# STCs that may be installed: Douglas DC-6

A list on [Douglas DC-6](https://openairdocs.org/model/douglas-dc-6.md).

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

Page 1 of 2 · 59 STCs

- [STC SA2622NM](https://openairdocs.org/stc/SA2622NM.md): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101) · Precise Flight Inc.
- [STC SA863EA](https://openairdocs.org/stc/SA863EA.md): Incorporation of DME Corporation emergency evacuation slide lighting system · Astronics Luminescent Systems Inc
- [STC ST02580AT](https://openairdocs.org/stc/ST02580AT.md): Lithium cell battery pack to replace currently approved alkaline battery pack used in escape slide emergency light system. · Astronics Luminescent Systems Inc
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH.md): Installation of Airwolf Filter Corp. Air Oil Separator · Airwolf Filter Corporation
- [STC SA01282NY](https://openairdocs.org/stc/SA01282NY.md): 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 ST334CH](https://openairdocs.org/stc/ST334CH.md): Installation of Superflite 102 fabric. · Aviation Products Systems Inc.
- [STC SA1045WE](https://openairdocs.org/stc/SA1045WE.md): Installation of door-mounted inflatable evacuation slides in accordance with United Air Lines Approved Drawing List COA 6-3072/COA 6-3087. United Air Lines Supplemental Revision No. 1 dated August 25, 1965, to Douglas Airplane Flight Manual SM-19501, or Supplemental Revision No. 1 dated June 10, 1966, to Douglas AFM SM-19544 is required. · United Airlines Inc
- [STC SA1311WE](https://openairdocs.org/stc/SA1311WE.md): Installation of a United Data Control P/N V557 Voice Recorder in Boeing DC-6, DC-6A, DC-6B aircraft · United Airlines Inc
- [STC SA4-577](https://openairdocs.org/stc/SA4-577.md): Aileron trim control gearing modification. · United Airlines Inc
- [STC SA363SO](https://openairdocs.org/stc/SA363SO.md): Cockpit voice recorder. · Delta Airlines Inc
- [STC SA1366GL](https://openairdocs.org/stc/SA1366GL.md): Surrendered and incorporated into STC ST334CH. · Cooper Aviation Supply Company, Inc.
- [STC SA02168AK](https://openairdocs.org/stc/SA02168AK.md): Installation of hourmeter airspeed switch. For unpressurized aircraft only. Pressurized aircraft must have pressurization system deactivated. · Avalaska Inc
- [STC SA1753WE](https://openairdocs.org/stc/SA1753WE.md): Installation of VIP core assembly P/N VIP-106-18. · Vibration Isolation Products Corp
- [STC SA4-525](https://openairdocs.org/stc/SA4-525.md): Installation of VIP P/N 106-1J engine mount core. · Vibration Isolation Products Corp
- [STC ST595SO](https://openairdocs.org/stc/ST595SO.md): Installation of exhaust system bracket. · Atlas Aircraft Corporation
- [STC SA1083SO](https://openairdocs.org/stc/SA1083SO.md): Installation of four Pratt & Whitney R-2800-99W engines and Hamilton Standard propellers. · Bellomy-Lawson Aviation Inc
- [STC SA1066SO](https://openairdocs.org/stc/SA1066SO.md): Alternate installation of hydraulic pump utilizing existing engine drive. · Bellomy-Lawson Aviation Inc
- [STC ST484SO](https://openairdocs.org/stc/ST484SO.md): Installation of cargo restraining bulkhead. · Aeronautical Engineers, Inc
- [STC SA3151WE](https://openairdocs.org/stc/SA3151WE.md): Installation of 3000 gallon external retardant tanks under the fuselage at the wing center section. · Aero Union Corporation
- [STC ST536SO](https://openairdocs.org/stc/ST536SO.md): Installation of aft cargo door. · Aeronautical Engineers, Inc
- [STC ST597SO](https://openairdocs.org/stc/ST597SO.md): Installation of aft cargo door. · Aeronautique Engr Inc
- [STC ST535SO](https://openairdocs.org/stc/ST535SO.md): Installation of cargo floor. · Aeronautical Engineers, Inc
- [STC ST843SO](https://openairdocs.org/stc/ST843SO.md): Installation of aft cargo door. · Aeronautical Engineers, Inc
- [STC SA2994WE](https://openairdocs.org/stc/SA2994WE.md): Deactivation of high blower on CB-16 engines. · Mercer Enterprises
