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Type Record · As of May 3, 2026

HILLER UH-12B

Rotorcraft · FRANKLIN 6V4 SERIES

Registered

35

Year Range

1950–1963

NTSB Events

34

Airworthiness Directives

5

Aircraft Resources

Engine · Franklin Engine Corp (PZL-Aero) → Search FAA TCDS →

01 /  Distribution

Where the fleet lives and was built

Counts of currently-registered HILLER UH-12B aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.

By State (top 10)

  • TX 11.4% 4
  • NY 8.6% 3
  • AK 8.6% 3
  • WA 8.6% 3
  • CA 8.6% 3
  • OR 5.7% 2
  • OK 5.7% 2
  • NC 2.9% 1
  • KS 2.9% 1
  • MT 2.9% 1

+12 more states

By Decade of Manufacture

  • 1950s 62.9% 22
  • 1960s 5.7% 2
  • Unknown 31.4% 11

02 /  NTSB Records

Events involving HILLER UH-12B aircraft

34 event(s) on file. Showing the most recent 25 · 9 more available on NTSB CAROL.

03 /  Airworthiness Directives

FAA directives applicable to HILLER UH-12B

5 directive(s) on file. Showing the most recent 5.

  • Dec 6, 2000

    Airworthiness Directives; Siam Hiller Holdings, Inc. Model UH-12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E, UH-12E-L, UH-12L, and UH-12L4 Helicopters

    This amendment adopts a new airworthiness directive (AD), for Siam Hiller Holdings, Inc. (Hiller), formerly Rogerson Hiller Corporation, Model UH-12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E, UH- 12E-L, UH-12L, and UH-12L4 helicopters, that requires replacing all undrilled-shank bolts at pivoting joints in the control s…

    Atlas AD → Federal Register ↗

  • Aug 31, 2000

    Airworthiness Directives; Siam Hiller Holdings, Inc. Model UH-12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E, UH-12E-L, UH-12L, and UH-12L4 Helicopters

    This document proposes the adoption of a new airworthiness directive (AD) for Siam Hiller Holdings, Inc. (Hiller), formerly Rogerson Hiller Corporation, Model UH-12, UH-12A, UH-12B, UH-12C, UH- 12D, UH-12E, UH-12E-l, UH-12L, and UH-12L4 helicopters. The AD would require replacing all undrilled-shank bolts at pivoting…

    Atlas AD → Federal Register ↗

  • Oct 8, 1997

    Airworthiness Directives; Hiller Aircraft Corporation Model UH- 12A, UH-12B, UH-12C, UH-12D, and UH-12E Helicopters

    This amendment supersedes an existing airworthiness directive (AD), applicable to Hiller Aircraft Corporation Model UH-12A, UH-12B, UH-12C, UH-12D, and UH-12E helicopters, that currently requires a dye penetrant inspection of the head of the main rotor outboard tension- torsion (T-T) bar pin for cracks; a visual inspe…

    Atlas AD → Federal Register ↗

  • May 23, 1997

    Airworthiness Directives; Hiller Aircraft Corporation Model UH- 12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E, CH-112, H-23A, H-23B, H- 23C, H-23D, H-23F, HTE-1, HTE-2, and OH-23G Helicopters

    This amendment supersedes an existing airworthiness directive (AD), applicable to Hiller Aircraft Corporation Model UH-12, UH-12A, UH-12B, UH-12C, UH-12D, UH-12E, CH-112, H-23A, H-23B, H-23C, H-23D, H- 23F, HTE-1, HTE-2, and OH-23G helicopters, and UH-12D and UH-12E helicopters converted to turbine engine power in acc…

    Atlas AD → Federal Register ↗

  • Jun 8, 1995

    Airworthiness Directives; Hiller Aircraft Corporation Model UH- 12A, UH-12B, UH-12C, UH-12D, and UH-12E Helicopters

    This amendment adopts a new airworthiness directive (AD) that is applicable to Hiller Aircraft Corporation (Hiller) Model UH-12A, UH- 12B, UH- [[Page 30185]] 12C, UH-12D, and UH-12E helicopters. This action requires a dye-penetrant inspection of the head of the main rotor outboard tension-torsion (T-T) bar pin for cra…

    Atlas AD → Federal Register ↗

04 /  Type Certificate Data Sheets

FAA TCDS for HILLER UH-12B

The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.

06 /  Supplemental Type Certificates

Modifications approved for HILLER UH-12B

39 STCs on file — every FAA-approved modification, alteration, or installation for this aircraft. STOL kits, avionics, fuel systems, floats, engine swaps, you name it.

  • 04/14/2023

    STC SH3319NM

    Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 05/19/2020

    STC SH3319NM (1 OF 2)

    Installation of Precise Flight Pulselite Control Unit in the\nLanding /Taxi Recognition Visual Control Light system,

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 12/29/2016

    STC SH3319NM

    Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 01/14/2015

    STC SR02394AK

    Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system

    Seaplanes North LLC

    Atlas STC → DRS ↗

  • 11/13/2014

    STC SH277WE

    Installation of UH-12C Upper Canopy.

