# Hiller UH-12B

- Type: Aircraft model (FAA registry)
- Registry code: 4360110
- Manufacturer (registry): HILLER
- Model: UH-12B
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Reciprocating
- Seats: 4
- Weight class: Up to 12,499 lb
- Cruise speed: 63 mph
- Certification: Type certificated
- Data sheet: [TCDS 6H2](https://openairdocs.org/tcds/6H2) (OpenAirDocs)
- Holder: Siam Hiller Holdings Inc.
- Registered aircraft: 35
- Page: https://openairdocs.org/model/hiller-uh-12b

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023
- [AD 2015-20-51](https://openairdocs.org/ad/2015-20-51): Hiller UH-12, UH-12A, UH-12B and 6 more
- [AD 2000-24-21](https://openairdocs.org/ad/2000-24-21): Control System Linkage · Hiller UH-12, UH-12A, UH-12B and 6 more. Effective Jan 10, 2001
- [AD 97-20-15](https://openairdocs.org/ad/97-20-15): Outboard Tension-Torsion Bar Pin · Hiller UH-12A, UH-12B, UH-12C and 2 more. Effective Nov 12, 1997
- [AD 97-10-16](https://openairdocs.org/ad/97-10-16): Blade Spar Tube and Cuff Inspection · Allison 250-C20/250-C20B engine (Siam Hiller Holdings STC SH177WE or SH178WE). Effective Jun 27, 1997
- [AD 83-25-02](https://openairdocs.org/ad/83-25-02): Main Rotor Blade Doublers · Allison 250-C20/250-C20B engine (Siam Hiller Holdings STC SH177WE). Effective Dec 29, 1983
- [AD 81-18-02](https://openairdocs.org/ad/81-18-02): Tail Rotor Skin Cracks · Hiller UH-12, UH-12A, UH-12B and 6 more. Effective Sep 10, 1981
- [AD 81-17-03](https://openairdocs.org/ad/81-17-03): Main Transmission · Hiller UH-12, UH-12A, UH-12B and 6 more. Effective Aug 24, 1981
- [AD 81-17-01](https://openairdocs.org/ad/81-17-01): Starting Vibrator Assemblies · Bendix Starting Vibrator Assemblies, B-2, B-2A and 49 more. Effective Aug 13, 1981
- [AD 73-20-03](https://openairdocs.org/ad/73-20-03): Main Rotor Hub · Hiller UH-12, UH-12A, UH-12B and 4 more. Effective Oct 30, 1973
- [AD 71-25-08](https://openairdocs.org/ad/71-25-08): Inspect Main Rotor Blades · Hiller UH-12, UH-12A, UH-12B and 6 more. Effective Dec 14, 1971
- [AD 63-04-02](https://openairdocs.org/ad/63-04-02): Tail Rotor Blade · Hiller UH-12, UH-12A, UH-12B and 1 more. Effective Feb 12, 1963
- [AD 62-03-01](https://openairdocs.org/ad/62-03-01): Tail Rotor · Hiller UH-12A and UH-12B. Effective Jan 30, 1962
- [AD 59-25-03](https://openairdocs.org/ad/59-25-03): Wobble Plate Screws · Hiller UH-12, UH-12A, UH-12B and 3 more
- [AD 59-05-05](https://openairdocs.org/ad/59-05-05): Cyclic Control Scissor Casting · Hiller UH-12, UH-12A, UH-12B and 3 more
- [AD 58-02-03](https://openairdocs.org/ad/58-02-03): Carburetor Mixture Control Removal · Hiller UH-12, UH-12A, UH-12B and 2 more
- [AD 56-27-02](https://openairdocs.org/ad/56-27-02): Engine Mount Welds · Hiller UH-12, UH-12A and UH-12B
- [AD 56-09-01](https://openairdocs.org/ad/56-09-01): Tail Rotor Torsion Bar · Hiller UH-12, UH-12A, UH-12B and 1 more
- [AD 55-19-01](https://openairdocs.org/ad/55-19-01): Tail Boom Rear Bulkhead · Hiller UH-12, UH-12A and UH-12B
- [AD 53-24-02](https://openairdocs.org/ad/53-24-02): Tail Rotor Pitch Change Rod · Hiller UH-12, UH-12A and UH-12B
- [AD 53-12-01](https://openairdocs.org/ad/53-12-01): Horizontal Stabilizer Spar · Hiller UH-12, UH-12A and UH-12B
- [AD 53-09-03](https://openairdocs.org/ad/53-09-03): Outboard Tension Bar Pins · Hiller UH-12, UH-12A and UH-12B
- [AD 52-29-01](https://openairdocs.org/ad/52-29-01): Tail Rotor Drive Slip Joint Assembly Inspection · Hiller UH-12, UH-12A and UH-12B
- [AD 52-01-08](https://openairdocs.org/ad/52-01-08): Collective Pitch Incidence Arms · Hiller UH-12, UH-12A and UH-12B

Historical (superseded or no longer in force):

- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021
- [AD 77-07-05 R1](https://openairdocs.org/ad/77-07-05-R1) (historical): Control Rotor Blade Spar Tube and Cuff · Hiller UH-12, UH-12A, UH-12B and 3 more. Effective Jun 20, 1977
- [AD 77-07-05](https://openairdocs.org/ad/77-07-05) (historical): Control Rotor Blade Spar Tube and Cuff · Hiller UH-12, UH-12A, UH-12B and 3 more. Effective Jun 20, 1977

