N704K - Waco Bso Aircraft Registration

WACO

WACO BSO

Aircraft Description

N704K is a Waco BSO, a single-engine reciprocating (piston) aircraft registered to Hirtle Alan L in Oro Valley, AZ. The registration certificate was issued on March 25, 2009. The registration is set to expire on February 28, 2030. The aircraft is configured with 3 seats. The aircraft's Mode S transponder code is A9644B (hex), used for ADS-B identification and flight tracking. The FAA registry record for N704K was last updated on October 7, 2023. AviatorDB monitors aircraft positions through ADS-B surveillance data and updates records as new position data is received.

The WACO Model O represents part of the extensive civilian biplane family that helped establish WACO Aircraft Company as America's leading small aircraft manufacturer during the interwar period. First flown in the late 1920s, it was a conventional open-cockpit biplane designed for sport flying, training, and touring applications. With seating for one to two occupants and powered by various radial or inline engines, the Model O featured the reliable construction and performance characteristics that made WACO aircraft dominate civilian aviation markets. The aircraft was manufactured by the original WACO Aircraft Company of Troy, Ohio. AviatorDB tracks 678 Waco aircraft currently registered in the FAA database. The ICAO type designator for this aircraft model is WACO.

AviatorDB has found no NTSB accident or incident reports involving N704K. 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
Manufacturer
WACO
Model
BSO
Type Aircraft
Fixed Wing Single Engine
ICAO Type Code
Cruise Speed
79 mph
Weight Class
Up to 12,500 lbs
Airworthiness Date
Classification
Type Registration
Individual
Status
Valid Registration
Cert Issue Date
March 25, 2009

Registered Owner

Name
HIRTLE ALAN L
Address
12110 N CAMINO DEL FIERRO
City
ORO VALLEY
State / Zip Code
Arizona85755-9180
Country
United States

Powerplant & Avionics

Engine Type
Reciprocating
Number of Engines
1
Mode S Code (Oct)
52262113
Mode S Code (Hex)
A9644B

Additional Details

Registration
N704K
Serial Number
A-164
Number of Engines
1
Number of Seats
3
Expiration Date
February 28, 2030
Last Action Date
October 7, 2023
Last Update Date
January 19, 2026
Unique ID
01017578

Data Source

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

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