    Heck Research LLC

    Atlas STC → DRS ↗

  • 06/09/2014

    STC SH3319NM

    Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 07/25/2013

    STC SH3319NM

    Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 10/17/2012

    STC SH3319NM

    Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 05/23/2012

    STC SR02394AK

    Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system

    Floats Alaska LLC

    Atlas STC → DRS ↗

  • 03/15/2012

    STC SR02394AK

    Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system per Installation Instructions LED03-20R, Rev. IR, dated October 27, 2010.

    Floats Alaska LLC

    Atlas STC → DRS ↗

  • 02/21/2012

    STC SH3319NM

    Installation of Precise Pulselite Control System

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 10/20/2010

    STC SA00068SE (PAGE 1)

    Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1)

    Electronics International Inc.

    Atlas STC → DRS ↗

  • 12/10/2009

    STC SA2693NM (PAGE 1)

    Installation of Electronics International digital volt/amp gauges and accessories.

    Electronics International Inc.

    Atlas STC → DRS ↗

  • 06/26/2009

    STC SA01734SE (PG 2)

    Application of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.

    Stewart Thomas D. and Stewart Dan R.

    Atlas STC → DRS ↗

  • 02/10/2009

    STC SA593CH (Page 1)

    Install Champion SlickSTART magneto booster system.

    Champion Aerospace LLC

    Atlas STC → DRS ↗

  • 07/24/2008

    STC SA02033AT (PAGE 5)

    Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW)

    M-20 Oil Separators LLC

    Atlas STC → DRS ↗

  • 04/10/2006

    STC SA02033AT (PAGE 1)

    Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW)

    M-20 Oil Separators LLC

    Atlas STC → DRS ↗

  • 04/02/2006

    STC SA01240SE (1 OF 5)

    Installation of secondary voltage indication system

    Visual Instruments LLC

    Atlas STC → DRS ↗

  • 03/29/2006

    STC SA02268CH (PAGE 3)

    Installation of Airwolf Filter Corp. Air Oil Separator

    Airwolf Filter Corporation

    Atlas STC → DRS ↗

  • 07/08/2005

    STC SA00680SE (5 OF 6

    Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.

    Electronics International

    Atlas STC → DRS ↗

  • 06/29/2005

    STC SA02033AT (PAGE 1)

    Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW)

    M-20 Oil Separators LLC

    Atlas STC → DRS ↗

  • 05/17/2005

    STC SA02033AT (PAGE 1)

    Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW)

    M-20 Oil Separators LLC

    Atlas STC → DRS ↗

  • 11/04/2004

    STC SA02033AT (PAGE 3)

    Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW)

    M-20 Oil Separators LLC

    Atlas STC → DRS ↗

  • 03/12/2004

    STC SA593CH (2 OF 5)

    Install Champion SlickSTART magneto booster system.

    Champion Aerospace LLC

    Atlas STC → DRS ↗

  • 11/07/2003

    STC SH3319NM

    Installation of Precise Pulselite Control Unit in the Landing/Taxi/Recognition Visual Control Light System.

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 05/30/2002

    STC SA02520AT

    Installation of M-20 Oil Separator, model 600-WP.

    M-20 Oil Separators LLC

    Atlas STC → DRS ↗

  • 12/03/2001

    STC SH3319NM

    Installation of Precise Pulselite Control Unit in the Landing/Taxi/Recognition Visual Control Light System.

    Precise Flight Inc

    Atlas STC → DRS ↗

  • 10/25/2000

    STC SA2687NM (PAGE 1)

    Installation of Truboplus/ Electronics Int'l gauges and switches.

    Aero Manufacturing Inc.

    Atlas STC → DRS ↗

  • 03/09/1999

    STC SA00680SE (5 OF 6

    Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.

    Electronics International

    Atlas STC → DRS ↗

  • 06/08/1994

    STC SH277WE

    Installation of UH-12C upper canopy.

    Penland Helicopter Repair, Inc

    Atlas STC → DRS ↗

+ 9 more STCs on file

07 /  PMA replacement parts

FAA-approved replacement parts for HILLER UH-12B

17 parts on file from the FAA Parts Manufacturer Approval database. Each is a non-OEM part the FAA has authorized for use as a replacement on this aircraft type.

  • AA-24540-3#https://drs.faa.gov/browse/excelExternalWindow/8B383DACCA7660588625809E006183D8.0001##

    Universal Joint Assy

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24540-3

    PMA holder →

  • AA-24540-3#https://drs.faa.gov/browse/excelExternalWindow/0F0BE3536BE6EB388625809E00617A4D.0001##

    Universal Joint Assy, FWD Tail Rotor Drive

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24540-3

    PMA holder →

  • AA-24540-1#https://drs.faa.gov/browse/excelExternalWindow/1B1B916AD65515338625809E006182EB.0001##

    Universal Joint Assy

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24540-1

    PMA holder →

  • AA-24558-1#https://drs.faa.gov/browse/excelExternalWindow/3CED54835BB84B538625809E00617ACA.0001##

    End Yoke, Tail Rotor Drive Transmission

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24558-1

    PMA holder →

  • AA-24554-1#https://drs.faa.gov/browse/excelExternalWindow/8E5309B9D1ACE2FC8625809E00616C04.0001##

