B-1521
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This aircraft
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Performance specs
- Range
- 2,700 nm
- Cruise speed
- 460 kt
- Max speed
- 525 kt
- Service ceiling
- 41,000 ft
- Takeoff distance
- 2900 m
- Landing distance
- 2400 m
- MTOW
- 78,200 kg
- Empty weight
- —
- Fuel capacity
- 26,000 L
- Length
- 42.1 m
- Wingspan
- 35.8 m
- Height
- 12.6 m
- Seats
- 177
- Max passengers
- 189
Flight activity
(60 tracking legs recorded)- Last 30 days
- 24
- Last 90 days
- 60
- Last seen
- 8 Nov 2026
- Tracked since
- 11 Aug 2026
- Tracked flight8 Nov 2026 · 11h 37m
- Tracked flight7 Nov 2026 · 12h 43m
- Tracked flight6 Nov 2026 · 12h 01m
- Tracked flight6 Nov 2026 · 12h 00m
- Tracked flight5 Nov 2026 · 12h 33m
- Tracked flight4 Nov 2026 · 12h 25m
- Tracked flight4 Nov 2026 · 11h 59m
- Tracked flight3 Nov 2026 · 12h 39m
- Tracked flight2 Nov 2026 · 12h 13m
- Tracked flight2 Nov 2026 · 11h 58m
Showing the 10 most recent distinct flights. The total counts every raw ADS-B tracking leg, including repeat observations and sub-5-minute artifacts.
From ADS-B observations collected since May 2026. Coverage depends on ground-receiver density; gaps do not mean the aircraft did not fly.
Common. One of the most common aircraft types we track.
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Registration history
(1)- B-1521CNACTIVEOkay Air—
Owner names are published by the issuing civil registry (FAA / CCARCS / CASA / ANAC / NZ CAA). Owner addresses present in the source are not republished here. Registered owner? Request removal
Operator history
(1)- Okay AirwaysOperator2026 – present
What aircraft model is B-1521?
B-1521 is a Boeing 737. Sprinkle's record for B-1521 covers its lineage, ownership history and specifications.
Is B-1521 currently active?
Registry records list B-1521's status as Active, registered in China — a Boeing 737.
What is the manufacturer serial number (MSN) of B-1521?
B-1521 carries manufacturer serial number (MSN) 41118, the serial assigned to this Boeing 737 airframe when it was built.
What is the ICAO24 / Mode S code for B-1521?
B-1521's ICAO24 (Mode S) transponder code is 780E01 — the hex address the Mode S transponder on this Boeing 737 broadcasts.