- [STC ST807SO](https://openairdocs.org/stc/ST807SO.md): Installation of cargo interior and extension of lower aft cargo compartment. · Bellomy-Lawson Aviation Inc
- [STC ST528SO](https://openairdocs.org/stc/ST528SO.md): Installation of cargo restraining bulkhead. · Bellomy-Lawson Aviation Inc
- [STC ST555SO](https://openairdocs.org/stc/ST555SO.md): Installation of rear cargo door. · Bellomy-Lawson Aviation Inc
- [STC SA2761WE](https://openairdocs.org/stc/SA2761WE.md): Interior arrangement. · Mercer Enterprises
- [STC ST495SO](https://openairdocs.org/stc/ST495SO.md): Installation of aft cargo door. · Aeronautical Engineers, Inc
- [STC ST470SO](https://openairdocs.org/stc/ST470SO.md): Installation of aft cargo door. · Bellomy-Lawson Aviation Inc
- [STC ST463SO](https://openairdocs.org/stc/ST463SO.md): Installation of cargo door. · Miami Aviation Corp
- [STC ST456SO](https://openairdocs.org/stc/ST456SO.md): Installation of cargo restraining bulkhead. A clean and unobstructed passageway between the crew compartment and cargo compartment on the side of the bulkhead is required. · Aeronautical Engineers, Inc
- [STC SA1-580](https://openairdocs.org/stc/SA1-580.md): Television broadcasting equipment. · Midwest Program on Airborne Television Instruction
- [STC SA7SO](https://openairdocs.org/stc/SA7SO.md): Radome and radar antennae mount provisions for up to 22-inch diameter antennae, RAC AVQ-10 or Bendix RDR-1 (X/C Band). · Tempo Design Corp
- [STC SA1082WE](https://openairdocs.org/stc/SA1082WE.md): Interior arrangements. · AiResearch Aivation Service Co
- [STC SA1148WE](https://openairdocs.org/stc/SA1148WE.md): Interior modifications. · Jay- Dee Aircraft Supply Co
- [STC SA12SO](https://openairdocs.org/stc/SA12SO.md): Altimeter vibrators. · Pan American World Airways Inc
- [STC SA1302WE](https://openairdocs.org/stc/SA1302WE.md): Fairchild A100 voice recorder. · Western Airlines Inc
- [STC SA1517WE](https://openairdocs.org/stc/SA1517WE.md): Interior arrangement for 97 occupants, DME installation, interior emergency lighting installation. · Mercer Enterprises
- [STC SA197SO](https://openairdocs.org/stc/SA197SO.md): Cockpit voice recorder. · Pan American World Airways Inc
- [STC SA1PC](https://openairdocs.org/stc/SA1PC.md): DC-7 increased power cabin superchargers. · Hawaiian Airlines Inc
- [STC SA21SO](https://openairdocs.org/stc/SA21SO.md): Modified zero reader system. · Pan American World Airways Inc
- [STC SA229SO](https://openairdocs.org/stc/SA229SO.md): B-400 oil separator. · Air Carrier Eng Service Inc
- [STC SA4-1169](https://openairdocs.org/stc/SA4-1169.md): Interior modifications. · AiResearch Aivation Service Co
- [STC SA4-1311](https://openairdocs.org/stc/SA4-1311.md): Ceconite 101 covering of rudder. · Cooper Engineering Corporation
- [STC SA4-202](https://openairdocs.org/stc/SA4-202.md): Oil filter 30816A with CP-1438-0 element. · Winslow Aerofilter Corp
- [STC SA4-218](https://openairdocs.org/stc/SA4-218.md): Windows in fuselage. · Pan American World Airways Inc.
- [STC SA4-328](https://openairdocs.org/stc/SA4-328.md): Step kit added to fore and aft cargo door. · National Aircraft Corp
- [STC SA4-41](https://openairdocs.org/stc/SA4-41.md): Structure, power plant, systems and equipment modification. · Northwest Airlines Inc
- [STC SA4-502](https://openairdocs.org/stc/SA4-502.md): Engine mount core assemblies. · Dow-Elco Inc

Next page: https://openairdocs.org/model/douglas-dc-6/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, m.matched_model
FROM (
  SELECT stc_number, min(matched_model) AS matched_model
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet'
  WHERE aircraft_model_code IN ('3021702')
  GROUP BY stc_number
) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number
```

This list as a web page: https://openairdocs.org/model/douglas-dc-6/stcs

---
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.