# STCs that may be installed: Beech C90

A list on [Beech C90](https://openairdocs.org/model/beech-c90.md).

In force first, then newest. The registry doesn’t record which STCs an aircraft has.

Page 1 of 8 · 377 STCs

- [STC SA00034IB](https://openairdocs.org/stc/SA00034IB.md): Installation/Upgrade of Sandel ST3400 Terrain Awareness Warning System with Enhanced Altitude Accuracy · Maxcraft Avionics Ltd.
- [STC SA00061LA](https://openairdocs.org/stc/SA00061LA.md): Installation of JPI digital tachometer. · J P Instruments
- [STC SA00068SE](https://openairdocs.org/stc/SA00068SE.md): Installation of fuel flow/pressure instruments. (W/TSIO-360-MB1) · Electronics International Inc.
- [STC SA00112AT](https://openairdocs.org/stc/SA00112AT.md): Installation of a Marathon KSP 400 battery. · Aviall Services, Inc.
- [STC SA00149BO](https://openairdocs.org/stc/SA00149BO.md): Installation of Aircraft Components, Inc. Volt and Vac Alert System, P/N 2044-1 · Aircraft Components Inc
- [STC SA00161BO (3 OF 3](https://openairdocs.org/stc/SA00161BO%20(3%20OF%203.md): Installation of Avidyne Corporation FlightMax 700-00007-() EX500 Multi-Function Display. · Avidyne Corporation
- [STC SA00165BO](https://openairdocs.org/stc/SA00165BO.md): Installation of Avidyne Corporation Datalink Coupler, part number 700-00015-000 per Avidyne Corporation Master Document List, Document No. AVACP-006 dtd 1/2/93 or later FAA-approved revisions. · Avidyne Corporation
- [STC SA00171BO](https://openairdocs.org/stc/SA00171BO.md): Installation of Pratt & Whitney Engine Services, Inc. Aircraft Data Acquisition System ADAS+, P/N ADAS-K-010. · Pratt & Whitney Engine Services Inc.
- [STC SA00196BO](https://openairdocs.org/stc/SA00196BO.md): Installation of Pratt & Whitney Engine Services, Inc. Data Transmission Unit · Pratt & Whitney Engine Services Inc.
- [STC SA00226DE](https://openairdocs.org/stc/SA00226DE.md): Installation of protective panel to prevent ice impact damage to aircraft nose structure. · Stevens Aviation Inc
- [STC SA00227NY](https://openairdocs.org/stc/SA00227NY.md): Installation of Sky Harbour Aircraft Refinishing Ltd. Ice Damage Prevention Plates. · Sky Harbour Aircraft Refinishing
- [STC SA00237WI](https://openairdocs.org/stc/SA00237WI.md): Installation of a Bendix/King EFIS-4 0electronic flight instrument system · Elliott Aviation Technical Products
- [STC SA00243BO (4 OF 5)](https://openairdocs.org/stc/SA00243BO%20(4%20OF%205).md): Installation of Centurion Consulting, Inc. GPS Steering Assist Module (SAM) with roll steering (p/n 0025-5100), or without roll steering (p/n 0025-5200). · Icarus Avionics, LLC
- [STC SA00257AT](https://openairdocs.org/stc/SA00257AT.md): Installation of a Concorde RG-380E sealed lead acid battery. · Textron Aviation Inc
- [STC SA00269BO](https://openairdocs.org/stc/SA00269BO.md): Installation of Avidyne Corporation TWX 670 Tactical Weather Detection System P/N 850-00026-000-() consisting of Avidyne Processor P/N 700-00033-000-(), Sensor Systems Inc. Antenna P/N S72-1715-1 with doubler plate P/N S72-171530-1, and Avidyne Mounting Tray P/N 700-00034-000. · Avidyne Corporation
- [STC SA00273WI](https://openairdocs.org/stc/SA00273WI.md): Installation of Stretcher, Patient Loading, and Support system. · Lifeport Inc
- [STC SA00281BO](https://openairdocs.org/stc/SA00281BO.md): Installation of Avidyne Corporation MLX770 MultiLink Broadcast Transceiver P/N 700-00163-(), Sensor Systems Inc. Antenna P/N S67-1575-109, or equivalent, and optional Avidyne Mounting Tray P/N 700-00165-000 · Avidyne Corporation
- [STC SA00290BO](https://openairdocs.org/stc/SA00290BO.md): Installation of Avidyne Corporation Part Number 700-00167-XXX Multi-Function Display and Mounting Tray Assembly Part Number 700-00168-XXX · Avidyne Corporation
- [STC SA00343BO](https://openairdocs.org/stc/SA00343BO.md): Installation of a single configuration or a dual configuration Avidyne Corporation Integrated Flight Display, Model IFD540 loaded with Release 10.0 software (or later FAA approved release) · Avidyne Corporation
- [STC SA00344BO PAGE 1](https://openairdocs.org/stc/SA00344BO%20PAGE%201.md): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. · Whelen Aerospace Technologies
- [STC SA00352BO PAGE 1](https://openairdocs.org/stc/SA00352BO%20PAGE%201.md): Installation of an Avidyne Corporation Mode A/C/S Transponder with ADS-B Out capability, Model AXP340 loaded with Version 3.13 software (or later FAA approved version), · Avidyne Corporation
- [STC SA00367SE](https://openairdocs.org/stc/SA00367SE.md): Installation of a Nose Baggage Compartment on Beech KingAir Models. · Sierra Nevada Corporation/Integrated Mission Systems
- [STC SA00379SE](https://openairdocs.org/stc/SA00379SE.md): Installation of the (1) Honeywell MK V Enhanced Ground Proximity Warning System or (2) the Honeywell MK VII EGPWS · Honeywell International Inc
