SPENCER DOUGLAS J· ICAO24 a1c82d· last seen 1d ago

N2138X is a Cessna 337 Skymaster, a twin-engine piston aircraft operated by SPENCER DOUGLAS J. SkyMeter has tracked 18 flights totalling 43 hours of airtime via ADS-B. The most frequent segment is KS67 to E36. Service window in our records spans 87 days. Of those flights, 4 (22.2%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Cessna 337 Skymaster has a maximum takeoff weight of 4,630 lb, light wake category.

About the Cessna 337 Skymaster

The Cessna 337 Skymaster is one of aviation's most distinctive light twins, instantly recognizable by its push-pull centerline engine configuration: one tractor propeller on the nose, one pusher at the tail. Introduced in 1965, this unconventional layout solved the most dangerous problem facing conventional twin pilots: asymmetric thrust after an engine failure. With both engines mounted on the fuselage centerline, the Skymaster eliminates the yawing moment that causes loss-of-control accidents in traditional twins, making single-engine handling straightforward enough that it earned a reputation as the safest twin-engine aircraft for low-time pilots.

Cessna built more than 2,000 Skymasters in various configurations between 1965 and 1982, including the pressurized P337 and the military O-2 variant used extensively as a forward air control platform in Vietnam. The O-2 carried smoke rockets under the wings and flew low and slow over the jungle, marking targets for strike aircraft, a mission that demanded reliability and the ability to limp home on one engine. The civilian 337 found favor with aerial survey operators, pipeline patrol pilots, and owner-fliers who valued the safety margin of twin-engine redundancy without the demanding handling characteristics of conventional twins.

Performance is modest by twin standards: cruise around 170 knots on both engines, service ceiling near 19,000 feet, and a range of roughly 1,000 nautical miles with reserves. The rear engine runs hotter than the front and requires careful monitoring, and parts availability has become challenging as the fleet ages, but the type remains popular among pilots who appreciate its unique engineering solution to the twin-engine safety problem. SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
18
all time
FLOWN HOURS
43
tracked time
📍
AIRPORTS VISITED
10
unique
📡
CALLSIGNS
1
9 routes
📅
SERVICE PERIOD
06/01/2026 → 08/28/2026
first → last
INCIDENT RATE
22.2%
4 flagged

Top routes

By flight count

5
KS67 E36
1
E36 KS67
1
1
1
KCIC E36
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Cessna 337 Skymaster

Engines
Twin Piston
Vref (approach)
70 kt
MTOW
4,630 lb
Wake category
L

Recent flights

Newest 13 operations of N2138X

13
08/28/2026
2h 15m
△ Low approach-stability score
08/07/2026
2h 30m
No alerts
08/02/2026
2h 16m
△ Low approach-stability score
07/12/2026
2h 33m
No alerts
07/12/2026
10m
No alerts
07/12/2026
5h 13m
No alerts
06/03/2026
14m
No alerts
06/02/2026
4h 51m
No alerts
06/02/2026
2h 19m
No alerts
06/02/2026
3h 9m
No alerts
06/02/2026
12m
No alerts
06/02/2026
30m
No alerts
06/01/2026
35m
No alerts
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