    End Yoke, Tail Rotor Drive, Aft Drive Shaft

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24554-1

    PMA holder →

  • AA-24562#https://drs.faa.gov/browse/excelExternalWindow/CE75740A99A53BA68625809E00617D48.0001##

    End Yoke, Tail Rotor Drive, Splined Cardan Joint

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24562

    PMA holder →

  • AA-24561#https://drs.faa.gov/browse/excelExternalWindow/6F15225C01768B408625809E00617CCB.0001##

    Cap - Tail Rotor Drive Splined Cardan Joint Yoke

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24561

    PMA holder →

  • AA-24560#https://drs.faa.gov/browse/excelExternalWindow/DE102266DA1CEA358625809E00617C47.0001##

    End Yoke Assy, Tail Rotor Drive, Splined Cardan Joint

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24560

    PMA holder →

  • AA-24559-3#https://drs.faa.gov/browse/excelExternalWindow/B88AEDD0E68A887D8625809E00617BC8.0001##

    Shaft - Tail Rotor Drive Cardan Joint, Splined

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24559-3

    PMA holder →

  • AA-24558-3#https://drs.faa.gov/browse/excelExternalWindow/65ACFFFDB30B8E908625809E00617B4A.0001##

    End Yoke, Tail Rotor Drive Transmission

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24558-3

    PMA holder →

  • AA-74184-9#https://drs.faa.gov/browse/excelExternalWindow/9B4894C09A2706D18625809E006177E6.0001##

    Fitting, Coupling Shaft, Flexible, Cooling Fan Drive, Eng.

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 74184-9

    PMA holder →

  • AA-74184-7#https://drs.faa.gov/browse/excelExternalWindow/01F22050F941BF068625809E0061776D.0001##

    Fitting, Coupling Shaft, Flexible, Cooling Fan Drive, Eng.

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 74184-7

    PMA holder →

  • AA-24540-1#https://drs.faa.gov/browse/excelExternalWindow/4BD65A92507852538625809E00617962.0001##

    Universal Joint Assy, FWD Tail Rotor Drive

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 24540-1

    PMA holder →

  • AA-43001-1#https://drs.faa.gov/browse/excelExternalWindow/4A52BF059D18A9238625809E0061728B.0001##

    Runner, Skid Landing Gear

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 43001-1

    PMA holder →

  • AA-36120#https://drs.faa.gov/browse/excelExternalWindow/A86D7C40D360FF168625809E00617219.0001##

    Button - Control Rotor Assy, Adjustment Screw

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 36120

    PMA holder →

  • AA-36112#https://drs.faa.gov/browse/excelExternalWindow/C2015210D97373A98625809E006171A3.0001##

    Sleeve, Control Rotor Hub Bearing

    Airwolf Aerospace LLC (formerly Airwolf Helicopter) replaces 36112

    PMA holder →

  • 01-0790906-00#https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182234687420220610124306.0001##

    LED Landing Light

    LoPresti Speed Merchants replaces Modification Part

    PMA holder →

04 /  Regulations watching this type

Advisory Circulars and Federal Register activity for HILLER UH-12B

Advisory Circulars

ACs whose subject explicitly mentions HILLER or UH-12B.

05 /  Aircraft of this type

All 35 registered N-numbers

Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.

35 of 35
N-number St Year NTSB FAA
N10195 OR — ● Look up ↗
N10196 NC 1960 · Look up ↗
N1023G KS 1953 · Look up ↗
N16643 MT 1952 · Look up ↗
N172SM NJ 1950 · Look up ↗
N245C NY 1953 ● Look up ↗
N307AJ AK 1952 · Look up ↗
N33616 FL 1955 ● Look up ↗
N3877L NM 1954 · Look up ↗
N41319 GA — ● Look up ↗
N47242 TX 1952 · Look up ↗
N4785C AZ 1952 ● Look up ↗
N5025J OK — · Look up ↗
N5072R WA — ● Look up ↗
N5104V SD 1963 ● Look up ↗
N5301V AK 1953 ● Look up ↗
N5306V NY — ● Look up ↗
N5311V CA 1955 ● Look up ↗
N538AC TX 1953 · Look up ↗
N62275 AK — · Look up ↗
N62329 MI — · Look up ↗
N6417V AL 1952 ● Look up ↗
N64764 CA 1952 · Look up ↗
N67016 TX — · Look up ↗
N6744C WA — ● Look up ↗
N7212H WI 1956 ● Look up ↗
N727JR OR 1953 ● Look up ↗
N7299 CA 1955 ● Look up ↗
N900JR WA 1952 · Look up ↗
N9019T TN — ● Look up ↗
N90424 OK 1951 ● Look up ↗
N90580 TX 1951 · Look up ↗
N91556 ID 1952 · Look up ↗
N941M PA — · Look up ↗
N94735 NY 1953 ● Look up ↗

Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)

05 /  Sources & Methodology

Every count traces back to a primary US-government source

We render counts and lists as the agency publishes them. Read the methodology →