# N581FH: Fairchild Hiller FH-1100 - Status: Sale reported - Airframe: [Fairchild Hiller FH-1100](https://openairdocs.org/model/fairchild-hiller-fh-1100) (registry code 3376502, 4 seats) - Engine: [Allison 250 SER 250HP](https://openairdocs.org/engine/allison-250-ser-250hp) (registry code 03002) - Data sheets: [TCDS H2WE](https://openairdocs.org/tcds/H2WE) (Air Space Design and Manufacturing LLC) (OpenAirDocs) - Serial number: 81 - Type: Rotorcraft - Engine type: Turbo-shaft - Airworthiness: Standard, normal - Airworthiness date: December 9, 1967 - Mode S code: A77A24 - Location: [Crown Point, IN](https://openairdocs.org/faa-place/IN/Crown%20Point) - Owner type: Individual - Owner's area on the map: 41.4019° N, 87.3254° W: Placed by OpenAirDocs at the center of ZIP code 46307, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=581FH - Page: https://openairdocs.org/aircraft/N581FH 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. ## ADs that may apply (OpenAirDocs): 15 in force ### Matched by airframe (Fairchild Hiller FH-1100) - [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 81-10-02](https://openairdocs.org/ad/81-10-02): Support Column · FH1100 Manufacturing FH-1100. Effective May 11, 1981 - [AD 79-11-04](https://openairdocs.org/ad/79-11-04): Lower Housing Transmissions · FH1100 Manufacturing 1100 and FH-1100. Effective Jun 4, 1979 - [AD 77-07-08](https://openairdocs.org/ad/77-07-08): Tail Rotor Tension Torsion Bars · FH1100 Manufacturing 1100 and FH-1100. Effective Aug 5, 1977 - [AD 75-03-04](https://openairdocs.org/ad/75-03-04): Tail Fin Spar · FH1100 Manufacturing 1100 and FH-1100. Effective Jul 8, 1975 - [AD 71-22-03](https://openairdocs.org/ad/71-22-03): Tail Rotor Bearing Block · FH1100 Manufacturing FH-1100. Effective May 20, 1975 - [AD 72-13-07](https://openairdocs.org/ad/72-13-07): Drive Shaft Assemblies · FH1100 Manufacturing 1100 and FH-1100. Effective Jun 27, 1972 - [AD 71-24-08](https://openairdocs.org/ad/71-24-08): Landing Gear Torque Tube · FH1100 Manufacturing FH-1100. Effective Nov 30, 1971 - [AD 71-24-06](https://openairdocs.org/ad/71-24-06): Attach Lug Engine Mount Strut · FH1100 Manufacturing FH-1100. Effective Nov 26, 1971 - [AD 71-24-02](https://openairdocs.org/ad/71-24-02): Failure of Transmission Mount Strut · FH1100 Manufacturing 1100 and FH-1100. Effective Nov 24, 1971 - [AD 71-11-03](https://openairdocs.org/ad/71-11-03): VNE Placard · FH1100 Manufacturing 1100 and FH-1100. Effective May 19, 1971 - [AD 68-08-09](https://openairdocs.org/ad/68-08-09): Coupling Shaft · FH1100 Manufacturing FH-1100. Effective Apr 23, 1968 - [AD 68-06-05](https://openairdocs.org/ad/68-06-05): Failure of Coupling Shaft · FH1100 Manufacturing FH-1100. Effective Mar 23, 1968 - [AD 68-02-04](https://openairdocs.org/ad/68-02-04): Cyclic Input Swashplate Ring · FH1100 Manufacturing FH-1100. Effective Jan 27, 1968 - [AD 66-30-05](https://openairdocs.org/ad/66-30-05): Main Engine Drive Shaft · FH1100 Manufacturing FH-1100. Effective Dec 20, 1966 ### Matched by engine (Allison 250 SER 250HP) None in force. ### 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 ## Information bulletins (advisory) (1 in force) - [SAIB SW-07-05](https://openairdocs.org/saib/SW-07-05): Inspect the airframe and airframe components. Issued Oct 27, 2006 ## NTSB investigations None matched to N581FH. ## FAA accident and incident reports None matched to N581FH. ## 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. ## STCs that may be installed (OpenAirDocs) (24) 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 