ASN Wikibase Occurrence # 167871
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| Date: | Thursday 26 May 2011 |
| Time: | 14:23 |
| Type: |  Airbus A330-323 |
| Owner/operator: | Korean Air |
| Registration: | HL7553 |
| MSN: | 267 |
| Year of manufacture: | 1999 |
| Engine model: | Pratt & Whitney PW4168A |
| Fatalities: | Fatalities: 0 / Occupants: 295 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | 20 km S of Seoul-Incheon International Airport (ICN/RKSI) -
 South Korea
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Seoul-Incheon International Airport (ICN/RKSI) |
| Praha-Ruzyne International Airport (PRG/LKPR) | |
| Investigating agency: | ARAIB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Korean Air flight KE935, which took off from Incheon International Airport, Republic of Korea, bound for Prague's Ruzyne International Airport, Czech Republic, experienced an uncommanded right roll with a sudden bang while passing through 11,900 ft during its climb out. The crew observed a No. 2 engine fire warning message displayed, followed by a continuous repetitive chime sound and a fire warning light. The flight crew shut down the No. 2 engine through related emergency procedures, declared an emergency, and returned to Incheon International Airport.
The Aviation and Railway Accident Investigation Board (ARAIB) determined the probable cause of this serious incident to be one liberated 4th-stage low pressure turbine (LPT) vane cluster of the No. 2 engine, which successively damaged later stages of blades and vanes, thereby resulting in an engine failure.
Contributing to the serious incident was excessive wear to the 4th-stage LPT vane cluster's C-channel caused by abnormal 2E excitation, which had resulted from the aerodynamic pattern of the 2nd-stage high pressure turbine (HPT) rotor.
Accident investigation:
 |
|
Sources:
http://araib.mltm.go.kr/USR/BORD0201/m_34591/DTL.jsp?id=eaib0501&idx=219573&mode=view
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Jul-2014 19:43 | harro | Added |
Corrections or additions? ... Edit this accident description
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