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Aircraft record

N642721965 Hiller UH-12E

DeregisteredUnclaimedSource: FAA, updated Oct 17, 2026

This N-number isn't registered right now. Below is its last known registration, canceled Mar 6, 2023.

Safety record in brief:1 NTSB accident (substantial damage, Jul 2022)4 ADs may apply

Registration
Deregistered
Last based in
Big Lake, MN
owner city / state
Engine
IO-540 SER · 300 hp
Lycoming
Owners
1
since 2013
NTSB events
1
substantial, 2022
ADs may apply
4
confirm with A&P
Service reports
0
since 1995

Registration

FAA Aircraft Registry · Oct 17, 2026
Last registered owner
Dechene Corp
Owner type
Corporation
City, state
Big Lake, MN
Certificate issued
Oct 24, 2013
Canceled
Mar 6, 2023
Airworthiness
Standard · Normal
Airworthiness date
May 23, 1996

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
Hiller
Model
UH-12E
Year
1965
Serial number
1679
Aircraft type
Rotorcraft
Category
Land
Certification
Type Certificated
Seats
4
Engines
1
Max takeoff weight
Up to 12,499 lb
Type certificate data sheet
4H11
Mode S code
A87011

Engine

Make and model
Lycoming Io-540 Ser
Type
Reciprocating
Power
300 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. 2013 – 2023Dechene CorpBig Lake, MN

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 17, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · substantial damage

Jul 6, 2022 · Becker, MN

The in-flight failure of the main rotor mast hub due to several undetected fatigue fractures.

Damage
Substantial
Injuries
Serious
Report
CEN22LA318

From NTSB records; matched by serial number.Read NTSB report (search CAROL for CEN22LA318)

Accident history for this model

ADs published since 1998 that may apply (4)

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
2005-19-11Lycoming Engines (Formerly Textron Lycoming) AEIO-360, IO-360, O-360, LIO-360, LO-360…Oct 21, 2005Engine (IO-540 SER)Only with: Engines rated at 300 HP or lower, manufactured new, rebuilt, or overhauled after March 1, 1999, or that had a crankshaft installed after March 1, 1999.
2004-05-24Lycoming Engines (Formerly Textron Lycoming) AEIO-540, IO-540, LTIO-540, O-540, and…Mar 30, 2004Engine (IO-540 SER)Only with: Engines with crankshaft gear retaining bolts P/N STD-2209 installed; excludes O-540-F series engines subject to AD 99-03-05 with bolt not since replaced, engines with bolt installed at original assembly or replaced by Lycoming per SB 554 after November 10, 1998, engines with bolt from replacement kits 05K19987, 05K23325, 05K23326, 05K23327, 05K23335 or 05K23336, and engines with single-drive dual magnetos.
97-20-15Hiller Aircraft Corporation Model UH- 12A, UH-12B, UH-12C, UH-12D, and UH-12E HelicoptersNov 12, 1997Airframe (UH-12E)
97-10-16Hiller Aircraft Corporation Model UH- 12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E…Jun 27, 1997Airframe (UH-12E)Only with: Having control rotor blade spar tube P/N 36003, 36006, 36129, 36129-25, 36203, 36203-15, 36203-21, or 36209-3, or cuff P/N 36101-1, 36101-4, 36108, 36115-1, 36115-4, 36115-6, 36115-8, or 36124 installed; includes UH-12D and UH-12E converted to turbine power per STC SH177WE and SH178WE.

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 RegistryRegistration, owner city and state, airframe, engineupdated Oct 17, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 17, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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