Airship

N577MB

1988 Homebuilt Osprey II

Registered No accidents on file

Built

1988

Serial

MB-1

Class

Airship

Engines

Lycoming O-290 series

Status

Current as of October 2026

Registered owner

Individual · sign in to see

Based

Sheridan, AR

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Registration record

N577MB on the FAA register

Type

1988 Homebuilt Osprey II

Serial

MB-1

Engines

Lycoming O-290 series

Registered owner

Individual — the name of an individual registrant is shown to signed-in users. Sign in

Sheridan, AR

Certificate issued

2011-08-05

Airworthiness date

2011-08-19

Registration expires

2027-08-31

Airworthiness class

Experimental · amateur-built

Mode S (hex)

A7697F

Mode S (octal)

51664577

Seats (type)

Weight class

up to 12,499 lb

Status

Current as of October 2026

Registry history

Timeline

2027-08-31
Registration expires (renewal due).
2011-08-19
Airworthiness date on the current FAA record (experimental category (amateur-built)).
2011-08-05
Certificate of registration issued as N577MB.
1988
Manufactured (1988).

Overview

About N577MB

N577MB is a 1988 Homebuilt Osprey II, serial number MB-1. It is registered to an individual in Sheridan, Arkansas. The current certificate of registration was issued on August 5, 2011 and expires on August 31, 2027.

The FAA aircraft reference file describes the type as an airship, one Lycoming O-290 series engine and 1 seats. Its airworthiness certificate is experimental category (amateur-built), dated August 19, 2011.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N577MB.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N577MB.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

Same state

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All 3,495 aircraft registered in Arkansas →

Browse: Aircraft registered in Arkansas· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.