airframe (Fairchild Hiller FH-1100) - [STC SA800EA](https://openairdocs.org/stc/SA800EA): Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies. Whelen Aerospace Technologies - [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 SA615EA](https://openairdocs.org/stc/SA615EA): Installation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights. Whelen Aerospace Technologies - [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [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 SH110WE](https://openairdocs.org/stc/SH110WE): Dual Foldable/Rigid Internal Litter Installation of the left side of the passenger compartment. Air Space Design and Manufacturing LLC - [STC SH5534SW](https://openairdocs.org/stc/SH5534SW): Installation of Emergency Medical Service Air Ambulance Configuration System. Air Space Design and Manufacturing LLC - [STC SH87WE](https://openairdocs.org/stc/SH87WE): Installation of twin litters on the left side of the interior passenger compartment including the supporting structure and a moveable center door post. Air Space Design and Manufacturing LLC - [STC SR00221SE](https://openairdocs.org/stc/SR00221SE): Installation of a sky sign lighted display, S/N 105. Whirlybirds Limited - [STC SA2844CE](https://openairdocs.org/stc/SA2844CE): Installation of a plastic cap enclosure over the anti-collision strobe light system. Air Transport Inc - [STC SA4173NM](https://openairdocs.org/stc/SA4173NM): Installation of Simplex Model 7600 modular electrical system. (47G-5 WITH 12 VOLT SYSTEM). Simplex Manufacturing Company - [STC SH1764NM](https://openairdocs.org/stc/SH1764NM): Installation of a Simplex Model 7100 spray system. Simplex Manufacturing Company - [STC SH1105NW](https://openairdocs.org/stc/SH1105NW): Installation of American Avionics, Inc. MAC-1000 Master Accessory Control System. American Avionics Inc - [STC SH107WE](https://openairdocs.org/stc/SH107WE): Installation of Nightsun SX-16C searchlight. Spectrolab, Inc - [STC SH155WE](https://openairdocs.org/stc/SH155WE): Installation of battery temperature monitor system. K S Avionics, Inc - [STC SH403NW](https://openairdocs.org/stc/SH403NW): Installation of Simplex Manufacturing Inc series 500 spray system. Simplex Manufacturing Company - [STC SH975EA](https://openairdocs.org/stc/SH975EA): Installation of Consolidated Instrument Co., Inc. B206-TA-180 and B206D-TA-180 temperature alert temperature monitoring. Consolidated Instrument Company, Inc - [STC SH118WE](https://openairdocs.org/stc/SH118WE): Installation of single, foldable emergency stretcher on left side of passenger compartment. Progressive Avn Limited - [STC SH367AL](https://openairdocs.org/stc/SH367AL): Installation of Alaskan Sky-Craft Co. cargo baskets. Alaskan Sky-Craft Co - [STC SH1010SW](https://openairdocs.org/stc/SH1010SW): Sliding tinted glass window assembly for forward right and left cabin doors. M & N Plastics Inc - [STC SH341AL](https://openairdocs.org/stc/SH341AL): Installation of Airglas skis. Airglas Engineering Company Inc - [STC SH360AL](https://openairdocs.org/stc/SH360AL): Installation of modified cargo racks. Alaska Helicopters - [STC SH646EA](https://openairdocs.org/stc/SH646EA): Installation of provisions for radar antenna waveguide. Fairchild Hiller Corp ## Related - Other Fairchild Hiller FH-1100 aircraft: https://openairdocs.org/model/fairchild-hiller-fh-1100/aircraft.md - The Allison 250 SER 250HP engine: https://openairdocs.org/engine/allison-250-ser-250hp.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.