# Wilco UH-1B

- Type: Aircraft model (FAA registry)
- Registry code: 9680102
- Manufacturer (registry): WILCO AVIATION
- Model: UH-1B
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Turbo-shaft
- Seats: 9
- Weight class: Up to 12,499 lb
- Certification: Type certificated
- Data sheet: [TCDS H3SO](https://openairdocs.org/tcds/H3SO) (OpenAirDocs)
- Holder: Richards Heavylift Helo Inc.
- Registered aircraft: 0
- Page: https://openairdocs.org/model/wilco-uh-1b

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 2024-19-17](https://openairdocs.org/ad/2024-19-17): Rotorcraft flight control · Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N… (STC SR03408CH). Effective Oct 11, 2024
- [AD 2022-20-14](https://openairdocs.org/ad/2022-20-14): Main Rotor Gearbox · Bell Textron 204B, 205A, 205A-1 and 20 more. Effective Dec 27, 2022
- [AD 2022-22-12](https://openairdocs.org/ad/2022-22-12): Nose/Tail Landing Gear Structure/Axle · Replacement crosstubes P/N D212-664 (Dart Aerospace STC SR01298NY). Effective Nov 22, 2022
- [AD 2022-21-11](https://openairdocs.org/ad/2022-21-11): Main rotor blades · Bell Textron 204B, 205A, 205A-1 and 11 more. Effective Nov 16, 2022
- [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022
- [AD 2022-06-05](https://openairdocs.org/ad/2022-06-05): Main Rotor System · WSH HH-1K, TH-1F, TH-1L and 11 more. Effective Mar 16, 2022
- [AD 2021-15-14](https://openairdocs.org/ad/2021-15-14): Rotorcraft Tail Boom · California Department of Forestry UH-1H, UH-1F, TH-1L and 39 more. Effective Aug 30, 2021
- [AD 2018-02-07](https://openairdocs.org/ad/2018-02-07): Main Rotor Blades · California Department of Forestry UH-1H, UH-1F, UH-1F and 24 more. Effective Feb 1, 2018
- [AD 2016-23-09](https://openairdocs.org/ad/2016-23-09): Main Rotor Blades · California Department of Forestry UH-1H, UH-1F, UH-1F and 24 more. Effective Dec 27, 2016
- [AD 2014-03-10](https://openairdocs.org/ad/2014-03-10): Tail Rotor Control System · JJASPP Engineering Services UH-1H, UH-1F, TH-1L and 35 more. Effective Mar 26, 2014
- [AD 2013-13-06](https://openairdocs.org/ad/2013-13-06): Main rotor head · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 10, 2013
- [AD 2013-13-14](https://openairdocs.org/ad/2013-13-14): Main Rotor Head · JJASPP Engineering Services UH-1H, UH-1F, TH-1L and 33 more. Effective Jul 24, 2013
- [AD 2012-17-10](https://openairdocs.org/ad/2012-17-10): Main Rotor Blades · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 28, 2012
- [AD 2012-14-12](https://openairdocs.org/ad/2012-14-12): Tail Rotor Blades · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 4, 2012
- [AD 2010-14-12](https://openairdocs.org/ad/2010-14-12): Landing Gear System · Overseas Aircraft Support UH-1H, UH-1F, UH-1H and 40 more. Effective Jul 23, 2010
- [AD 2006-19-05](https://openairdocs.org/ad/2006-19-05): Tail rotor (T/R) slider · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Oct 16, 2006
