N441MD - 1979 Cessna 441 Aircraft Registration

C441

1979 CESSNA 441

Aircraft Description

N441MD is a 1979 Cessna 441, a twin-engine turbo-prop aircraft registered to Keystone Aerial Surveys INC in Philadelphia, PA. This aircraft holds a restricted airworthiness certificate issued by the Federal Aviation Administration on December 15, 1992. The registration certificate was issued on September 14, 2019. The registration is set to expire on September 30, 2029. Powered by a Ama/expr UNKNOWN ENG engine, N441MD is. The aircraft's Mode S transponder code is A54F6B (hex), used for ADS-B identification and flight tracking. N441MD was last tracked by AviatorDB at coordinates 40.0824, -75.0106 on April 24, 2025. The FAA registry record for N441MD was last updated on September 2, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Cessna 441 Conquest II was Cessna's first turboprop aircraft, marking the company's entry into the high-performance business aviation market. First flown in August 1975, it was a pressurized twin-turboprop monoplane that could seat up to 10 passengers and featured twin Garrett TPE331 engines producing 636 shaft horsepower each. With a service ceiling of 35,000 feet and maximum gross weight of 9,850 pounds, the aircraft was manufactured by Cessna Aircraft Company in Wichita, Kansas. AviatorDB tracks 80,556 Cessna aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is C441.

AviatorDB has found no NTSB accident or incident reports involving N441MD. AviatorDB cross-references all FAA registration data with NTSB accident and incident reports, providing a comprehensive safety overview for every registered aircraft in the United States.

Model Year
1979
Manufacturer
CESSNA
Model
441
Type Aircraft
Fixed Wing Multi Engine
ICAO Type Code
C441441 Conquest 2
Cruise Speed
131 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
December 15, 1992
Classification
Restricted 2 Category
Type Registration
Corporation
Status
Valid Registration
Cert Issue Date
September 14, 2019

Registered Owner

Name
KEYSTONE AERIAL SURVEYS INC
Address
PO BOX 21059
City
PHILADELPHIA
State / Zip Code
Pennsylvania19114-0559
Country
United States

Operator / Airline

Operator
Keystone Aerial Surveys
ICAO Code
FTP

Powerplant & Avionics

Engine Type
Turbo-prop
Number of Engines
2
Engine Manufacturer
AMA/EXPR
Engine Model
UNKNOWN ENG
Mode S Code (Oct)
51247553
Mode S Code (Hex)
A54F6B

Additional Details

Registration
N441MD
Serial Number
441-0103
Number of Engines
2
Number of Seats
10
Expiration Date
September 30, 2029
Last Action Date
September 2, 2023
Last Update Date
January 19, 2026
Unique ID
00632384

Last Known Position

Date
April 24, 2025 (UTC 21:34:18)
Airport
Latitude
40.082406
Longitude
-75.010614

Data Source

Data provided by the US Federal Aviation Administration. View on FAA.gov

Last updated: 2026-05-15 01:32:20 UTC