PORTER MICHAEL W· ICAO24 a51878· last seen Mar 2026

N4273Y is an American Aviation AA-1 Yankee, a single-engine piston aircraft operated by PORTER MICHAEL W. SkyMeter has tracked 70 flights totalling 39 hours of airtime via ADS-B. The most frequent segment is 52CA to KRAL. Service window in our records spans 293 days. Of those flights, 6 (8.6%) carry at least one detected incident — go-around, unstable approach, stall warning, or runway excursion. The American Aviation AA-1 Yankee has a maximum takeoff weight of 1,500 lb, light wake category.

About the American Aviation AA-1 Yankee

The American Aviation AA-1 Yankee is a compact two-seat trainer and personal aircraft that emerged in the late 1960s as one of the first all-metal, low-wing designs aimed at the entry-level market. Built initially by American Aviation (later Grumman American), the Yankee featured a distinctive bonded aluminum honeycomb fuselage construction that was both lightweight and rigid, allowing the aircraft to achieve sprightly handling characteristics unusual for trainers of its era. Powered by a 108-horsepower Lycoming O-235 engine, the AA-1 was designed for simplicity and economy, with a fixed tricycle landing gear and a sliding canopy that gave occupants excellent visibility.

Its clean aerodynamic lines and relatively low drag made it faster than many contemporaries in cruise, though the short-coupled design and sensitive controls earned it a reputation as a pilot's airplane that rewarded precision. The Yankee's operating envelope includes a never-exceed speed of 158 knots and a stall speed of 50 knots in landing configuration, with a maximum takeoff weight of just 1,500 pounds. The type found favor with flight schools and private owners seeking an affordable, fun-to-fly aircraft, though production numbers remained modest compared to Cessna and Piper trainers.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
70
all time
FLOWN HOURS
39
tracked time
📍
AIRPORTS VISITED
17
unique
📡
CALLSIGNS
1
22 routes
📅
SERVICE PERIOD
05/31/2025 → 03/21/2026
first → last
INCIDENT RATE
8.6%
6 flagged

Top routes

By flight count

10
2
2
2
2
2
1
1
1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

American Aviation AA-1 Yankee

Engines
Single Piston
Vref (approach)
65 kt
MTOW
1,500 lb
Wake category
L

Recent flights

Newest 37 operations of N4273Y

37
03/21/2026
16m
No alerts
01/31/2026
6m
No alerts
01/29/2026
33m
No alerts
12/27/2025
39m
No alerts
12/25/2025
24m
△ Unstable approach
12/21/2025
36m
△ Unstable approach
12/21/2025
1h 7m
No alerts
12/20/2025
16m
△ Unstable approach
12/20/2025
32m
No alerts
12/20/2025
1h 1m
No alerts
12/20/2025
16m
No alerts
12/18/2025
28m
No alerts
12/17/2025
21m
No alerts
12/17/2025
3m
No alerts
12/14/2025
14m
No alerts
11/13/2025
33m
No alerts
11/13/2025
2m
No alerts
11/13/2025
16m
No alerts
11/12/2025
4m
No alerts
11/08/2025
54m
No alerts
11/08/2025
3m
No alerts
11/08/2025
4m
No alerts
10/02/2025
2m
No alerts
10/02/2025
12m
No alerts
09/24/2025
25m
No alerts
08/22/2025
25m
No alerts
08/22/2025
23m
No alerts
08/07/2025
2m
No alerts
08/07/2025
17m
No alerts
08/01/2025
9m
No alerts
08/01/2025
11m
No alerts
06/28/2025
3h 46m
No alerts
06/19/2025
22m
No alerts
06/19/2025
25m
No alerts
05/31/2025
8m
No alerts
05/31/2025
12m
No alerts
05/31/2025
3h 34m
No alerts
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