- [AD 2002-20-01](https://openairdocs.org/ad/2002-20-01): TT strap · Overseas Aircraft Support UH-1H, UH-1F, TH-1L and 34 more. Effective Nov 6, 2002
- [AD 2002-13-51](https://openairdocs.org/ad/2002-13-51): Tail Rotor (T/R) Grip · Overseas Aircraft Support UH-1H, UH-1F, TH-1L and 34 more. Effective Aug 19, 2002
- [AD 2002-01-31](https://openairdocs.org/ad/2002-01-31): Retirement Index Number (RIN) for Masts · Overseas Aircraft Support UH-1H, UH-1F, TH-1L and 36 more. Effective Mar 8, 2002
- [AD 2000-15-21 R1](https://openairdocs.org/ad/2000-15-21-R1): Main Rotor Mast Assemblies · Overseas Aircraft Support UH-1H, UH-1F, TH-1L and 33 more. Effective Nov 22, 2000
- [AD 99-25-12](https://openairdocs.org/ad/99-25-12): Tailboom Vertical Fin Spar · California Department of Forestry UH-1H, UH-1F, TH-1L and 31 more. Effective Jan 11, 2000
- [AD 99-07-15](https://openairdocs.org/ad/99-07-15): Tail Rotor Yoke · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 33 more. Effective May 3, 1999
- [AD 97-01-06](https://openairdocs.org/ad/97-01-06): Tail Rotor Slider · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 32 more. Effective Feb 13, 1997
- [AD 96-12-26](https://openairdocs.org/ad/96-12-26): Clean and Inspect Tail Rotor Blade · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 23, 1996
- [AD 95-10-08](https://openairdocs.org/ad/95-10-08): Tail Rotor Control System · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 34 more. Effective May 26, 1995
- [AD 94-22-09](https://openairdocs.org/ad/94-22-09): Tail Rotor Driveshaft · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 34 more. Effective Nov 22, 1994
- [AD 92-23-01](https://openairdocs.org/ad/92-23-01): Main Rotor Pillow Blocks · Bell Helicopter Textron 204B, 205A, 205A-1 and 10 more. Effective Apr 23, 1993
- [AD 90-03-10](https://openairdocs.org/ad/90-03-10): Tail Rotor Grips · Arrow Falcon Exporters UH-1H, UH-1F, 204B and 33 more. Effective Oct 18, 1991
- [AD 90-10-05](https://openairdocs.org/ad/90-10-05): Tail Rotor Gearbox · Bell Helicopter Textron TH-1L, UH-1E, UH-1L and 17 more. Effective Jun 5, 1990
- [AD 89-08-06](https://openairdocs.org/ad/89-08-06): Transmission Internal Sump Oil Filter · AST UH-1F, TH-1L, UH-1E and 22 more. Effective Feb 7, 1990
- [AD 88-25-05](https://openairdocs.org/ad/88-25-05): Tail Rotor Grip Assembly · AST UH-1F, 204B, 205A and 25 more. Effective Dec 13, 1988
- [AD 86-07-07](https://openairdocs.org/ad/86-07-07): Universal Assembly - Main Rotor · Rotorcraft Development UH-1B, UH-1B, UH-1B and 1 more. Effective Apr 25, 1986
- [AD 84-18-03 R1](https://openairdocs.org/ad/84-18-03-R1): Clevis Inspection · California Department of Forestry UH-1F, UH-1B, UH-1A and 6 more. Effective Feb 22, 1985
- [AD 83-20-01](https://openairdocs.org/ad/83-20-01): Tail Rotor Hub Assembly · Rotorcraft Development UH-1B, UH-1B and UH-1B. Effective Nov 1, 1983
- [AD 83-03-03](https://openairdocs.org/ad/83-03-03): Tail Boom and Fin · California Department of Forestry UH-1F, UH-1A, UH-1B and 5 more. Effective Mar 14, 1983

