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Aircraft record

N9621V1974 Cessna 172M

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:No NTSB accidents or incidents since 19822 ADs may apply6 service difficulty reports

Registration
Valid
expires Nov 30, 2028
Based in
Johnstown, CO
owner city / state
Engine
0-320 SERIES · 180 hp
Lycoming
Owners
1
since 2021
NTSB events
None
since 1982
ADs may apply
2
confirm with A&P
Service reports
6
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
Hathor Aviation LLC
Owner type
LLC
City, state
Johnstown, CO
Certificate issued
Nov 23, 2021
Expires
Nov 30, 2028
Airworthiness
Standard · Normal, Utility
Airworthiness date
Nov 22, 1974

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
172M
Year
1974
Serial number
17264401
Aircraft type
Fixed wing single engine
Category
Land
Certification
Type Certificated
Seats
4
Engines
1
Max takeoff weight
Up to 12,499 lb
Mode S code
AD6623

Engine

Make and model
Lycoming 0-320 Series
Type
4 Cycle
Power
180 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. 2021 – nowHathor Aviation LLCJohnstown, CO · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (0)

No NTSB accidents or incidents found for this airframe since 1982.

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 (172M)
2011-06-02Cessna Aircraft Company (Cessna) Model 172 Airplanes Modified by Supplemental Type…May 26, 2011Airframe (172M)Only with: Modified by STC SA01303WI (installation of TAE 125-01 or TAE 125-02-99 engine).

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

Service Difficulty Reports (6)

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 · seal · leakingNov 4, 2005

    DURING 100 HOUR INSPECTION, FOUND ENGINE VACUUM PUMP DRIVE LEAKING OIL AND CONTAMINATING VACUUM PUMP. REMOVED VACUUM PUMP AND ENGINE VACUUM PUMP ADAPTOR DRIVE ASSEMBLY. FOUND SEAL P/N STD-1774 NOT FULLY INSTALLED IN DRIVE ASSY. REPLACED SEAL AND VACUUM PUMP, OPERATIONAL AND LEAK CHECK SAT. ENGINE…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Reciprocating engine · cylinder · damagedFeb 28, 2000

    PILOT REPORTED ROUGH RUNNING ENGINE AND LOW RPM. MAINTENANCE FOUND NR 4 CYLINDER HAD EXHAUST VALVE STUCK OPEN, NR 4 CYLINDER PUSH ROD AND HOUSING WERE BENT WITH NO OIL LEAKAGE. THE PISTON WAS NOT DAMAGED AND NO METAL FOUND IN THE ENGINE OIL FILTER. (X)

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Reciprocating engine · cylinder · mismanufacturedAug 21, 1998

    ENGINE L-34695-27A O/H BY TEXTRON LYC 11-8-97. INSTALLED 2-20-98. FOLLOWING TEST FLIGHT AND BREAK-IN, ACFT RELEASED FOR FLIGHT TRAINING. AT ENG SMOH 16.8 HRS ON TAKEOFF, A LOSS OF RPM AND DEGRADED CLIMB PERFORMANCE REQUIRED IMMEDIATE RETURN. SUBMITTER STATED THE DEFECT THAT CAUSED LOW POWER WAS 4…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
Show all 6 reports
  • Reciprocating engine · cylinder · mismanufacturedAug 21, 1998

    ENGINE L-34695-27A O/H BY TEXTRON LYC 11-8-97. INSTALLED 2-20-98. FOLLOWING TEST FLIGHT AND BREAK-IN, ACFT RELEASED FOR FLIGHT TRAINING. AT ENG SMOH 16.8 HRS ON TAKEOFF, A LOSS OF RPM AND DEGRADED CLIMB PERFORMANCE REQUIRED IMMEDIATE RETURN. SUBMITTER STATED DEFECT THAT CAUSED LOW POWER WAS 4…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Reciprocating engine · cylinder · mismanufacturedAug 21, 1998

    ENGINE L-34695-27A O/H BY TEXTRON LYC 11-8-97. INSTALLED 2-20-98. FOLLOWING TEST FLIGHT AND BREAK-IN, ACFT RELEASED FOR FLIGHT TRAINING. AT ENG SMOH 16.8 HRS ON TAKEOFF, A LOSS OF RPM AND DEGRADED CLIMB PERFORMANCE REQUIRED IMMEDIATE RETURN. SUBMITTER STATED DEFECT THAT CAUSED LOW POWER WAS 4…

    From FAA Service Difficulty Reports; matched by N-number and serial number.
  • Reciprocating engine · cylinder · mismanufacturedMay 21, 1998

    ENGINE L-34695-27A O/H BY TEXTRON LYC 11-8-97. INSTALLED 2-20-98. FOLLOWING TEST FLIGHT AND BREAK-IN, ACFT RELEASED FOR FLIGHT TRAINING. AT ENG SMOH 16.8 HRS ON TAKEOFF, A LOSS OF RPM AND DEGRADED CLIMB PERFORMANCE REQUIRED IMMEDIATE RETURN. SUBMITTER STATED DEFECT THAT CAUSED LOW POWER WAS 4…

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

Related aircraft

Show all 8 related aircraft
All 3,575 registered Cessna 172M aircraft

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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