# N18XW: Beech 18S - Status: Valid registration - Airframe: [Beech 18S](https://openairdocs.org/model/beech-18s) (registry code 1150802, 11 seats) - Data sheets: [TCDS TC 710](https://openairdocs.org/tcds/TC%20710) (Textron Aviation Inc.) (OpenAirDocs) - Serial number: CA191 - Type: Fixed wing multi engine - Engine type: Reciprocating - Certificate issued: January 22, 2016 - Expires: January 31, 2029 - Mode S code: A14075 - Registered owner: [Eastern Stearman Inc Trustee](https://openairdocs.org/faa-owner/EASTERN%20STEARMAN%20INC%20TRUSTEE) - Location: [Leesburg, VA](https://openairdocs.org/faa-place/VA/Leesburg) - Owner type: Corporation - Owner's area on the map: 39.1803° N, 77.5335° W: Placed by OpenAirDocs at the center of ZIP code 20176, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18XW - Page: https://openairdocs.org/aircraft/N18XW 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): 5 in force ### Matched by airframe (Beech 18S) - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 83-21-06 R1](https://openairdocs.org/ad/83-21-06-R1): Crew Seats · AMI Industries Crew Seats, 18A, 18D and 2 more. Effective Apr 26, 1984 - [AD 75-27-09 R2](https://openairdocs.org/ad/75-27-09-R2): Wing Structure · Textron 18A, 18D, 18S (Army C-45C) and 27 more. Effective Aug 21, 1980 - [AD 77-19-07](https://openairdocs.org/ad/77-19-07): Control Column Assembly · Textron 18A, 18D, 18S (Army C-45C) and 27 more. Effective Sep 29, 1977 - [AD 66-02-01](https://openairdocs.org/ad/66-02-01): Air Conditioners · Beechcraft 56TC, 58, 58A and 39 more. Effective Feb 10, 1966 ### Historical (superseded or no longer in force) - [AD 75-09-18](https://openairdocs.org/ad/75-09-18) (historical): Center section truss wing spar and the outer wing panel · Beechcraft 18A, 18D and 18S (Army C-45C). Effective May 1, 1975 ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N18XW. ## FAA accident and incident reports None matched to N18XW. ## 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) (10) 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 (Beech 18S) - [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC - [STC SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC - [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc - [STC SA5190NM](https://openairdocs.org/stc/SA5190NM): Installation of Gustin Aviation chip detector light system. A & L Aircraft Parts Inc - [STC SA01282NY](https://openairdocs.org/stc/SA01282NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K015 on aircraft powered by Pratt & Whitney radial reciprocating engine Series R-985, R-1340 and R-1830. Airwolf Filter Corporation - [STC SA02930NY](https://openairdocs.org/stc/SA02930NY): Installation of Insight Instrument Corporation Graphic Engine Monitor (GEM 610C) models G3, G2, and G1 and 1200C model G4 as primary Cylinder Head Temperature (CHT), Exhaust Gas Temperature (EGT), and Turbine Inlet Temperature (TIT) Instruments. Insight Instrument Corporation - [STC SA1315WE](https://openairdocs.org/stc/SA1315WE): Installation of Mixture Monitor (exhaust gas temperature probe, gage and selector) in accordance with Delta Products Part Lists A-192 and A-193, or in accordance with Tri-Star Corporation Mixture Monitor Installation Instructions dated December 9, 1981, or later FAA approved revision and/or Drawing List MM-127 dated November 15, 1981, or later FAA approved revision in aircraft models listed in Master Eligibility List P-80-A-6 revised March 29, 1968, copy attached, or later FAA approved revision. Universal Corporation - [STC SA1512WE](https://openairdocs.org/stc/SA1512WE): Installation of exhaust gas temperature monitoring systems Model EGT-1. K S Avionics Inc - [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc - [STC SA176SW](https://openairdocs.org/stc/SA176SW): Aluminum sheet covering of elevator, rudders and ailerons. Sherman V Cornstubble ## Related - Other Beech 18S aircraft: https://openairdocs.org/model/beech-18s/aircraft.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.