Historical (superseded or no longer in force):

- [AD 2021-15-52](https://openairdocs.org/ad/2021-15-52) (historical): Main Rotor System · Arrow Falcon Exporters UH-1H, UH-1F, TH-1L and 39 more. Effective Aug 13, 2021
- [AD 2000-22-51](https://openairdocs.org/ad/2000-22-51) (historical): Main Rotor Mast or Trunnion · Arrow Falcon Exporters UH-1H, UH-1F, HH-1K and 33 more. Effective Dec 26, 2000
- [AD 2000-08-53](https://openairdocs.org/ad/2000-08-53) (historical): Main Rotor System · AST UH-1F, HH-1K, TH-1F and 32 more
- [AD 97-20-09](https://openairdocs.org/ad/97-20-09) (historical): Vertical fin spar · Arrow Falcon Exporters UH-1H, UH-1F, UH-1F and 33 more. Effective May 28, 1998
- [AD 97-20-09 PL](https://openairdocs.org/ad/97-20-09-PL) (historical): Tailboom Vertical Fin Spar · California Department of Forestry UH-1F, UH-1F, TH-1F and 31 more
- [AD 89-17-03](https://openairdocs.org/ad/89-17-03) (historical): Main Rotor Masts · California Department of Forestry UH-1F, TH-1L, UH-1B and 18 more. Effective Sep 5, 1989
- [AD 80-17-09](https://openairdocs.org/ad/80-17-09) (historical): Main Rotor Straps · Bell Helicopter Textron 204B, 205A-1, 212 and 16 more. Effective Sep 15, 1980

## Information bulletins (advisory) (3)

- [SAIB SW-18-29R1](https://openairdocs.org/saib/SW-18-29R1): Rotorcraft Tail Boom, Attach Structure Failure. Issued Feb 19, 2019
- [SAIB SW-18-29](https://openairdocs.org/saib/SW-18-29) (historical): Rotorcraft Tail Boom, Attach Structure Failure. Issued Oct 1, 2018
- [SAIB SW-12-38](https://openairdocs.org/saib/SW-12-38): Emergency Push Out  Window Retention. Issued Jul 30, 2012

## Registered aircraft

None registered with this model now.

