# Search: 427

Supplemental type certificates: 42 matches in release 2026-11-04. Page 1.

- [STC SR02287AK](https://openairdocs.org/stc/SR02287AK.md): Installation of Airglas, Inc., L2700-427 Ski Kit. · Airglas Inc.
  > Installation of Airglas, Inc., L2700-**427** Ski Kit.
- [STC SR01520NY](https://openairdocs.org/stc/SR01520NY.md): Installation of bulkhead adapter assembly p/n 427-25-11-901-001. · Helipro International
  > Installation of bulkhead adapter assembly p/n **427**-25-11-901-001.
- [STC SR00419DE](https://openairdocs.org/stc/SR00419DE.md): Installation of cabin heater. · Air Comm Corporation
  > ["**427**"]
- [STC SR02304AT](https://openairdocs.org/stc/SR02304AT.md): Cabin Floor Protectors manufactured · Bell Helicopter Textron Inc.
  > ["**427**"]
- [STC SR01296NY](https://openairdocs.org/stc/SR01296NY.md): Installation of Electronic News Gathering System · HAS Corporation
  > ["**427**"]
- [STC SR01666NY](https://openairdocs.org/stc/SR01666NY.md): Installation of Helipro Sliding Windows. · ACROHelipro Global Services Inc.
  > ["**427**"]
- [STC SR02072AT](https://openairdocs.org/stc/SR02072AT.md): Manufacture of replacement passenger window. · Bell Helicopter Textron Inc.
  > ["**427**"]
- [STC SR02381AT](https://openairdocs.org/stc/SR02381AT.md): Installation of passenger sliding doors. · Bell Helicopter Textron Inc.
  > ["**427**"]
- [STC SR00418DE](https://openairdocs.org/stc/SR00418DE.md): Installation of cabin air conditioning system. · Air Comm Corporation
  > ["**427**"]
- [STC SR01266NY](https://openairdocs.org/stc/SR01266NY.md): Installation of Wire Strike Protection System (WSPS). · Bristol Aerospace Ltd
  > ["**427**"]
- [STC SR01532NY](https://openairdocs.org/stc/SR01532NY.md): Installation of D427-659 bearpaws and skis. · Dart Aerospace Limited
  > ["**427**"]
- [STC SR02077AT](https://openairdocs.org/stc/SR02077AT.md): Manufacture of Cyclic support Safety Cover. · Bell Helicopter Textron Inc.
  > ["**427**"]
- [STC SA1-427](https://openairdocs.org/stc/SA1-427.md): Pratt & Whitney R-985 engine installation with Simmonds Aero- cessories 580047 fuel injector per STC SE1-391, and takeoff weight increase to 9,800 lbs. and landing weight to 9,400 lbs. per STC SA2-820. · Staggerwing Museum Foundation Inc.
  > SA1-**427**
- [STC SR02496LA](https://openairdocs.org/stc/SR02496LA.md): Installation of a single Garmin G500H system · Rotorcraft Support Inc
  > ["**427**"]
- [STC SR00472DE](https://openairdocs.org/stc/SR00472DE.md): Installation of mounting hardware to support blade folding kit. · Dart Aerospace USA Inc.
  > ["**427**"]
- [STC SR02432NY-D](https://openairdocs.org/stc/SR02432NY-D.md): Installation Chelton FlightLogic Electronic Flight Instrument System (EFIS) · Sikorsky Aircraft Corporation
  > ["**427**"]
- [STC SR01935NY-D](https://openairdocs.org/stc/SR01935NY-D.md): Installation of a Honeywell Chadwick Model 15175 VXP System · Diagnostic Solution International LLC
  > ["**427**"]
- [STC SR01953NY-D](https://openairdocs.org/stc/SR01953NY-D.md): Installation of a Honeywell Chadwick Model 15175 VXP System · Honeywell International Inc
  > ["**427**"]
- [STC SR01813LA](https://openairdocs.org/stc/SR01813LA.md): Installation of Apical Industries, Inc. Emergency Float Kit. · Apical Industries, Inc. dba Dart Aerospace
  > ["**427**"]
- [STC SR01262NY](https://openairdocs.org/stc/SR01262NY.md): Installation of a FSI Ultra Media II, III, or Wescam camera and isolation mount. · Helipro International
  > ["**427**"]

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