MSN 55121 exists for 2 aircraft types, because each manufacturer numbers its own production. All of them are listed below.

Airbus A220-300 MSN 55121

Registration YL-ABA · Air Baltic

In service

Identity

TypeAirbus A220-300

Variant220-300

FamilyA220

Series—

Line Number—

Test Reg—

Operators

OperatorAir Baltic

Timeline

First Flight

10 Jun 2021

Delivery

26 Jun 2021

Age

5.4 yrs

Last Updated

29 Oct 2026

History

Airbus A220-300, serial number 55121. Delivered to Air Baltic on 26 Jun 2021, registered YL-ABA. Current status: in service.

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Boeing 717 · 22A MSN 55121

Registration N475HA · Hawaiian Airlines

In service

Identity

TypeBoeing 717

Variant22A

FamilyDC9

Series—

Line Number5050

Test Reg—

Operators

OperatorHawaiian Airlines

Timeline

First Flight

—

Delivery

28 Feb 2001

Age

—

Last Updated

29 Oct 2026

Remarks

s24.01.01 LB full nc, s1.02.01, FGSB 28.02.01, Haw. AL 29.06.11 ex lse

History

Boeing 717-22A, serial number 55121, line number 5050. Delivered to Hawaiian Airlines on 28 Feb 2001, registered N475HA. Seen 24 Jan 2001 LB full new colours, seen 1 Feb 2001, FGSB 28 Feb 2001, Haw. Airlines 29 Jun 2011 ex lease. Current status: in service.

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