## NTSB investigations

None matched to aircraft with this model.

## FAA accident and incident reports

None matched to aircraft with this model.

## Service difficulty reports (20)

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

- [SDR UPX2009F00004](https://openairdocs.org/sdr/UPX2009F00004), May 31, 2009: CONTROL SERVO. LEAKING. ON STARTUP FOR A FLIGHT, MECHANIC NOTICED LARGE PUDDLE OF HYD FLUID UNDER FUSELAGE. CLOSER INSPECTION REVEALED THE LT CYCLIC SERVO WAS LEAKING A LARGE AMOUNT OF
- [SDR UPX2009F00003](https://openairdocs.org/sdr/UPX2009F00003), May 31, 2009: SADDLE. CRACKED. ON DAILY INSPECTION, FOUND LT FWD OTBD LANDING GEAR SADDLE CRACKED LONGITUDINALLY AT FILLET AREA. REPLACED SADDLE AND RETURNED TO SERVICE. (K)
- [SDR H5O2008F00000](https://openairdocs.org/sdr/H5O2008F00000), Dec 5, 2007: LINER. WORN. PILOT EXPERIENCED COLLECTIVE BOUNCE ON TAKEOFF. INSPECTION OF COLLECTIVE LINERS SHOWED SUFFICIENT AMOUNT OF LINER REMAINING IN THE WEAR AREA. WITH FURTHER INSPE
- [SDR 2008FA0000031](https://openairdocs.org/sdr/2008FA0000031), Dec 5, 2007: LINER. WORN. PILOT EXPERIENCED COLLECTIVE BOUNCE ON TAKEOFF. INSPECTION OF COLLECTIVE LINERS SHOWED A SUFFICIENT AMOUNT OF LINER REMAINING IN THE WEAR AREA. WITH FURTHER INS
- [SDR H9X2007F00000](https://openairdocs.org/sdr/H9X2007F00000), Dec 1, 2007: HOUSING. DAMAGED. AIRCRAFT WAS RETURNING HOME FROM FLIGHT AND PILOT NOTICED THE PEDALS WERE NOT OPERATING NORMALLY. HE THEN BEGAN CIRCLING THE AIRPORT UNTIL WE DETERMINED THAT TH
- [SDR AU000186](https://openairdocs.org/sdr/AU000186), Jan 25, 2000: BLADE. FAILED. (AUS) THIRD STAGE COMPRESSOR DISC AND BLADES DESTROYED. DOWNSTREAM COMPRESSOR DAMAGE. NO DAMAGE TO THE FIRST TWO STAGES.
- [SDR 98ZZZX2792](https://openairdocs.org/sdr/98ZZZX2792), Jun 29, 1998: REGULATOR. FAILED. VOLTAGE REGULATOR WILL NOT HOLD VOLTAGE. REMOVED FROM AIRCRAFT AND SENT TO REPAIR.
- [SDR 97ZZZX2776](https://openairdocs.org/sdr/97ZZZX2776), May 27, 1997: FIN SPAR. CRACKED. DURING ROUTINE VISUAL INSPECTION WHILE REFUELING, CRACK IN TAILBOOM SPAR CAP WAS DETECTED. MECHANIC STATED NO CRACK WAS NOTED DURING PRE-FLIGHT INDICATING IT FO
- [SDR 97ZZZX1991](https://openairdocs.org/sdr/97ZZZX1991), Mar 13, 1997: GRIP. DEFECTIVE. BUSHING FOR PITCH LINK DOES NOT PROTRUDE FLUSH ON BACK SIDE OF GRIP EAR. THEREFORE, SINGLE STEEL WASHER UNDER NUT OF PC LINK BOLT SITS OVER RECESS AND CAN 'DISH
- [SDR 97ZZZX1939](https://openairdocs.org/sdr/97ZZZX1939), Mar 13, 1997: BEARING. SPALLED. SPALLING ON BALLS AND OUTER RACE OF BEARING. THIS BEARING IS USED IN SEVERAL DIFFERENT APPLICATIONS IN THE DRIVE TRAIN OF BELL HELICOPTERS.
- [SDR GJQR0000098](https://openairdocs.org/sdr/GJQR0000098), Oct 22, 1996: BLADE. DEBONDED. C/W ASB 204-96-48 DUE TO POSSIBILITY OF DEBONDING OF THE MAIN SPAR LEADING EDGE DOUBLER. SEE AD 96-12-26. REPLACED WITH NEW BLADES FROM CSF STOCK. (X)
- [SDR GJQR0000097](https://openairdocs.org/sdr/GJQR0000097), Oct 22, 1996: BLADE. DEBONDED. C/W ASB 204-96-48 DUE TO POSSIBILITY OF DEBONDING OF THE MAIN SPAR LEADING EDGE DOUBLER. SEE AD 96-12-26. REPLACED WITH NEW BLADES FROM CSF STOCK. (X)
- [SDR UNKN0000096](https://openairdocs.org/sdr/UNKN0000096), Oct 17, 1996: BLADE. CORRODED. PART IS CORRODED. 4TH SET FROM BHT - REORDERED 5TH SET FROM BHT.
- [SDR UNKN0000095](https://openairdocs.org/sdr/UNKN0000095), Oct 17, 1996: BLADE. CORRODED. PART IS CORRODED. 4TH SET FROM BHT - REORDERED 5TH SET FROM BHT.
- [SDR UNKN0000094](https://openairdocs.org/sdr/UNKN0000094), Oct 16, 1996: BLADE. CORRODED. PART IS CORRODED. 3RD SET FROM BHT - REORDERED 4TH SET FROM BHT. (X)
- [SDR UNKN0000093](https://openairdocs.org/sdr/UNKN0000093), Oct 16, 1996: BLADE. CORRODED. PART IS CORRODED. 3RD SET FROM BHT - REORDERED 4TH SET FROM BHT.
- [SDR UNKN0000092](https://openairdocs.org/sdr/UNKN0000092), Oct 10, 1996: BLADE. CORRODED. PART IS CORRODED. 2ND SET FROM BHT - REORDERED 3RD SET FROM BHT. (X)
- [SDR UNKN0000091](https://openairdocs.org/sdr/UNKN0000091), Oct 10, 1996: BLADE. CORRODED. PART IS CORRODED. 2ND SET RECEIVED FORM BHT - REORDERED 3RD SET FROM BHT. (X)
- [SDR UNKN0000090](https://openairdocs.org/sdr/UNKN0000090), Oct 10, 1996: BLADE. CORRODED. PART IS CORRODED. RECEIVED FROM BHT AS IS - REORDERED 2ND SET FROM BHT. (X)
- [SDR UNKN0000089](https://openairdocs.org/sdr/UNKN0000089), Oct 10, 1996: BLADE. CORRODED. PART IS CORRODED. REPLACED WITH BLADE FROM BHT. (X)