## Registered aircraft (35)

- [N10195](https://openairdocs.org/aircraft/N10195): [Deuchar Hillary](https://openairdocs.org/faa-owner/DEUCHAR%20HILLARY), [Brookings, OR](https://openairdocs.org/faa-place/OR/Brookings), S/N 562
- [N10196](https://openairdocs.org/aircraft/N10196): [Porter Kelton B](https://openairdocs.org/faa-owner/PORTER%20KELTON%20B), [Homer, AK](https://openairdocs.org/faa-place/AK/Homer), built 1960, S/N 340
- [N1023G](https://openairdocs.org/aircraft/N1023G): [Continental Title Trust LLC Trustee](https://openairdocs.org/faa-owner/CONTINENTAL%20TITLE%20TRUST%20LLC%20TRUSTEE), [Wichita, KS](https://openairdocs.org/faa-place/KS/Wichita), built 1953, S/N 51-16307
- [N16643](https://openairdocs.org/aircraft/N16643): [Koch Kasey E](https://openairdocs.org/faa-owner/KOCH%20KASEY%20E), [Bigfork, MT](https://openairdocs.org/faa-place/MT/Bigfork), built 1952, S/N 346
- [N172SM](https://openairdocs.org/aircraft/N172SM): [Sedeyn Thomas Sr](https://openairdocs.org/faa-owner/SEDEYN%20THOMAS%20SR), [Salem, NJ](https://openairdocs.org/faa-place/NJ/Salem), built 1950, S/N 317
- [N245C](https://openairdocs.org/aircraft/N245C): [Hansen Christopher H](https://openairdocs.org/faa-owner/HANSEN%20CHRISTOPHER%20H), [Durhamville, NY](https://openairdocs.org/faa-place/NY/Durhamville), built 1953, S/N 324
- [N307AJ](https://openairdocs.org/aircraft/N307AJ): [Swashbuckle Air LLC](https://openairdocs.org/faa-owner/SWASHBUCKLE%20AIR%20LLC), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1952, S/N 426
- [N33616](https://openairdocs.org/aircraft/N33616): [Lakeland, FL](https://openairdocs.org/faa-place/FL/Lakeland), built 1955, S/N 720, Sale reported
- [N3877L](https://openairdocs.org/aircraft/N3877L): [Jarrell Stephen L](https://openairdocs.org/faa-owner/JARRELL%20STEPHEN%20L), [Edgewood, NM](https://openairdocs.org/faa-place/NM/Edgewood), built 1954, S/N 674
- [N41319](https://openairdocs.org/aircraft/N41319): [Aspinwall W Frank](https://openairdocs.org/faa-owner/ASPINWALL%20W%20FRANK), [Kingsland, GA](https://openairdocs.org/faa-place/GA/Kingsland), S/N 433
- [N47242](https://openairdocs.org/aircraft/N47242): [Pockrus Pat B](https://openairdocs.org/faa-owner/POCKRUS%20PAT%20B), [Mineral Wells, TX](https://openairdocs.org/faa-place/TX/Mineral%20Wells), built 1952, S/N 491
- [N4785C](https://openairdocs.org/aircraft/N4785C): [Borszich Claude C Jr](https://openairdocs.org/faa-owner/BORSZICH%20CLAUDE%20C%20JR), [Phoenix, AZ](https://openairdocs.org/faa-place/AZ/Phoenix), built 1952, S/N 312
- [N5025J](https://openairdocs.org/aircraft/N5025J): [Anderson Mike DBA](https://openairdocs.org/faa-owner/ANDERSON%20MIKE%20DBA), [Muskogee, OK](https://openairdocs.org/faa-place/OK/Muskogee), S/N 726
- [N5072R](https://openairdocs.org/aircraft/N5072R): [Fogelson Robert A](https://openairdocs.org/faa-owner/FOGELSON%20ROBERT%20A), [Benton City, WA](https://openairdocs.org/faa-place/WA/Benton%20City), S/N 613
- [N5104V](https://openairdocs.org/aircraft/N5104V): [Outka Wade R](https://openairdocs.org/faa-owner/OUTKA%20WADE%20R), [Aberdeen, SD](https://openairdocs.org/faa-place/SD/Aberdeen), built 1963, S/N JR-1
- [N5301V](https://openairdocs.org/aircraft/N5301V): [Vrem Kelly L](https://openairdocs.org/faa-owner/VREM%20KELLY%20L), [Sutton, AK](https://openairdocs.org/faa-place/AK/Sutton), built 1953, S/N 563
- [N5306V](https://openairdocs.org/aircraft/N5306V): [Donnelly Matthew J](https://openairdocs.org/faa-owner/DONNELLY%20MATTHEW%20J), [Romulus, NY](https://openairdocs.org/faa-place/NY/Romulus), S/N 632
