commissioner for Civil Aviation should initiate a minimum standard (Safety Management System) procedure that could assist and educate the operators to manage risk within their operations. |
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Photos
accident date:
07-11-2007type: Boeing 737-230
registration: ZS-OEZ
Aircraft history
09 JAN 1981 |
D-ABFH |
Lufthansa |
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02 JUN 1992 |
RC-CTC |
Croatia Airlines |
leased
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09 JUL 1992 |
9A-CTC |
Croatia Airlines |
new registration
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01 AUG 1999 |
ZS-OEZ |
Nationwide Air |
leased
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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 Cape Town International Airport to Johannesburg-O.R. Tambo International Airport as the crow flies is 1267 km (792 miles).
Accident location: Approximate; accuracy within a few kilometers.
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.