# N133: 1966 Bell UH-1H

- Status: Valid registration
- Airframe: [Bell UH-1H](https://openairdocs.org/model/bell-uh-1h) (registry code 1181407, 15 seats)
- Engine: [Lycoming T-53 series](https://openairdocs.org/engine/lycoming-t-53-series) (registry code 41552)
- Serial number: 65-09847
- Year built: 1966
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Restricted, carriage of cargo, forest, agriculture and pest control, other
- Airworthiness date: February 11, 1997
- Certificate issued: December 11, 2014
- Expires: December 31, 2027
- Mode S code: A08655
- Registered owner: [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC)
- Location: [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola)
- Owner type: Corporation
- Owner's area on the map: 30.3919° N, 87.3720° W: Placed by OpenAirDocs at the center of ZIP code 32506, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=133
- Page: https://openairdocs.org/aircraft/N133

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Lycoming T-53 model are included.

## ADs that may apply (OpenAirDocs): 43 in force

### Matched by airframe (Bell UH-1H)

- [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 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 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

### Matched by engine (Lycoming T-53 series)

- [AD 2022-10-02](https://openairdocs.org/ad/2022-10-02): Engine Controls · Honeywell International T53-L-703, T53-L-13B S/SB, T53-L-13B S/SA and 14 more. Effective Jun 28, 2022
- [AD 2009-15-13](https://openairdocs.org/ad/2009-15-13): Combustion chamber housings (CCHs) · Honeywell International T5313B, T5317A, T5317A-1 and 2 more. Effective Aug 25, 2009
- [AD 2006-11-16](https://openairdocs.org/ad/2006-11-16): Fuel control regulator assemblies · Honeywell International T53-L-703, T53-L-13B/D, T53-L-13B and 8 more. Effective Jul 5, 2006
- [AD 2006-01-05](https://openairdocs.org/ad/2006-01-05): Turboshaft engine · Honeywell International T53-L-703, T53-L-13B/D, T53-L-13B S/SB and 12 more. Effective Feb 16, 2006
- [AD 2002-15-04](https://openairdocs.org/ad/2002-15-04): Compressor impellers · Honeywell International T53-L-703, T53-L-13B/D, T53-L-13B and 4 more. Effective Sep 10, 2002
- [AD 2002-09-09](https://openairdocs.org/ad/2002-09-09): Centrifugal Compressor Impeller · Honeywell International T53-L-703, T53-L-13B/D, T53-L-13B and 10 more. Effective Jun 13, 2002
- [AD 97-21-07 R1](https://openairdocs.org/ad/97-21-07-R1): Accessory Drive Carrier Assembly · Honeywell International T53-L-703, T5313B, T5317A and 1 more. Effective Jul 6, 1998
- [AD 97-07-05](https://openairdocs.org/ad/97-07-05): Accessory Drive Assembly · Honeywell International T53-L-703, T5311A, T5311B and 4 more. Effective Jun 24, 1997
- [AD 96-17-01](https://openairdocs.org/ad/96-17-01): Suspect second stage power turbine disks · Honeywell International T5313B. Effective Sep 9, 1996
- [AD 95-10-04](https://openairdocs.org/ad/95-10-04): Centrifugal Compressor Impeller · Honeywell International T5313B, T5317A, T5317A-1 and 1 more. Effective May 25, 1995
- [AD 77-17-08](https://openairdocs.org/ad/77-17-08): Fuel Regulator P1 Multiplier Lever · Honeywell International T53-L-703, T5307A, T5309A and 7 more. Effective Mar 30, 1978
- [AD 75-22-02](https://openairdocs.org/ad/75-22-02): Secondary Failure N2 Accessory Drive Shaft · Honeywell International T5307A, T5309A, T5309B and 6 more. Effective Oct 29, 1975
- [AD 75-12-12](https://openairdocs.org/ad/75-12-12): Second Stage Gas Producer Cylinder Retaining Bolt · Honeywell International T5313A and T5313B. Effective Jun 18, 1975
- [AD 75-01-05](https://openairdocs.org/ad/75-01-05): Compressor Impeller Assembly Vane · Honeywell International T5313B. Effective Jan 17, 1975
- [AD 74-22-07](https://openairdocs.org/ad/74-22-07): Compressor Rotor Disks · Honeywell International T5313A. Effective Oct 31, 1974
- [AD 74-09-03](https://openairdocs.org/ad/74-09-03): Compressor Rotor Discs · Honeywell International T5309C, T5311A and T5311B. Effective May 2, 1974
- [AD 71-08-06](https://openairdocs.org/ad/71-08-06): Overspeed Pickup Housing Assembly · Honeywell International T5313A and T5313B. Effective Apr 16, 1971

### 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 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
- [AD 2002-03-01](https://openairdocs.org/ad/2002-03-01) (historical): Reduction Gearbox Assembly · Honeywell International T5311A, T5311B, T5313B and 2 more. Effective Mar 21, 2002
- [AD 98-22-11](https://openairdocs.org/ad/98-22-11) (historical): Fuel Pumps · Honeywell International T5317A-1. Effective Dec 18, 1998
- [AD 87-12-05](https://openairdocs.org/ad/87-12-05) (historical): Gas Producer Turbine and Power Turbine Disks · Honeywell International T5313B. Effective Jul 20, 1987

## Information bulletins (advisory) (2 in force)

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

## NTSB investigations

None matched to N133.