- [N5311V](https://openairdocs.org/aircraft/N5311V): [Botello Michael C](https://openairdocs.org/faa-owner/BOTELLO%20MICHAEL%20C), [Rancho Mirage, CA](https://openairdocs.org/faa-place/CA/Rancho%20Mirage), built 1955, S/N 703
- [N538AC](https://openairdocs.org/aircraft/N538AC): [Hardy John S](https://openairdocs.org/faa-owner/HARDY%20JOHN%20S), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 1953, S/N 538
- [N62275](https://openairdocs.org/aircraft/N62275): [Selzer Robert S](https://openairdocs.org/faa-owner/SELZER%20ROBERT%20S), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), S/N 420
- [N62329](https://openairdocs.org/aircraft/N62329): [Puch Len D](https://openairdocs.org/faa-owner/PUCH%20LEN%20D), [New Boston, MI](https://openairdocs.org/faa-place/MI/New%20Boston), S/N 558
- [N6417V](https://openairdocs.org/aircraft/N6417V): [Stokes Teddie V](https://openairdocs.org/faa-owner/STOKES%20TEDDIE%20V), [Holly Pond, AL](https://openairdocs.org/faa-place/AL/Holly%20Pond), built 1952, S/N 417
- [N64764](https://openairdocs.org/aircraft/N64764): [Riverbank, CA](https://openairdocs.org/faa-place/CA/Riverbank), built 1952, S/N 489, Registration pending
- [N67016](https://openairdocs.org/aircraft/N67016): [Grein Darrell L](https://openairdocs.org/faa-owner/GREIN%20DARRELL%20L), [Cypress, TX](https://openairdocs.org/faa-place/TX/Cypress), S/N 492
- [N6744C](https://openairdocs.org/aircraft/N6744C): [Kiska Farms Inc](https://openairdocs.org/faa-owner/KISKA%20FARMS%20INC), [Pasco, WA](https://openairdocs.org/faa-place/WA/Pasco), S/N 556
- [N7212H](https://openairdocs.org/aircraft/N7212H): [Carriveau Vincent A](https://openairdocs.org/faa-owner/CARRIVEAU%20VINCENT%20A), [Franksville, WI](https://openairdocs.org/faa-place/WI/Franksville), built 1956, S/N 212
- [N727JR](https://openairdocs.org/aircraft/N727JR): [Middlestetter Matt](https://openairdocs.org/faa-owner/MIDDLESTETTER%20MATT), [Camp Sherman, OR](https://openairdocs.org/faa-place/OR/Camp%20Sherman), built 1953, S/N 571
- [N7299](https://openairdocs.org/aircraft/N7299): [Classic Rotors Museum](https://openairdocs.org/faa-owner/CLASSIC%20ROTORS%20MUSEUM), [Ramona, CA](https://openairdocs.org/faa-place/CA/Ramona), built 1955, S/N 729
- [N900JR](https://openairdocs.org/aircraft/N900JR): [Hoelzen Robert D Trustee](https://openairdocs.org/faa-owner/HOELZEN%20ROBERT%20D%20TRUSTEE), [Kent, WA](https://openairdocs.org/faa-place/WA/Kent), built 1952, S/N 664
- [N9019T](https://openairdocs.org/aircraft/N9019T): [Berry Darrel L](https://openairdocs.org/faa-owner/BERRY%20DARREL%20L), [Camden, TN](https://openairdocs.org/faa-place/TN/Camden), S/N 697
- [N90424](https://openairdocs.org/aircraft/N90424): [Meeks William M III](https://openairdocs.org/faa-owner/MEEKS%20WILLIAM%20M%20III), [Tulsa, OK](https://openairdocs.org/faa-place/OK/Tulsa), built 1951, S/N 389
- [N90580](https://openairdocs.org/aircraft/N90580): [Lloyd Brian P](https://openairdocs.org/faa-owner/LLOYD%20BRIAN%20P), [Spring Branch, TX](https://openairdocs.org/faa-place/TX/Spring%20Branch), built 1951, S/N 298
- [N91556](https://openairdocs.org/aircraft/N91556): [Botich David A DBA](https://openairdocs.org/faa-owner/BOTICH%20DAVID%20A%20DBA), [Clark Fork, ID](https://openairdocs.org/faa-place/ID/Clark%20Fork), built 1952, S/N 300
- [N941M](https://openairdocs.org/aircraft/N941M): [Hayhurst Shane R](https://openairdocs.org/faa-owner/HAYHURST%20SHANE%20R), [Winfield, PA](https://openairdocs.org/faa-place/PA/Winfield), S/N 625
- [N94735](https://openairdocs.org/aircraft/N94735): [Dhc Aviation LLC](https://openairdocs.org/faa-owner/DHC%20AVIATION%20LLC), [Newburgh, NY](https://openairdocs.org/faa-place/NY/Newburgh), built 1953, S/N 523

