FAA Aircraft Registry · Live Lookup · As of Apr 28, 2026

N638HP — Learjet 31A

Rendered live from the FAA Aircraft Registry (refreshed weekly). This tail has no NTSB events or airworthiness directives indexed against it — type-level history is on the type page below.

Registration

Registrant

BOULDER FALCON LLC

Registrant Type

LLC

Location

SALT LAKE CITY, UT

Status

Registration Valid

Certificate Issued

Mar 15, 2025

Airworthiness Date

Jan 11, 2001

Registration Expires

Mar 31, 2032

Last Action

Mar 15, 2025

Aircraft

Serial Number

219

Year Manufactured

—

Aircraft Type

Fixed Wing Multi Engine

Certification

Standard (+1 flag)

Engine

HONEYWELL TFE-731-SER

Engines / Seats

2 / 10

Weight Class

CLASS 2

Mode S (Hex)

A85C31

Type History

Learjet 31A type page → — 104 registered · 8 NTSB records · 36 airworthiness directives

Live position via ICAO24 A85C31

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