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N439DF — Grumman S-2T Tracker air tanker
Photo by Westley_SJU / Planespotters.net
CAL FIRE S-2T Airtanker

N439DF

UFUsda Forest Service Fepp
Aircraft
Grumman S-2T Tracker air tankerS2T
Operator
Usda Forest Service Fepp
Mode-S
A544DE
Registry
United States
FAA status
Valid

S2T registered to USDA Forest Service FEPP.

Airframe passport

The current identity we can safely join across FAA registration and movement records. Each claim keeps its source boundary visible.

government registry
No obvious registry flagsFAA current row, decoded aircraft data, and JetSweep linkage are available.
Registry claim

MARSH AVIATION S-2F3AT operated by USDA Forest Service FEPP.

FAA Registry N439DF · snapshot Aug 10, 2026 ↗
Identity
Current tail
N439DF
Mode-S
A544DE
Serial
149854
Aliases
N439DF · A544DE · 149854
Registration
Owner
USDA FOREST SERVICE FEPP
Status
Valid
Location
MCCLELLAN, CA
Certificate
Feb 1, 2000
Airframe
Type
MARSH AVIATION S-2F3AT
Year
2002
Seats
5
Engine
AIRESEARCH TPE331 SERIES
We track the aircraft, not who is aboard. Ownership reflects the FAA registrant; attribution and purpose, where shown, are tiered by evidence. Some tails are blocked from public display.