Boeing 747 HL7489

Summary

On 10 October 2010, a Boeing 747 registered HL7489, operated by Korean Air, was involved in an incident near Seoul, Republic Of Korea. The number of people on board was not recorded. The aircraft was slightly damaged. No probable cause statement is available for this record.

Date

10 October 2010

Classification

Incident

Location

Seoul, Republic Of Korea

Nearest airport

Seoul International (ICN)

Coordinates

Not recorded

Aircraft

Boeing 747

Registration

HL7489

Operator

Korean Air

Operating rule

Part 129: Foreign

Phase of flight

Not recorded

Route

Seoul → San Francisco

Aircraft damage

Minor

NTSB number

ENG11RA001

Injuries not recorded.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

On October 10, 2010, Korean Air Boeing 747-400 registered in Korea as HL7489, experienced an uncontained release of turbine material from the No. 3 engine, a Pratt & Whitney PW4056 engine. About 40 minutes after takeoff, the crew observed engine vibrations and oi pressure indications followed by high exhaust gas temperature. The crew shut down the No. 3 engine and returned to Seoul without further incident. The examination of the engine after landing showed the exhaust sleeve was missing and there was a large hole in the low pressure turbine case that revealed extensive internal damage to the engine. The airplane was operating as Korean Air flight KE023 from Seoul to San Francisco, California. There were no reported injuries to the passengers or crew. The incident is being investigated by the Korean Aviation & Railway Accident Investigation Board (ARAIB). The NTSB has designated a U.S. Accredited Representative to the ARAIB's investigation in accordance with the provisions of the International Civil Aviation Organization (ICAO) Annex 13 as the state of manufacture of the airplane and engine. All inquiries should be directed to: Aviation and Railway Accident Investigation Board Ministry of Land, Transport and Maritime Affairs 281, Gonghang-Dong Gangseo-gu, Seoul, 157-815 Republic of Korea Website: http://www.araib.go.kr

Quoted verbatim from the NTSB record.