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N633AT1985 CESSNA S550

N633AT is a 1985 Cessna S550, serial S550-0066, registered to NRX PHARMACEUTICALS INC, a corporation in Wilmington, DE, US. The FAA issued the current certificate on 9 Sep 2026, and its status is Valid registration, expiring 30 Sep 2033. The record shows 1 registry change, no NTSB case on this mark and 4 service difficulty reports.

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$898,711

Valued 29 Aug 2026

Registration: N633AT
Aircraft: S550; CESSNA
Serial Number: S550-0066

Locked

Total Hours

Locked

Total Cycles

1985

Year

Public record

The public record
for N633AT.

This section is public record, drawn from the FAA registry and the Virtual Hangar valuation sheet. Nothing here comes from the aircraft's own logbooks. Verification is what connects this record to the logbooks, the maintenance plan and the value factors only an owner holds, and anything an owner chooses to publish appears separately below.

Registration record

N633AT as the FAA holds it

FAA registry, effective 5 Oct 2026

Airframe

Manufacturer: CESSNA
Model: S550
Serial number: S550-0066
Year manufactured: 1985
Airframe type: Fixed wing multi engine
Category: Land
Certification basis: Type certificated
Seats: 8
Weight class: Up to 12,499 lb

Powerplant

Engines: 2
Manufacturer: AMA/EXPR
Model: UNKNOWN ENG

Airworthiness

Certificate issued: 19 Sep 1985
Classification: Standard
Approved operations: Transport

Registration

Status: Valid registration
Record type: Currently registered
Certificate issued: 9 Sep 2026
Last FAA action: 9 Sep 2026
Expires: 30 Sep 2033
FAA region: Eastern
Fractional ownership: No
FAA unique id: 00460336

Registered owner

Name: NRX PHARMACEUTICALS INC
Registrant type: Corporation
Based: WILMINGTON, DE, US

Transponder address

Mode S (hex): A848F3
ICAO 24-bit: a848f3
Octal: 52044363
Decimal: 11028723

Estimated value

$898,711

As of 29 Aug 2026. Virtual Hangar Jetstimate. Market value and charter on virtualhangar.com

Market presence

Not currently listed

N633AT has never appeared on the marketplaces we collect.

Live tracking

Where N633AT is,
right now.

Flight tracking read live from a public feed. In the air, the map shows the aircraft's position, heading and path flown. On the ground, it shows where the feed last reported it, rounded to about a kilometre.

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Straight answers

Questions about
N633AT.

Each answer is drawn from public record and the Virtual Hangar valuation sheet: the FAA registry, the NTSB database, service difficulty reports, Part 135 certificates and public sale listings. Nothing here comes from the owner's own published details above. Where the record is silent the question is not asked, so an absence here never stands in for a clean history.

What kind of aircraft is N633AT?

N633AT is a 1985 Cessna S550, serial S550-0066. The FAA classes it as fixed wing multi engine, it seats 8, it is powered by 2 AMA/EXPR UNKNOWN ENG engines.

Who is N633AT registered to?

The FAA registry lists NRX PHARMACEUTICALS INC, a corporation in Wilmington, DE, US, as the registrant of N633AT.

Is N633AT still registered?

The FAA lists the registration as Valid registration. The current certificate was issued on 9 Sep 2026 and expires on 30 Sep 2033.

Has N633AT been in an NTSB-reported accident?

The NTSB database holds no accident or incident record naming N633AT. Marks are reused, so this covers the mark, not every airframe that ever wore it.

Does N633AT have service difficulty reports?

4 service difficulty reports have been filed against N633AT with the FAA.

Who operates N633AT for charter?

No Part 135 certificate lists N633AT, so it is not on file as a charter aircraft.

Is N633AT for sale?

N633AT is not currently listed for sale on the marketplaces we collect.

What is N633AT worth?

The Virtual Hangar Jetstimate puts N633AT at $898,711 as of 29 Aug 2026. A listing asking price, where one exists, is the seller's number and not this valuation.

Has N633AT changed hands?

The FAA record shows 1 registry change for N633AT. The mark was previously carried by: Cessna 500.

What verification adds

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