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ASN Wikibase Occurrence # 248115
Last updated: 25 November 2021
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Date:21-FEB-2021
Time:20:04 utc
Type:Silhouette image of generic B789 model; specific model in this crash may look slightly different
Boeing 787-9 Dreamliner
Owner/operator:Japan Airlines
Registration: JA867J
MSN: 34843/526
Fatalities:Fatalities: 0 / Occupants:
Other fatalities:0
Aircraft damage: Minor
Location:Over Russia, Arkhangelsk region -   Russia
Phase: En route
Nature:Passenger - Scheduled
Departure airport:Helsinki-Vantaa Airport (HEL/EFHK)
Destination airport:Tokyo-Haneda Airport (HND/RJTT)
Investigating agency: SIAF
Narrative:
Japan Airlines flight JL48, a Boeing 787-9 returned to Helsinki-Vantaa Airport in Finland after the aircraft experienced engine vibration (GE Genx) while in Russian airspace.
Engine no.2 that gave the vibration indication was not turned off. In accordance with procedures, the pilots significantly reduced flight altitude and flight speed. During the approach to Helsinki, all indications of both engines were normal. The flight landed without problems at 22.02.
The plane was inspected and remained in Helsinki for maintenance. During the inspection, a piece of coating from a fan blade was found in the bypass duct and had become stuck to the stator blade of the first stage of the fan.
This caused an imbalance in the motor that was detected by the vibration sensors.

Sources:

https://www.hs.fi/kaupunki/art-2000007818404.html
https://www.turvallisuustutkinta.fi/material/collections/20210309135118/7Og65d7zt/L2021-E1_Liikennelentokoneen_paluu_Helsinki-Vantaan_lentoasemalle_teknisen_syyn_vuoksi_21.2.2021.pdf
https://www.turvallisuustutkinta.fi/fi/index/tutkintaselostukset/ilmailuonnettomuuksientutkinta/tutkintaselostuksetvuosittain/2021/l2021-e1liikennelentokoneenpaluuhelsinki-vantaanlentoasemalleteknisensyynvuoksi21.2.2021.html


Images:

Photo of JA867J courtesy AirHistory.net


London - Heathrow (EGLL / LHR)
17 April 2021; (c) John Smitherman


JAL48 Airturnback to HEL

Revision history:

Date/timeContributorUpdates
22-Feb-2021 10:13 Dolly564 Added
22-Feb-2021 10:14 harro Updated [Departure airport, Destination airport, Narrative]
22-Feb-2021 12:10 isamuel Updated [Operator]
28-Feb-2021 10:32 Dolly564 Updated [Location, Country, Damage]
28-Feb-2021 10:32 harro Updated [Country]
09-Mar-2021 13:42 Dolly564 Updated [Source, Narrative]
09-Mar-2021 14:14 harro Updated [Narrative]

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