- [STC SA00415WI](https://openairdocs.org/stc/SA00415WI.md): Installation of a baggage door. · Avcon Industries Inc
- [STC SA00453WI](https://openairdocs.org/stc/SA00453WI.md): Installation of a Lateral Tracking Seat Base. · Aviation Fabricators Inc
- [STC SA00482DE](https://openairdocs.org/stc/SA00482DE.md): Installation of an Aircraft Noise Control (ANC) System. · Quiet Flight LLC
- [STC SA00498SE](https://openairdocs.org/stc/SA00498SE.md): Installation of the AlliedSignal Cockpit Voice Recorder System. · GHP Avionic Consulting
- [STC SA00575WI](https://openairdocs.org/stc/SA00575WI.md): Installation of Phoenix Aerospace, Inc. (PAI) Solid State DC Voltage Regulator, Model VR-1010-24-2A. · Phoenix Aerospace, Inc
- [STC SA00622WI](https://openairdocs.org/stc/SA00622WI.md): Shoulder harness anchor installation · Aviation Fabricators Inc
- [STC SA00635WI](https://openairdocs.org/stc/SA00635WI.md): Jump seat installation. · Aviation Fabricators Inc
- [STC SA00674WI-D](https://openairdocs.org/stc/SA00674WI-D.md): Modification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II system installation. · Rockwell Collins Inc
- [STC SA00681WI-D](https://openairdocs.org/stc/SA00681WI-D.md): Modification of Collins VHF-20/VHF-20A/VHF-20B VHF COMM Receiver Transmitter with CTL-20 Control Pro Line I System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System Installation · Rockwell Collins Inc
- [STC SA00686SE](https://openairdocs.org/stc/SA00686SE.md): Installation of American Aviation, Inc., engine exhaust stacks. · American Aviation Inc
- [STC SA00692SE](https://openairdocs.org/stc/SA00692SE.md): Replacement of certain BF Goodrich pneumatic deicer boots · SMR Technologies
- [STC SA00706SE](https://openairdocs.org/stc/SA00706SE.md): Installation of fuselage mounted emergency medical stowage box with or without oxygen and systems outlets. · Lifeport Inc
- [STC SA00737WI](https://openairdocs.org/stc/SA00737WI.md): Landing gear position switch and squat switch modification. · Supplemental Technologies Corporation
- [STC SA00741WI](https://openairdocs.org/stc/SA00741WI.md): Installation of the Concorde RG-380E/K series VRSLA batteries in airplanes listed on the attached FAA approved Model List (AML) · Aero-Mach Wilco LLC
- [STC SA00749AT](https://openairdocs.org/stc/SA00749AT.md): Modification of flush type fuel caps for installation of a locking cylinder and keeper. (1964 and subsequent) · Aero Trim, Inc
- [STC SA00765DE](https://openairdocs.org/stc/SA00765DE.md): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor · Peregrine
- [STC SA00780SE](https://openairdocs.org/stc/SA00780SE.md): Installation of the True Lock Safety Retention Axle Lock Nut System · True Lock LLC
- [STC SA00782WI-D](https://openairdocs.org/stc/SA00782WI-D.md): Modification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System Installation. · Textron Aviation Inc
- [STC SA00823CH](https://openairdocs.org/stc/SA00823CH.md): Installation of various de-icer wire harnesses. · SMR Technologies
- [STC SA00841CH](https://openairdocs.org/stc/SA00841CH.md): Installation of four place side facing divan. · Daedalus, Inc
- [STC SA00872SE](https://openairdocs.org/stc/SA00872SE.md): Installation of modified ram air engine induction system (Option I or Option II). · American Aviation Inc
- [STC SA00886AT-D](https://openairdocs.org/stc/SA00886AT-D.md): Installation and operation of a CAL Corporation Cal Quest Satellite Communications System. · East Coast Avionics, Inc
- [STC SA00889DE](https://openairdocs.org/stc/SA00889DE.md): Installation of Teledyne Battery Products P/N 7638-44 Lead-Acid Battery · Teledyne Battery Products
- [STC SA01004AT](https://openairdocs.org/stc/SA01004AT.md): Installation of right hand side nacelle fuel cell assembly. · FFC Manufacturing
- [STC SA01034CH](https://openairdocs.org/stc/SA01034CH.md): Installation of RGC250 radar graphics computer. · Goodrich Avionics Systems Inc
- [STC SA01046CH](https://openairdocs.org/stc/SA01046CH.md): Installation of SMR Technologies engine inlet anti-icer models. · SMR Technologies Inc
- [STC SA01071CH](https://openairdocs.org/stc/SA01071CH.md): Installation of AlliedSignal MK VII Enhanced Ground Proximity Warning System (EGPWS). · Elliott Aviation Technical Products

Next page: https://openairdocs.org/model/beech-c90/stcs.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT s.stc_number, s.description, s.holder, s.status, s.status_date
FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' s
WHERE s.stc_number IN (SELECT stc_number FROM 'https://openairdocs.org/data/latest/faa_stc_model.parquet' WHERE model_key = 'C90')
ORDER BY s.status = 'Current' DESC, s.stc_number
```

This list as a web page: https://openairdocs.org/model/beech-c90/stcs

---
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