Registry / Textron Aviation Inc / 208B / N405B

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N405B V

Textron Aviation Inc 208B · 2024 · Port Alsworth, AK

This aircraft — FAA registration facts

N405B is a 2024 Textron Aviation Inc 208B (serial 208B5837), registered to Silver Mountain LLC (LLC) in Port Alsworth, AK. Its FAA registration is recorded as v and expires November 2031; the airworthiness certificate dates from November 2024 (1 year ago). It carries a P&W Canada PT6A-140 engine rated at 867 hp, the engine on 98% of registered Textron Aviation Inc 208Bs. Its Mode-S transponder broadcasts the ICAO 24-bit address A4BF4D. It is one of 220 Textron Aviation Inc 208B aircraft on the FAA registry. Silver Mountain LLC holds 3 aircraft on the registry.

Registered owner
Silver Mountain LLC
Owner type
LLC
Based in
Port Alsworth, AK
Serial number
208B5837
Year built
2024 · 2 yrs old
Airworthiness class
Standard – Normal
FAA status
V
Mode-S / ICAO24
A4BF4D · 51137515 octal
Certificate issued
Nov 29, 2024
Airworthiness date
Nov 7, 2024
Last FAA activity
Nov 29, 2024
Registration expires
Nov 30, 2031
FAA region
5

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

Engine on this aircraft

Engine
P&W Canada PT6A-140
Engine type
Turbo-prop
Rated power
867 hp
Power per seat
72 hp
FAA engine code
51499

185 of the 189 registered Textron Aviation Inc 208B carry this engine (98%), across 4 engine variants on the type.

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

Community facts about N405B

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Flight history & live tracking recent positions on file

ICAO24: a4bf4d
Last known — 1 day ago N405B
Observed 2026-09-24 10:22:09 MST
Auto-refresh • Updated 0s ago
Ground speed
158 kt
Altitude (baro)
12,525 ft
Track
273.0°
Squawk
—
Wind / OAT
—
Autopilot target
—
Lat 61.49411, Lng -153.15399
Map loads when scrolled into view …
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Aircraft Type — ACFTREF 2073712

Textron Aviation Inc 208B
Engines: 1
Type: turboprop
Seats: 12
Category: Standard

Engine — CODE 51499

Manufacturer: P&W Canada
Model: PT6A-140
Type: Turbo-prop
Horsepower: 867 HP

FAA Registration Record

N-Number: N405B
Serial Number: 208B5837
Year Manufactured: 2024
ACFTREF Code: 2073712
Engine Code: 51499
Status: V (V)
Certification: Standard – Normal
Type Aircraft: Fixed Wing Single Engine (4)
Type Engine: Turbo-prop (2)
Source: master

Documents & resources

Commonly available reference sources for the Textron Aviation Inc 208B. Always confirm against the manufacturer's current, authoritative publication for your specific aircraft.

View the Textron Aviation Inc 208B model overview, reviews & photos →

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Transponder / ADS-B

Mode S (octal): 51137515
ICAO 24-bit (hex): A4BF4D

Registrant

Silver Mountain LLC
LLC
View all 3 aircraft registered to this owner →
110 North Easy St
Port Alsworth, AK, 99563
FAA Region: 5

Key Dates

Certificate Issued Nov 29, 2024
Airworthiness Nov 7, 2024
Expiration Nov 30, 2031
Last Activity Nov 29, 2024
Data as of Sep 7, 2026

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