## NTSB investigations (48)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA13LA127](https://openairdocs.org/ntsb/ERA13LA127), Feb 6, 2013: Hiller UH-12B (N5072R), Merritt Island, FL, substantial damage. Probable cause: A total loss of engine power due to fuel starvation, which resulted from an overstress failure of a fitting on the fuel supply line and led to an autorotation and hard landing.
- [NTSB CEN12LA650](https://openairdocs.org/ntsb/CEN12LA650), Sep 19, 2012: Hiller UH-12B (N94735), Rio Vista, TX, substantial damage. Probable cause: The catastrophic failure and disintegration of the No. 6 engine piston, which resulted in a total loss of engine power.
- [NTSB WPR12LA244](https://openairdocs.org/ntsb/WPR12LA244), Jun 4, 2012: Hiller UH-12B (N93467), Pasco, WA, substantial damage. Probable cause: The pilot's failure to maintain the helicopter's rotor rpm while maneuvering at a low altitude over a fruit orchard.
- [NTSB DFW07WA062](https://openairdocs.org/ntsb/DFW07WA062), Jan 25, 2007: Hiller UH-12B (N727JR), Panama City, Panama, substantial damage
- [NTSB LAX05LA112](https://openairdocs.org/ntsb/LAX05LA112), Mar 12, 2005: Hiller UH-12B (N5311V), Thermal, CA, substantial damage. Probable cause: the pilot's inadequate in-flight planning and failure to refuel the helicopter, which resulted in fuel exhaustion.
- [NTSB ANC04LA027](https://openairdocs.org/ntsb/ANC04LA027), Feb 22, 2004: Hiller UH-12B (N5304V), Bradenton, FL, substantial damage. Probable cause: The pilot's inadequate in-flight planning/decision which resulted in fuel exhaustion. Also causal was the pilot's failure to maintain adequate rotor speed, resulting in a hard landing.
- [NTSB MIA01LA085](https://openairdocs.org/ntsb/MIA01LA085), Feb 24, 2001: Hiller UH-12B (N5307V), Whitesburg, GA, substantial damage. Probable cause: The improper emergency procedure performed by the pilot due to his electing to perform a run-on landing resulting in excessive airspeed at touchdown and subsequent roll-over following ground contact…
- [NTSB MIA00LA111](https://openairdocs.org/ntsb/MIA00LA111), Mar 17, 2000: Hiller UH-12B (N5304V), Sanford, FL, substantial damage. Probable cause: The pilot's improper collective and cyclic control usage during an emergency descent, following the onset of a 1 to 1 vibration for undetermined reasons, resulting in the helicopter landing hard and…
- [NTSB FTW94LA147](https://openairdocs.org/ntsb/FTW94LA147), May 8, 1994: Hiller UH-12B (N6417V), Crystal Beach, TX, substantial damage. Probable cause: THE PILOT'S IMPROPER AUTOROTATION TOUCHDOWN, WHICH RSULTED IN THE HARD LANDING. A FACTOR WAS THE POWER LOSS DUE TO WATER CONTAMINATED FUEL.
- [NTSB FTW94LA125](https://openairdocs.org/ntsb/FTW94LA125), Apr 16, 1994: Hiller UH-12 (N41319), Alvin, TX, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN ROTOR SPEED, DELAY OF THE FLARE, AND THE IMPROPER TOUCHDOWN. A FACTOR WAS THE LOSS OF ENGINE POWER FOR UNDETERMINED REASONS.
- [NTSB NYC91LA189](https://openairdocs.org/ntsb/NYC91LA189), Jul 27, 1991: Hiller UH-12B (N62246), Westfield, MA, substantial damage. Probable cause: THE PILOT'S FAILURE TO REFUEL RESULTING IN A POWER FAILURE DUE TO FUEL EXHAUSTION, AND SUBSEQUENT FORCED LANDING IN UNSUITABLE TERRAIN.
- [NTSB MIA90LA111](https://openairdocs.org/ntsb/MIA90LA111), Apr 26, 1990: Hiller UH-12B (N5306V), Sanford, FL, substantial damage. Probable cause: LOSS OF ENGINE POWER FOR AN UNKNOWN REASON.
- [NTSB ATL88LA030](https://openairdocs.org/ntsb/ATL88LA030), Nov 7, 1987: Hiller UH-12B (N922TE), Newnan, GA, substantial damage
- [NTSB CHI87LA045](https://openairdocs.org/ntsb/CHI87LA045), Nov 29, 1986: Hiller UH-12B (N48209), Capac, MI, substantial damage
- [NTSB SEA86FA139](https://openairdocs.org/ntsb/SEA86FA139), Jun 8, 1986: Hiller UH12B (N41319), Rathdrum, ID, destroyed
- [NTSB MKC86FA082](https://openairdocs.org/ntsb/MKC86FA082), Apr 7, 1986: Hiller UH-12B (N5307V), Fall River, KS, destroyed
- [NTSB ATL83FA261](https://openairdocs.org/ntsb/ATL83FA261), Jul 9, 1983: Hiller UH-12B (N922TE), Huntsville, AL, substantial damage