## STCs that may be installed (OpenAirDocs) (30)

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 SR12332SE](https://openairdocs.org/stc/SR12332SE): Installation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook System. Mechanical Specialties, LLC
- [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 SH3744NM](https://openairdocs.org/stc/SH3744NM): Dual Battery Installation. WSH, LLC
- [STC SR00026DE](https://openairdocs.org/stc/SR00026DE): Installation of tailboom 24 inch plug extension, commercial style main rotor blades, and rotorhead. Midwest Aerospace TC LLC
- [STC SR00073DE](https://openairdocs.org/stc/SR00073DE): Replacement of Lycoming T53-L-13 series powerplant. Midwest Aerospace TC LLC
- [STC SR00119DE](https://openairdocs.org/stc/SR00119DE): Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control Cables. Midwest Aerospace TC LLC
- [STC SR09177RC](https://openairdocs.org/stc/SR09177RC): Modification of the vertical fin spar. Midwest Aerospace TC LLC
- [STC SR09224RC](https://openairdocs.org/stc/SR09224RC): Modification of the lift beam on the Model UH-1H. Midwest Aerospace TC LLC
- [STC SR02761LA](https://openairdocs.org/stc/SR02761LA): Installation of UH-1H composite main rotor blades on the UH-1B helicopters. Northern X-Treme Helicopters
- [STC SH5690NM](https://openairdocs.org/stc/SH5690NM): Installation of Advanced Technology Aircraft Co. engine barrier filter. WSH, LLC
- [STC SR02492LA](https://openairdocs.org/stc/SR02492LA): Installation of a Helicopter Technology Company main rotor blade assembly. Helicopter Technology Co
- [STC SR01039SE](https://openairdocs.org/stc/SR01039SE): Fabrication of tail boom mounted strakes in accordance with Master Drawing List Number BL-UH1H-01, Revision D, dated September 10, 2001, or later Federal Aviation Administration (FAA)-approved revision; and installation of this strake system. BLR Aerospace LLC
- [STC SR03408CH](https://openairdocs.org/stc/SR03408CH): Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103. Airwolf Aerospace LLC
- [STC SR02413LA](https://openairdocs.org/stc/SR02413LA): Installation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000. AKV Inc
- [STC ST04270AT](https://openairdocs.org/stc/ST04270AT): Install the VTOL ASSALT V3 Windscreen Laminate Kit. VTOL LLC
- [STC SR00767SE](https://openairdocs.org/stc/SR00767SE): Fabrication of Helipro spar replacement system. Vector Aerospace Helicopter Services USA Inc
- [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 SR01742NY](https://openairdocs.org/stc/SR01742NY): Installation of extended height landing gear. Dart Aerospace Limited
- [STC SR02051LA](https://openairdocs.org/stc/SR02051LA): Installation of a VAn Horn Aviation Tail Rotor Blade. Van Horn Aviation LLC
- [STC SR09313RC](https://openairdocs.org/stc/SR09313RC): Fabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-802, Revision B, dated April 5, 2001, or later FAA approved revision. Global Spar LLC
- [STC SR09316RC](https://openairdocs.org/stc/SR09316RC): Fabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-801, Revision B, dated April 5, 2001, or later FAA approved revision. Global Spar LLC
- [STC SR01497AT](https://openairdocs.org/stc/SR01497AT): Manufacture of Windows in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97115, no revision, dated August 20, 1997, or later FAA approved revisions, and installation per Installation Instructions listed in that report. Bell Helicopter Textron Inc
- [STC SR01812AT](https://openairdocs.org/stc/SR01812AT): Manufacture of Flitestep in accordance with Aeronautical Accessories, Inc. Drawing List Report No. AA-97166, no revision, dated December 19, 1997, or later FAA approved revisions, and installation per Aeronautical Accessories, Inc. Report AA-97087, Revision B, dated December 18, 1997, or later FAA approved revisions. Bell Helicopter Textron Inc
- [STC SR01922AT](https://openairdocs.org/stc/SR01922AT): Manufacture of Locking Door Handle. Bell Helicopter Textron Inc
- [STC SR01923AT](https://openairdocs.org/stc/SR01923AT): Manufacture of Air Deflector. Bell Helicopter Textron Inc
- [STC SR01298NY](https://openairdocs.org/stc/SR01298NY): Installation of replacement crosstubes P/N D212-664. Dart Aerospace Limited
- [STC SR00563NY](https://openairdocs.org/stc/SR00563NY): Installation of Skidtubes and associated saddles. Dart Aerospace Limited
- [STC SH201WE](https://openairdocs.org/stc/SH201WE): Installation of stirrup assemblies to directional control pedals for operation by handicapped pilot. (US ARMY OH-13E 205A). Dallwig Barry C
- [STC SR01218AT](https://openairdocs.org/stc/SR01218AT): Manufacture of Flitestep. Aeronautical Accessories, Inc
- [STC SH2621SO](https://openairdocs.org/stc/SH2621SO): Modification of main rotor blades P/N 204-011-250-5 or P/N 204-011-250-113 for restricted category. Hill Mr. Jamie R

## The same model under other registry codes

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

- [Bell UH-1B](https://openairdocs.org/model/bell-uh-1b): 42 registered aircraft, registry code 1181410
- [Garlick Helicopters UH-1B](https://openairdocs.org/model/garlick-helicopters-uh-1b): 3 registered aircraft, registry code 3740001
- [Hawkins & Powers UH-1B](https://openairdocs.org/model/hawkins-powers-uh-1b): 2 registered aircraft, registry code 1280001
- [Bell-Colonial UH-1B](https://openairdocs.org/model/bell-colonial-uh-1b): 1 registered aircraft, registry code 118141A
- [Bell-Sw Florida Avn UH-1B](https://openairdocs.org/model/bell-sw-florida-avn-uh-1b): 1 registered aircraft, registry code 118141B
- [Williams Helicopter UH-1B](https://openairdocs.org/model/williams-helicopter-uh-1b): 1 registered aircraft, registry code 9790871
- [Bell / Colony Services UH-1B](https://openairdocs.org/model/bell-colony-services-uh-1b): 0 registered aircraft, registry code 118141D
- [Richards Heavylift Helo UH-1B](https://openairdocs.org/model/richards-heavylift-helo-uh-1b): 0 registered aircraft, registry code 118141G
- [S M & T UH-1B](https://openairdocs.org/model/s-m-t-uh-1b): 0 registered aircraft, registry code 7700000

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