Twin piston

N121WA

1979 Piper Seneca II

Registered No accidents on file
Built
1979
Serial
34-7970435
Class
Twin piston
Engines
2 × Continental TSIO-360 series
Status
Current as of October 2026
Registered owner
Weather Modification LLC (LLC)
Based
Fargo, ND
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Registration record

N121WA on the FAA register

Type
1979 Piper Seneca II (FAA: Piper PA-34-200T)
Serial
34-7970435
Engines
2 × Continental TSIO-360 series
Registered owner
Weather Modification LLC
Fargo, ND
Certificate issued
2016-10-24
Airworthiness date
2004-05-28
Registration expires
2029-10-31
Airworthiness class
Restricted
Mode S (hex)
A0595E
Mode S (octal)
50054536
Seats (type)
7
Weight class
up to 12,499 lb
Range (type)
725 nm
Cruise (type)
177 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2029-10-31
    Registration expires (renewal due).
  • 2016-10-24
    Certificate of registration issued as N121WA to the current registrant.
  • 2004-05-28
    Airworthiness date on the current FAA record (restricted category).
  • 1979
    Manufactured (1979).
  • 1976-06-14
    N121WA previously assigned to a Hiller UH-12C (s/n 792); cancelled.
Overview

About N121WA

N121WA is a 1979 Piper Seneca II (FAA model PA-34-200T), serial number 34-7970435. The FAA register lists Weather Modification LLC as the registrant in Fargo, North Dakota. The current certificate of registration was issued on October 24, 2016 and expires on October 31, 2029.

The FAA aircraft reference file describes the type as a twin piston, two Continental TSIO-360 series engines and 7 seats. Published figures for the type give a cruise speed of about 177 knots and a range of about 725 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is restricted category, dated May 28, 2004.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N121WA.

Cruise
177 kt
Range
725 nm
Power / thrust (each)
200
Takeoff over 50 ft
1,240 ft
Landing over 50 ft
2,110 ft
Fuel burn
29 gph

Published figures for the Piper Seneca II type. They describe the model, not this airframe's equipment or condition. Piper Seneca II specs, prices and for-sale inventory →

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N121WA.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Piper aircraft for sale· Piper Seneca II overview· Aircraft registered in North Dakota· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.