Registry / N503U

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N503U V

Fixed Wing Single Engine · 2019 · Scottsdale, AZ

This aircraft — FAA registration facts

N503U is a 2019 Fixed Wing Single Engine (serial 103/US), registered to Alba Leasing Services LLC (LLC) in Scottsdale, AZ. Its FAA registration is recorded as v and expires August 2032; the airworthiness certificate dates from February 2020 (6 years ago). It carries a Lycoming IO-360-M1A engine rated at 180 hp, the engine on 53% of registered Fixed Wing Single Engines. Its Mode-S transponder broadcasts the ICAO 24-bit address A646D7. It is one of 80 Fixed Wing Single Engine aircraft on the FAA registry. Alba Leasing Services LLC holds 29 aircraft on the registry.

Registered owner
Alba Leasing Services LLC
Owner type
LLC
Based in
Scottsdale, AZ
Serial number
103/US
Year built
2019 · 7 yrs old
Airworthiness class
Standard – Normal
FAA status
V
Mode-S / ICAO24
A646D7 · 51443327 octal
Certificate issued
Aug 14, 2025
Airworthiness date
Feb 10, 2020
Last FAA activity
Aug 14, 2025
Registration expires
Aug 31, 2032
FAA region
4

Source: FAA aircraft registry (public record). Community reviews and photos below.

Engine on this aircraft

Engine
Lycoming IO-360-M1A
Engine type
4-Cycle Piston
Rated power
180 hp
FAA engine code
40891

39 of the 74 registered Fixed Wing Single Engine carry this engine (53%), across 5 engine variants on the type.

Source: FAA engine reference (ENGINE.txt), matched on this registration's engine code.

Community facts about N503U

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Flight history & live tracking recent positions on file

ICAO24: a646d7
Last known — 2 weeks ago N503U
Observed 2026-10-05 13:20:51 MST
Auto-refresh • Updated 0s ago
Ground speed
95 kt
Altitude (baro)
2,125 ft
Track
275.0°
Squawk
—
Wind / OAT
—
Autopilot target
—
Lat 31.65552, Lng -97.25087
Map loads when scrolled into view …
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Engine — CODE 40891

Manufacturer: Lycoming
Model: IO-360-M1A
Type: 4-Cycle Piston
Horsepower: 180 HP

FAA Registration Record

N-Number: N503U
Serial Number: 103/US
Year Manufactured: 2019
ACFTREF Code: 0330402
Engine Code: 40891
Status: V (V)
Certification: Standard – Normal
Type Aircraft: Fixed Wing Single Engine (4)
Type Engine: 4-Cycle Piston (8)
Source: master

Transponder / ADS-B

Mode S (octal): 51443327
ICAO 24-bit (hex): A646D7

Registrant

Alba Leasing Services LLC
LLC
View all 29 aircraft registered to this owner →
14605 N Airport Dr Ste 350
Scottsdale, AZ, 852602491
FAA Region: 4

Key Dates

Certificate Issued Aug 14, 2025
Airworthiness Feb 10, 2020
Expiration Aug 31, 2032
Last Activity Aug 14, 2025
Data as of Oct 5, 2026

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