- [NTSB SEA83LA132](https://openairdocs.org/ntsb/SEA83LA132), Jun 23, 1983: Hiller UH-12B (N245C), Jerome, ID, substantial damage
- [NTSB CHI82DA332](https://openairdocs.org/ntsb/CHI82DA332), Sep 2, 1982: Hiller 12B (N48209), Detroit, MI, substantial damage
- [NTSB DEN82FTM04](https://openairdocs.org/ntsb/DEN82FTM04), Nov 16, 1981: Hiller UH12C (N6417V), Logan, UT, substantial damage
- [NTSB LAX81FVW17](https://openairdocs.org/ntsb/LAX81FVW17), Aug 22, 1981: Hiller Acft UH-12B (N94525), Las Vegas, NV, substantial damage
- [NTSB NYC81DFJ06](https://openairdocs.org/ntsb/NYC81DFJ06), Feb 27, 1981: Hiller UH-12B (N90803), Jamestown, NY, substantial damage
- [NTSB LAX81FUG06](https://openairdocs.org/ntsb/LAX81FUG06), Dec 25, 1980: Hiller Acft UH-12B (N94731), Rialto, CA, substantial damage
- [NTSB LAX81DUG05](https://openairdocs.org/ntsb/LAX81DUG05), Nov 18, 1980: Hiller Acft UH-12B (N5310V), Rialto, CA, destroyed
- [NTSB NYC80FHD07](https://openairdocs.org/ntsb/NYC80FHD07), Nov 6, 1979: Hiller UH12B (N10195), Mount Holly, NJ, substantial damage
- [NTSB ANC79DAG75](https://openairdocs.org/ntsb/ANC79DAG75), Aug 1, 1979: Hiller UH-12B (N5310V), Dutch Harbor, AK, substantial damage
- [NTSB OAK79FVD11](https://openairdocs.org/ntsb/OAK79FVD11), Feb 25, 1979: Hiller UH-12B (N94731), Brentwood, CA, substantial damage
- [NTSB CHI77FEM43](https://openairdocs.org/ntsb/CHI77FEM43), Sep 26, 1977: Hiller UH-12B (N94735), Carrollton, MI, destroyed
- [NTSB LAX77DVA16](https://openairdocs.org/ntsb/LAX77DVA16), Jan 15, 1977: Hiller Acft UH-12C (N6417V), Terra Bella, CA, substantial damage
- [NTSB NYC76FGM05](https://openairdocs.org/ntsb/NYC76FGM05), Sep 3, 1975: Hiller Acft UH-12B (N90424), Beaver Falls, PA, substantial damage
- [NTSB NYC75FGM32](https://openairdocs.org/ntsb/NYC75FGM32), Apr 1, 1975: Hiller Acft UH-12B (N90424), Beaver Falls, PA, substantial damage
- [NTSB OAK75DVA38](https://openairdocs.org/ntsb/OAK75DVA38), Dec 31, 1974: Hiller Acft UH-12C (N4785C), Kettlmn Cty, CA, destroyed
- [NTSB CHI74AC096](https://openairdocs.org/ntsb/CHI74AC096), Jun 2, 1974: Hiller Acft UH-12B (N6744C), Custar, OH, destroyed, 1 fatal
- [NTSB NYC74FFJ18](https://openairdocs.org/ntsb/NYC74FFJ18), Nov 6, 1973: Hiller Acft UH-12B (N33616), Dansville, NY, substantial damage
- [NTSB LAX74DUJ24](https://openairdocs.org/ntsb/LAX74DUJ24), Sep 28, 1973: Hiller Acft UH-12B (N7299), Tucson, AZ, substantial damage
- [NTSB FTW73DPJ20](https://openairdocs.org/ntsb/FTW73DPJ20), May 28, 1973: Hiller UH-12B (N6744C), Guymon, OK, substantial damage
- [NTSB FTW71FPD52](https://openairdocs.org/ntsb/FTW71FPD52), Apr 28, 1971: Hiller UH12B (N10195), Arlington, TX, destroyed
- [NTSB OAK71FVA53](https://openairdocs.org/ntsb/OAK71FVA53), Jan 17, 1971: Hiller UH12B (N5104V), Fresno, CA, substantial damage
- [NTSB MIA70FKJ09](https://openairdocs.org/ntsb/MIA70FKJ09), Feb 15, 1970: Hiller Acft UH-12A (N214W), Enterprise, AL, destroyed
- [NTSB OAK70D0122](https://openairdocs.org/ntsb/OAK70D0122), Sep 11, 1969: Hiller Acft UH-12B (N4785C), Watsonville, CA, substantial damage
- [NTSB CHI67A0087](https://openairdocs.org/ntsb/CHI67A0087), Jan 15, 1967: Hiller UH-12B (N5304V), Fairhaven, MI, destroyed
- [NTSB SEA66A0031](https://openairdocs.org/ntsb/SEA66A0031), Nov 11, 1965: Hiller UH-12B (N7212H), Federal Way, WA, substantial damage
- [NTSB FTW65A0128](https://openairdocs.org/ntsb/FTW65A0128), Jun 28, 1965: Hiller UH-12B (N5307V), Mer Rouge, LA, destroyed
- [NTSB OAK65A0068](https://openairdocs.org/ntsb/OAK65A0068), May 26, 1965: Hiller UH12B (N6417V), Porterville, CA, destroyed
- [NTSB FTW65A0109](https://openairdocs.org/ntsb/FTW65A0109), May 4, 1965: Hiller UH12B (N10195), Mcallen, TX, substantial damage
- [NTSB UNK65X1015](https://openairdocs.org/ntsb/UNK65X1015), Dec 14, 1964: Hiller UH-12B (N10195), Pharr, TX, substantial damage
- [NTSB UNK64X3955](https://openairdocs.org/ntsb/UNK64X3955), Sep 13, 1964: Hiller UH12B (N5311V), Ontario, CA, substantial damage
- [NTSB UNK64X2345](https://openairdocs.org/ntsb/UNK64X2345), Jun 17, 1964: Hiller UH12B (N4778C), Copley Tnshp, OH, destroyed

