ASN Wikibase Occurrence # 166028
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Tuesday 6 May 2014 |
| Time: | 10:52 LT |
| Type: |  Airbus A330-223 |
| Owner/operator: | Vietnam Airlines |
| Registration: | VN-A371 |
| MSN: | 275 |
| Year of manufacture: | 1999 |
| Engine model: | Pratt & Whitney PW4168A |
| Fatalities: | Fatalities: 0 / Occupants: 193 |
| Aircraft damage: | Minor |
| Category: | Incident |
| Location: | Melbourne International Airport, VIC (MEL/YMML) -
 Australia
|
| Phase: | Take off |
| Nature: | Passenger - Scheduled |
| Departure airport: | Melbourne International Airport, VIC (MEL/YMML) |
| Ho Chi Minh City-Tan Son Nhat Int'l (SGN/VVTS) | |
| Investigating agency: | ATSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
An Airbus A330 aircraft, operated by Vietnam Airlines and powered by Pratt and Whitney PW4168A engines, was conducting a regular passenger service from Melbourne, Victoria to Ho Chi Minh City, Vietnam. During the take-off roll, the crew received indications that the right engine had failed. The flight crew responded by discontinuing the take off. There were no injuries to passengers or crew.
Examination of the right engine determined that it had sustained an uncontained failure of the stage four low pressure turbine. Fragments of the turbine exited the engine via perforations in the low-pressure turbine front case but were retained within the engine cowls. Turbine debris exiting the exhaust duct damaged the right inboard and outboard flaps, flap fairings and a spoiler.
The ATSB found that the engine failed due to high-cycle fatigue cracking and the fracture of a single stage four low-pressure turbine blade. Release of the fractured blade resulted in the subsequent failure of the turbine. The fatigue crack initiation point on the remaining blade stub of the fractured blade was obscured by damage from rotational contact that occurred during the engine failure sequence. This prevented the ATSB from determining whether any pre-existing material anomaly or damage contributed to the crack initiation.
No similar failures in Pratt and Whitney PW4168A engines were identified.
Accident investigation:
 |
|
Sources:
http://www.atsb.gov.au/publications/investigation_reports/2014/aair/ao-2014-081/
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-May-2014 07:25 | gerard57 | Added |
| 06-May-2014 17:22 | gerard57 | Updated [Registration, Operator, Source] |
| 21-May-2014 03:31 | Geno | Updated [Time, Aircraft type, Cn, Total occupants, Location, Departure airport, Destination airport, Source, Narrative] |
| 01-Jun-2017 11:26 | harro | Updated [Location, Destination airport, Source, Narrative] |
| 01-Jun-2017 12:50 | harro | Updated [Operator, Damage] |
| 10-Jun-2022 03:15 | Ron Averes | Updated [Location] |
| 10-Jun-2022 08:54 | Ron Averes | Updated [Location] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation