N725MK - 1968 Lockheed 1329-23E Aircraft Registration

1968 LOCKHEED 1329-23E

Aircraft Description

N725MK is a 1968 Lockheed 1329-23E, a four-engine turbo-jet aircraft registered to Ken Sale Resources INC in Southlake, TX. This aircraft holds a standard airworthiness certificate issued by the Federal Aviation Administration on September 30, 1968. The registration certificate was issued on February 20, 2007. The registration is set to expire on August 31, 2029. Powered by a P & W JT12A-6 6A engine producing 3000 pounds of thrust, N725MK is. The aircraft's Mode S transponder code is A9B73C (hex), used for ADS-B identification and flight tracking. The FAA registry record for N725MK was last updated on July 25, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The Lockheed L-1329 JetStar was the world's first mass-produced business jet, establishing the foundation of today's corporate aviation industry. First flown on September 4, 1957, it was a low-wing four-engine aircraft that could accommodate 8-10 passengers in standard configuration or up to 17 in high-density layouts. Measuring 60 feet 5 inches in length with a 54-foot 5-inch wingspan, the JetStar was manufactured by Lockheed Aircraft Corporation at their Marietta, Georgia facility. AviatorDB tracks 222 Lockheed aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is L29A.

AviatorDB has found no NTSB accident or incident reports involving N725MK. 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
1968
Manufacturer
LOCKHEED
Model
1329-23E
Type Aircraft
Fixed Wing Multi Engine
Weight Class
20,000+ lbs
Airworthiness Date
September 30, 1968
Classification
Standard Transport Category
Type Registration
Corporation
Status
Valid Registration
Cert Issue Date
February 20, 2007

Registered Owner

Name
KEN SALE RESOURCES INC
Address
865 W DOVE RD
City
SOUTHLAKE
State / Zip Code
Texas76092-3562
Country
United States

Powerplant & Avionics

Engine Type
Turbo-jet
Number of Engines
4
Engine Manufacturer
P & W
Engine Model
JT12A-6 6A
Thrust
3000 lbs
Mode S Code (Oct)
52333474
Mode S Code (Hex)
A9B73C

Additional Details

Registration
N725MK
Serial Number
5123
Number of Engines
4
Number of Seats
12
Expiration Date
August 31, 2029
Last Action Date
July 25, 2023
Last Update Date
July 25, 2023
Unique ID
00473394

Data Source

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

Last updated: 2026-06-15 01:32:20 UTC