Models / Cessna / T337G / N1ZR Aircraft record N1ZR 1977 Cessna T337G Registration valid Unclaimed Source: FAA, updated Oct 19, 2026Safety record in brief: 1 NTSB accident (substantial damage, Nov 2018) · 3 ADs may apply
Registration Valid expires Dec 31, 2030 NTSB events 1 substantial, 2018 ADs may apply 3 confirm with A&P Service reports 0 since 1995
Registration FAA Aircraft Registry · Oct 19, 2026
Registered owner Bio Mass LLC
Owner type LLC
City, state Kalispell, MT
Certificate issued Dec 13, 2023
Expires Dec 31, 2030
Airworthiness Standard · Normal
Airworthiness date Mar 18, 1977 We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.
Airframe & engine FAA Registry + type data Airframe
Manufacturer Cessna
Model T337G
Year 1977
Serial number P3370275
Aircraft type Fixed wing multi engine
Category Land
Certification Type Certificated
Seats 6
Engines 2
Max takeoff weight Up to 12,499 lb
Mode S code A00251 Engine
Make and model Cont Motor Tsio-360 Ser
Type Reciprocating
Power 225 hp Total time and engine hours aren't public. They appear here once the owner adds logbooks.
Ownership history Ownership history from FAA records 2023 – now Bio Mass LLC Kalispell, MT · current Individual owners are shown by city and state only.
Safety record NTSB · Oct 15, 2026 · FAA ADs · Oct 18, 2026 · SDRs · Oct 16, 2026 ADs published since 1998 that may apply (3) These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.
AD Subject Effective Applies to 2011-15-11 Cessna Aircraft Company (Cessna) Models 337, 337A (USAF 02B), 337B, 337C, 337D, 337E… Sep 6, 2011 Airframe (T337G)Only with: Airplanes that are or have ever been modified by Flint Aero, Inc. STC SA5090NM. 2011-10-09 Cessna Aircraft Company Models 150, 152, 170, 172, 175, 177, 180, 182, 185, 188, 190… Jun 17, 2011 Airframe (T337G) 2010-21-18 Cessna Aircraft Company (Cessna) Models 336, 337, 337A (USAF 02B), 337B, M337B (USAF… Nov 3, 2010 Airframe (T337G)Only with: Airplanes that are or have ever been modified by Aviation Enterprises STC SA02055AT, SA02056AT, SA02307AT, or SA02308AT.
AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.
Service Difficulty Reports (0) No Service Difficulty Reports found for this airframe since 1995.
Sources FAA Aircraft Registry Registration, owner city and state, airframe, engine updated Oct 19, 2026 NTSB accident and incident database Accidents and incidents since 1982 updated Oct 15, 2026 FAA Airworthiness Directives (Federal Register) ADs published since 1998 updated Oct 18, 2026 FAA Service Difficulty Reports Reports since 1995 updated Oct 16, 2026 Request owner name removal Report an error in this record