## FAA accident and incident reports (39)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20130206001079A](https://openairdocs.org/incident/20130206001079A), Feb 6, 2013: Hiller UH-12B (N5072R), Meritt Island, FL, Substantial damage. On 02/06/2013 the pilot of a Hiller UH-12B registration N5072R, was performing air tour rides for Florida biplanes,inc, at Merritt Island Airport (kcoi). The…
- [Accident 20120919023599A](https://openairdocs.org/incident/20120919023599A), Sep 19, 2012: Hiller UH-12B (N94735), Blum, TX, Substantial damage. On September 19 , 2012, at approximately 0955 CST, a Hiller UH-12B helicopter, N94735, experienced a loss of engine power while maneuvering at a low altitude…
- [Accident 20120604011459A](https://openairdocs.org/incident/20120604011459A), Jun 4, 2012: Hiller UH-12B (N93467), Pasco, WA, Substantial damage. Pilot was maneuvering while drying cherries at low altitude, experienced a low RPM condition and put aircraft down into field impacting cherry trees.
- [Accident 20050312010179A](https://openairdocs.org/incident/20050312010179A), Mar 12, 2005: Hiller UH12B (N5311V), Thermal, CA, Substantial damage. (-23) The pilot, flying his Hiller UH-12B helicopter, was performing touch and go takeoffs and landings at jacqueline cochran regional airport in Thermal,…
- [Accident 20040222031169A](https://openairdocs.org/incident/20040222031169A), Feb 22, 2004: Hiller UH12B (N5304V), Bradenton, FL, Substantial damage. (-23) On February 22, 2004, at 1140 EDT, a Hiller UH-12B, registered to danny bals, engine quit due to fuel depletion and auto rotated into panther park,…
- [Accident 20010224003379A](https://openairdocs.org/incident/20010224003379A), Feb 24, 2001: Hiller UH12B (N5307V), Whitesburg, GA, No damage. (-23) On final approach to the proposed landing site, N5307V, the Hiller UH-12B lost power and engine quit. Fuel starvation of the main boost pump did not…
- [Accident 20000317013279A](https://openairdocs.org/incident/20000317013279A), Mar 17, 2000: Hiller UH12B (N5304V), Orlando, FL, No damage. (-23)Pilot said extreme vibration caused him to lose control of his helicopter, resulting in hard landing. The heli hit t/r first then slid approx 100 ft. then…
- [Incident 19970705016759I](https://openairdocs.org/incident/19970705016759I), Jul 5, 1997: Hiller UH12B (N94525), Tres Pinos, CA, Minor damage. Walking away rotors winding down. Another chopper landing. Rotor was caused rotors to cone and strike tailboom.
- [Accident 19940507010289A](https://openairdocs.org/incident/19940507010289A), May 7, 1994: Hiller UH12B (N6417V), Crystal Beach, TX, Substantial damage. Lost power on climbout. Turned downwind then into wind. Lost rotor RPM. Impacted. Rolled. Water in fuel.
- [Accident 19940416007929A](https://openairdocs.org/incident/19940416007929A), Apr 16, 1994: Hiller UH12B (N41319), Alvin, TX, Substantial damage. Allowed rotor speed to decay on climbout. Landed hard. Rotors chopped tailboom. Skids damaged.
- [Incident 19920121004619I](https://openairdocs.org/incident/19920121004619I), Jan 21, 1992: Hiller UH12B (N94525), Dallas, TX, Minor damage. Pilot practicing autorotations. Aircraft seemed to sink more than previously. Tail rotor hit ground.
- [Accident 19910727030319A](https://openairdocs.org/incident/19910727030319A), Jul 27, 1991: Hiller UH12B (N62246), Westfield, MA, Substantial damage. Off course,landed for position. Departed minimum fuel and ran out of fuel. Landed in cemetery on a headstone.
- [Accident 19900426011809A](https://openairdocs.org/incident/19900426011809A), Apr 26, 1990: Hiller UH12B (N5306V), Sanford, FL, Substantial damage. Student lost control shortly after lift off,descended,hit ground and rolled over. Blamed engine. No defects found.
- [Accident 19871107067439A](https://openairdocs.org/incident/19871107067439A), Nov 7, 1987: Hiller UH12B (N922TE), Newnan, GA, Substantial damage. PIC lost tail rotor control on approach. Initiated autorotation but plane rolled over on impact. Gear box separated.
- [Accident 19861129069389A](https://openairdocs.org/incident/19861129069389A), Nov 29, 1986: Hiller UH12B (N48209), Capac, MI, Substantial damage. Severe vibration and loss of rotor RPM. Made emergency power on run landing. Rotor blade drag strut had failed.
- [Accident 19860608022059A](https://openairdocs.org/incident/19860608022059A), Jun 8, 1986: Hiller UH12B (N41319), Rathdrum, ID, Destroyed. Aircraft was damaged and occupants injured during a hard emergency landing. Engine failed from fuel exhaustion.
- [Accident 19860407012159A](https://openairdocs.org/incident/19860407012159A), Apr 7, 1986: Hiller UH12B (N5307V), Fall River, KS, Destroyed. Struck trees trying to land in a open field. Student allowed rotor RPM to decay and descended into trees.