## FAA accident and incident reports

None matched to N133.

## Reports on N133 not matched to an aircraft (1)

They name N133, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 19781127025939I](https://openairdocs.org/incident/19781127025939I), Nov 27, 1978: Boeing 727 (N133), New Orleans, LA. Unscheduled landing due to vibration. Part of rotor blade injested.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## Service difficulty reports on N133 not matched to an aircraft (1)

They name N133, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR 95FDEA01530](https://openairdocs.org/sdr/95FDEA01530), Oct 10, 1995: FRAME. CRACKED. AFT CARGO FLOOR CRACK IN FRAME AROUND TOOLING HOLE STA 1090 JUST ABOVE STR 27L. BELT FRAME REPAIR ACCOMPLISHED PER SRM 51-40-3 AND DOUBLER INSTALLED.

## STCs that may be installed (OpenAirDocs) (4)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the engine (Lycoming T-53 series)

- [STC SE00585AT](https://openairdocs.org/stc/SE00585AT): Installation of Aeronautical Accessories, Inc. PC Safety Valve Kit. Bell Helicopter Textron Inc. Lists T5313B
- [STC SE00028EN](https://openairdocs.org/stc/SE00028EN): Installation of Pratt & Whitney Engine Services Inc. SmartCycle Plus Engine Monitoring System, P/N EMU-K-010-1 on specified T53 engine models. Pratt & Whitney Engine Services Inc. Lists T5309A
- [STC SE00029EN](https://openairdocs.org/stc/SE00029EN): Installation of Pratt & Whitney Engine Services Inc. SmartCycle Plus Engine Monitoring System, P/N EMU-K-010-1 on specific T53 engine models. Pratt & Whitney Engine Services Inc. Lists T5313B
- [STC SE01440NY](https://openairdocs.org/stc/SE01440NY): Conversion of Honeywell engine model T5313B to Honeywell engine model T5317A utilizing Aero Design, Ltd. conversion instructions C1437.02 dtd 4/30/01. Dart Aerospace Limited. Lists T5313B

## Earlier aircraft with N133

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N133 before.

- [Cancelled 1992-07-31](https://openairdocs.org/deregistered/N133-1992-07-31): Hoffmeyer Robert W MONI STANDARD, S/N 00133. Owner: [Hoffmeyer Robert E](https://openairdocs.org/faa-owner/HOFFMEYER%20ROBERT%20E), [Palm Harbor, FL](https://openairdocs.org/faa-place/FL/Palm%20Harbor)
- [Cancelled 1976-05-13](https://openairdocs.org/deregistered/N133-1976-05-13): Watts GRUDIEAIRE G-20, S/N 1, built 1972. Owner: [Watts Nathan G](https://openairdocs.org/faa-owner/WATTS%20NATHAN%20G), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City)
- [Cancelled 1962-01-29](https://openairdocs.org/deregistered/N133-1962-01-29): Beech C-45H, S/N AF-848. Owner: [Federal Aviation Agency](https://openairdocs.org/faa-owner/FEDERAL%20AVIATION%20AGENCY)
- [Cancelled 1946-11-07](https://openairdocs.org/deregistered/N133-1946-11-07): Beech D17S, S/N 415, built 1940. Owner: [United States Government](https://openairdocs.org/faa-owner/UNITED%20STATES%20GOVERNMENT), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- [Cancelled 1942-12-07](https://openairdocs.org/deregistered/N133-1942-12-07): Cessna T-50, S/N 1016, built 1941. Owner: [Civil Aeronautics Administration](https://openairdocs.org/faa-owner/CIVIL%20AERONAUTICS%20ADMINISTRATION), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- [Cancelled 1935-04-01](https://openairdocs.org/deregistered/N133-1935-04-01): Standard J-1, S/N 200SUB. Owner: [Arterburn James H](https://openairdocs.org/faa-owner/ARTERBURN%20JAMES%20H), [Independence, MO](https://openairdocs.org/faa-place/MO/Independence)

## Related

- Other Bell UH-1H aircraft: https://openairdocs.org/model/bell-uh-1h/aircraft.md
- The Lycoming T-53 series engine: https://openairdocs.org/engine/lycoming-t-53-series.md

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