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Aircraft record

N4615X1979 Cessna U206G

Registration validUnclaimedSource: FAA, updated Oct 19, 2026

Safety record in brief:1 NTSB accident (substantial damage, Sep 2017)2 ADs may apply4 service difficulty reports

Registration
Valid
expires Apr 30, 2027
Based in
South Thomaston, ME
owner city / state
Engine
IO 520 SERIES · 285 hp
Cont Motor
Owners
1
since 2009
NTSB events
1
substantial, 2017
ADs may apply
2
confirm with A&P
Service reports
4
since 1995

Registration

FAA Aircraft Registry · Oct 19, 2026
Registered owner
Waters Aero-Marine INC
Owner type
Corporation
City, state
South Thomaston, ME
Certificate issued
May 12, 2009
Expires
Apr 30, 2027
Airworthiness
Standard · Normal
Airworthiness date
Jan 9, 1980

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
U206G
Year
1979
Serial number
U20605513
Aircraft type
Fixed wing single engine
Category
Land
Certification
Type Certificated
Seats
6
Engines
1
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
A4CE
Mode S code
A5A06F

Engine

Make and model
Cont Motor Io 520 Series
Type
Turbo-shaft
Power
285 hp

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2009 – nowWaters Aero-Marine INCSouth Thomaston, ME · current
  2. 1973Martin Aviation INCPontiac, MI · different airframe: 1967 Cessna 150g S/N 15064665

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 19, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · substantial damage

Sep 1, 2017 · Harpswell, ME

A total loss of engine power due to maintenance personnel's failure to apply proper torque to the cylinder flange nuts and through bolts, which resulted in shifting of the Nos. 1, 2, and 3 main bearings, loss of lubrication, and failure of the crankshaft.

Damage
Substantial
Injuries
Minor
Report
ERA17LA307

From NTSB records; matched by serial number.Read NTSB report (search CAROL for ERA17LA307)

Accident history for this model

ADs published since 1998 that may apply (2)

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.

ADSubjectEffectiveApplies to
2011-10-09Cessna Aircraft Company Models 150, 152, 170, 172, 175, 177, 180, 182, 185, 188, 190…Jun 17, 2011Airframe (U206G)
2009-16-03Teledyne Continental Motors (TCM) IO-520, TSIO-520, and IO-550 Series Reciprocating…Sep 9, 2009Engine (IO 520 SERIES)Only with: SAP investment cast cylinder assemblies P/Ns SA52000-A1, SA52000-A20P, SA52000-A21P, SA52000-A22P, SA52000-A23P, SA55000-A1, or SA55000-A20P installed.

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (4)

Reports of failures and defects that operators and repair stations sent to the FAA since 1995. A report describes one finding; it is not an accident.

  • Reciprocating engine · cylinder · crackedOct 21, 2011

    DIR OMG 50 HR INSPECTION AND COMPRESSION CHECK, FOUND NR 3 CYLINDER LOW 56/80. AFTER REMOVAL, FOUND TO BE CRACKED BETWEEN SPARK PLUG HOLE AND INTAKE VALVE. THIS IS 1 OF SEVERAL FOUND TO BE CRACKED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Reciprocating engine · cylinder head · crackedMay 3, 2011

    NR 1 CYLINDER WAS FOUND CRACKED BETWEEN SPARK PLUG HOLE AND INTAKE VALVE. THIS IS THE 3RD CYLINDER WITH SIMILAR CRACK.

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Reciprocating engine · cylinder · crackedMay 3, 2011

    FOUND NR 1 CYLINDER CRACKED BETWEEN SPARK PLUG HOLE AND THE INTAKE VALVE. THIS IS THE 3RD CYLINDER FOUND WITH THIS SIMILAR CRACK. (END)

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 4 reports
  • Fuel · plunger · failedOct 8, 2009

    PLUNGER WAS SERVICED IAW O/H MANUAL 73-40-01 LAPPED AND INSTALLED. SUBSEQUENT TO O/H FUEL PUMP FAILED IN-FLIGHT, PUMP SENT BACK FOR WARRANTY. PLUNGER FOUND WORN, REPLACED, PUMP FUNCTION OK. O/H MANUAL VAGUE ON HOW LONG OR WEAR CAN BE BEFORE IT SHOULD BE REPLACED.

    From FAA Service Difficulty Reports; matched by N-number and serial number.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 19, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 19, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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