- [Accident 19830708034559A](https://openairdocs.org/incident/19830708034559A), Jul 8, 1983: Hiller UH12B (N922TE), Huntsville, AL, Substantial damage. Helicopter crashed during autorotation after engine quit from fuel exhaustion.
- [Accident 19830623042019A](https://openairdocs.org/incident/19830623042019A), Jun 23, 1983: Hiller UH12B (N245C), Jerome, ID, Destroyed. Power loss returning to base. Made hard downwind autorotation landing. Engine fire consumed helicopter.
- [Accident 19820902043949A](https://openairdocs.org/incident/19820902043949A), Sep 2, 1982: Hiller UH12B (N48209), Detroit, MI, Substantial damage. Pilot lost control of helicopter attempting a crosswind landing in gusty wind. Tail rotor hit ground.
- [Accident 19811116073989A](https://openairdocs.org/incident/19811116073989A), Nov 16, 1981: Hiller UH12C (N6417V), Logan, UT, Substantial damage. Helicopter crashed after takeoff due to fuel exhaustion.
- [Accident 19810822050919A](https://openairdocs.org/incident/19810822050919A), Aug 22, 1981: Hiller UH12B (N94525), Las Vegas, NV, Substantial damage. Pilot misjudged landing. Made hard landing and tail boom failed.
- [Accident 19810227008909A](https://openairdocs.org/incident/19810227008909A), Feb 27, 1981: Hiller UH12B (N90803), Jamestown, NY, Substantial damage. Lost directional control & misused throttle during hover. Helicopter struck power pole.
- [Accident 19801225083009A](https://openairdocs.org/incident/19801225083009A), Dec 25, 1980: Hiller UH12B (N94731), Rialto, CA, Substantial damage. Engine quit, rolled over on emergency landing. Found fuel level low, below fuel line pickup.
- [Incident 19800805081339I](https://openairdocs.org/incident/19800805081339I), Aug 5, 1980: Hiller UH12B (N5306V), New Orleans, LA. After takeoff to hover, pilot experienced loss of directional control. Tail rotor gear box had failed.
- [Accident 19791106037789A](https://openairdocs.org/incident/19791106037789A), Nov 6, 1979: Hiller UH12B (N10195), Lumberton, NJ, Substantial damage. Tail rotor control cable broke. Rotor RPM decayed. Helicopter impacted ground in a turn. Rolled over.
- [Accident 19790801027449A](https://openairdocs.org/incident/19790801027449A), Aug 1, 1979: Hiller UH12B (N5310V), Dutch Harbor, AK, Substantial damage. Pilot said the clutch failed. No inspection of acft made by FAA. Pilot made hard landing.
- [Accident 19790225003659A](https://openairdocs.org/incident/19790225003659A), Feb 25, 1979: Hiller UH12C (N94731), Brentwood, CA, Substantial damage. Forced ldg due to engine failure. Inspection revealed heavy lead deposits on spak plugs.
- [Incident 19781002030849I](https://openairdocs.org/incident/19781002030849I), Oct 2, 1978: Hiller H23A (N5104V), Springfield, OR, Substantial damage. Pilot autorotated to safe landing after a rod failed and came through the case.
- [Incident 19780528040609I](https://openairdocs.org/incident/19780528040609I), May 28, 1978: Hiller UH12B (N29799), Dayton, OH, Minor damage. Engine became rough and lost power. Cause found to be lead fouling.
- [Accident 19770926030119A](https://openairdocs.org/incident/19770926030119A), Sep 26, 1977: Hiller UH12B (N94735), Carrollton, MI, Substantial damage. Wind gusting 20K.
- [Accident 19770115000349A](https://openairdocs.org/incident/19770115000349A), Jan 15, 1977: Hiller UH12B (N6417V), Terra Bella, CA, Substantial damage. Frost control. Rusty water,debris,tank sealer found in fuel. Service bulletin A-78 ncw.
- [Accident 19750903033409A](https://openairdocs.org/incident/19750903033409A), Sep 3, 1975: Hiller UH12C (N90424), Beaver Falls, PA, Substantial damage. Plt heard loud bang,atmtd quick stop,tail boom hit gnd.
- [Accident 19750407014029A](https://openairdocs.org/incident/19750407014029A), Apr 7, 1975: Hiller UH12B (N90424), Beaver Falls, PA, Substantial damage. During flight PIC stated that the engine developed carb ice. Heat applied engine quit,hard ldg.
- [Accident 19741231042329A](https://openairdocs.org/incident/19741231042329A), Dec 31, 1974: Hiller UH12C (N4785C), Kettlmn Cty, CA, Destroyed
- [Accident 19740602031629A](https://openairdocs.org/incident/19740602031629A), Jun 2, 1974: Hiller UH12B (N6744C), Custar, OH, Destroyed. Spray boom installation failed struck tail rotor
- [Accident 19731106041329A](https://openairdocs.org/incident/19731106041329A), Nov 6, 1973: Hiller UH12C (N33616), Dansville, NY, Destroyed. During FAA certification flt,tail rotor failed, PIC lost dir control. Acft abt 20FT AGL.
- [Accident 19730928031789A](https://openairdocs.org/incident/19730928031789A), Sep 28, 1973: Hiller UH12B (N7299), Tucson, AZ, Substantial damage. Lost oil press,hole in nr 1 piston. M/r blades struck tail boom drg ldg.
- [Accident 19730528012929A](https://openairdocs.org/incident/19730528012929A), May 28, 1973: Hiller UH12B (N6744C), Guymon, OK, Substantial damage. Aftr t/o to hover then trans lift eng pwr levr stuck. Eng overboost,plt cut ign. Linkage out of rig.

