# N992BB: 1976 Siai-Marchetti SM 1019 - Status: Valid registration - Airframe: [Siai-Marchetti SM 1019](https://openairdocs.org/model/siai-marchetti-sm-1019) (registry code 8121215, 2 seats) - Engine: [Allison 250-B17E](https://openairdocs.org/engine/allison-250-b17e) (registry code 03069) - Data sheets: [TCDS E10CE](https://openairdocs.org/tcds/E10CE) (Rolls-Royce Corporation) (OpenAirDocs) - Serial number: 012 - Year built: 1976 - Type: Fixed wing single engine - Engine type: Turbo-prop - Airworthiness: Experimental, exhibition - Airworthiness date: July 11, 2015 - Certificate issued: April 28, 2006 - Expires: February 28, 2030 - Mode S code: ADDA2C - Registered owner: [Ruby Valley Aviation Lc](https://openairdocs.org/faa-owner/RUBY%20VALLEY%20AVIATION%20LC) - Location: [Twin Bridges, MT](https://openairdocs.org/faa-place/MT/Twin%20Bridges) - Owner type: LLC - Owner's area on the map: 45.5193° N, 112.3567° W: Placed by OpenAirDocs at the center of ZIP code 59754, within about 11 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=992BB - Page: https://openairdocs.org/aircraft/N992BB 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): 9 in force ### Matched by airframe (Siai-Marchetti SM 1019) None in force. ### Matched by engine (Allison 250-B17E) - [AD 2006-16-04](https://openairdocs.org/ad/2006-16-04): Inspection of the fuel nozzle screen · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Sep 7, 2006 - [AD 2006-13-06](https://openairdocs.org/ad/2006-13-06): Gas producer rotor assembly tie bolts · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 16 more. Effective Jul 26, 2006 - [AD 2005-10-13](https://openairdocs.org/ad/2005-10-13): Turbine energy absorbing ring · Rolls-Royce 250-B17B, 250-B17C, 250-B17D and 7 more. Effective Jun 22, 2005 - [AD 2004-26-09](https://openairdocs.org/ad/2004-26-09): Compressor Adaptor Couplings · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 8 more. Effective Feb 8, 2005 - [AD 2001-24-12](https://openairdocs.org/ad/2001-24-12): Helical Torquemeter Gearshaft Assembly · Rolls-Royce 250-B17, 250-B17C, 250-B17D and 13 more. Effective Dec 19, 2001 - [AD 98-24-28](https://openairdocs.org/ad/98-24-28): Main Fuel Control Bellows · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 36 more. Effective Jan 7, 1999 - [AD 88-17-01](https://openairdocs.org/ad/88-17-01): Fuel Controls · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 26 more. Effective Mar 1, 1989 - [AD 82-24-05](https://openairdocs.org/ad/82-24-05): Control Assembly and Power Turbine Governor Assembly · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 43 more. Effective Nov 26, 1982 - [AD 77-15-12](https://openairdocs.org/ad/77-15-12): Power Turbine Coupling Nut · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 23 more. Effective Sep 23, 1977 ### Historical (superseded or no longer in force) - [AD 2015-02-22](https://openairdocs.org/ad/2015-02-22) (historical): Repetitive visual inspections · Rolls-Royce 250-B17, 250-B17B, 250-B17C and 15 more. Effective Mar 9, 2015 - [AD 2004-24-09](https://openairdocs.org/ad/2004-24-09) (historical): Fuel nozzle · Rolls-Royce 250-B15A, 250-B15E, 250-B15G and 40 more. Effective Jan 5, 2005 - [AD 2001-20-51](https://openairdocs.org/ad/2001-20-51) (historical): Helical Torquemeter Gearshaft Assembly · 250-B17, 250-B17C, 250-B17D and 12 more ## Information bulletins (advisory) None matched. ## NTSB investigations (1) 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 WPR24LA192](https://openairdocs.org/ntsb/WPR24LA192), May 19, 2024: SIAI Marchetti SM. 1019 (N992BB), Twin Bridges, MT, substantial damage. Probable cause: The binding of the parking brake cable, which resulted in un-commanded brake application during the landing roll and subsequent nose over. ## FAA accident and incident reports (1) 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 20240519005839A](https://openairdocs.org/incident/20240519005839A), May 19, 2024: Siai-Marchetti SM 1019 (N992BB), Twin Bridges, MT, Substantial damage. Following this investigation, I did not identify any regulatory violations or pilot proficiency issues as causal factors that contributed to this accident. Per… ## 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) (3) 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 (Allison 250-B17E) - [STC SE00327AT](https://openairdocs.org/stc/SE00327AT): Installation of PC Safety Valve Kit. Bell Helicopter Textron Inc - [STC ST00037AT](https://openairdocs.org/stc/ST00037AT): Unison igniter plugs, P/N 9044400-1. Unison Industries - [STC SQ00338AT](https://openairdocs.org/stc/SQ00338AT): Unison igniter leads, P/N9048222-101, 102, 103, 104, 105, 106. Unison Industries ## Related - Other Siai-Marchetti SM 1019 aircraft: https://openairdocs.org/model/siai-marchetti-sm-1019/aircraft.md - The Allison 250-B17E engine: https://openairdocs.org/engine/allison-250-b17e.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.