## Service difficulty reports (2)

As reported by operators and repair stations, by the model named in the report.

- [SDR 07280305](https://openairdocs.org/sdr/07280305), Jul 25, 2003: MAGNETO. OVERHEATED. THE OWNER/PILOT FOUND DURING GROUND OPERATION THAT THE RIGHT MAGNETO FAILED THE MAGNETO OPERATIONAL CHECK. THE MAGNETO WAS REPLACED AND TESTED NORMAL. TWO DAYS 
- [SDR 96ZZZX1341](https://openairdocs.org/sdr/96ZZZX1341), Feb 27, 1996: CAPACITOR. FAILED. WHEN RT MAG SELECTED DURING ENGINE RUN-UP CHECK, ENGINE FAILED. OBSERVED EXCESSIVE SPARKING AND POINT WEAR (7 HRS SINCE NEW). ENGINE RAN NORMALLY AFTER REPLACEM

## STCs that may be installed (OpenAirDocs) (32)

Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc
- [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SR00420NY](https://openairdocs.org/stc/SR00420NY): Installation of Airwolf remote mounted engine oil filter Model AFC-600. Airwolf Filter, Corp
- [STC SR02487AK](https://openairdocs.org/stc/SR02487AK): Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System. ADS-B Technologies, LLC
- [STC SR02470AK](https://openairdocs.org/stc/SR02470AK): Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System. ADS-B Technologies, LLC
- [STC SR02471AK](https://openairdocs.org/stc/SR02471AK): Installation of the L-3 Communications NGT -9000/9000R ADS-B System. ADS-B Technologies, LLC
- [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC
- [STC SH277WE](https://openairdocs.org/stc/SH277WE): Installation of UH-12C Upper Canopy. Heck Research LLC
- [STC SA00068SE](https://openairdocs.org/stc/SA00068SE): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1). Electronics International Inc
- [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc
- [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International
- [STC SA02520AT](https://openairdocs.org/stc/SA02520AT): Installation of M-20 Oil Separator, model 600-WP. M-20 Oil Separators LLC
- [STC SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing Inc
- [STC SA1626NM PAGE 1](https://openairdocs.org/stc/SA1626NM%20PAGE%201): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA2350NM PAGE 1](https://openairdocs.org/stc/SA2350NM%20PAGE%201): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International
- [STC SA3862NM PAGE 1](https://openairdocs.org/stc/SA3862NM%20PAGE%201): Installation of Electronics International Primary TIT/EGT/CHT instruments, remote switches and associated accessories. Electronics International
- [STC SA2190NM PAGE 1](https://openairdocs.org/stc/SA2190NM%20PAGE%201): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SH446EA](https://openairdocs.org/stc/SH446EA): Installation of Franklin engine Model 6V-350B in Fairchild Hiller UH-12A helicopter. Franklin Engine Co Inc. Lists UH-12 Series
- [STC SH82WE](https://openairdocs.org/stc/SH82WE): Installation of spray system and extended landing gear. Wayne Clevenger
- [STC SH83WE](https://openairdocs.org/stc/SH83WE): Installation of modified air induction system. Wayne Clevenger
- [STC SH80WE](https://openairdocs.org/stc/SH80WE): Installation of Simplex thirty-two foot spray boom. Simplex Manufacturing Co. Lists UH-12 Series
- [STC SH1-457](https://openairdocs.org/stc/SH1-457): Aircooler Motors 6VS-335B turbo-supercharged engine (derated). Carson Helicopters Inc. Lists UH-12 Series
- [STC SH160AL](https://openairdocs.org/stc/SH160AL): Airborne control survey system. US Dept of Interior. Lists UH-12 Series
- [STC SH4-178](https://openairdocs.org/stc/SH4-178): Curved control stick. Nystrom Aviation Inc. Lists UH-12 Series
- [STC SH52WE](https://openairdocs.org/stc/SH52WE): High volume fifty foot spray boom kit. Simplex Manufacturing Co. Lists UH-12 Series
- [STC SH77AL](https://openairdocs.org/stc/SH77AL): Tundra snow shoes. ERA Helicopters Inc. Lists UH-12 Series
- [STC SH9AL](https://openairdocs.org/stc/SH9AL): Airglas tundra pads L-100. Intl Helicopters. Lists UH-12 Series
- [STC SA2350NM](https://openairdocs.org/stc/SA2350NM) (historical): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. Electronics International

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Hansen Christopher H UH-12-B](https://openairdocs.org/model/hansen-christopher-h-uh-12-b): 1 registered aircraft, registry code 13015AA
- [Hiller-Helicopter Rep SVC UH-12B](https://openairdocs.org/model/hiller-helicopter-rep-svc-uh-12b): 1 registered aircraft, registry code 4360704
- [Hiller-Tri-Plex Ind.Inc. UH-12B](https://openairdocs.org/model/hiller-tri-plex-ind-inc-uh-12b): 1 registered aircraft, registry code 4360801
- [Hiller-Heli-Cab UH-12B](https://openairdocs.org/model/hiller-heli-cab-uh-12b): 1 registered aircraft, registry code 4361001
- [Hiller/Hansen UH-12B](https://openairdocs.org/model/hiller-hansen-uh-12b): 0 registered aircraft, registry code 4360133
- [Hiller-Clarcq UH-12B](https://openairdocs.org/model/hiller-clarcq-uh-12b): 0 registered aircraft, registry code 4360701
- [Hiller-Mitchell UH-12B](https://openairdocs.org/model/hiller-mitchell-uh-12b): 0 registered aircraft, registry code 4360702
- [Rogerson Hiller UH-12B](https://openairdocs.org/model/rogerson-hiller-uh-12b): 0 registered aircraft, registry code 4364001

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