Skip to content

FAA-listed STC holder

Whisper Jet Inc. STCs

The Jun 30, 2026 FAA DRS snapshot lists 4 selected supplemental type certificates with status Current under Whisper Jet Inc.. The records span 1 public aircraft directories and 2 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

4
listed Current at snapshot
1
aircraft directories
2
modification categories
Jun 7, 2010
latest recorded revision

Aircraft represented

Recently revised records

Showing the 4 most recently revised records. Category directories provide the complete paginated discovery path.

4 displayed records.

Search every indexed record for this holder. The table below contains the recently revised records shown on this page.

Whisper Jet Inc. supplemental type certificates, aircraft applicability, source status and dates
STC and modificationAircraft / model / TCSource status and datesHolder and authority
SR09229RC

Installation approval of a 5 blade main rotor system and the Air Research TSE331-10UA-511SW engine.

Engine and powerplantView record
  • Sikorsky Aircraft S-55TC 1H4

Current at cited snapshot

Application:

FAA holder: Whisper Jet Inc.

FAA authority record
SR01034AT

Installation of forward and aft facing seats and cabin interior.

Cabin and interiorsView record
  • Sikorsky Aircraft S-55TC 1H4

Current at cited snapshot

Application:

FAA holder: Whisper Jet, Inc.

FAA authority record
SR01274AT

Installation of cabin doors and windows.

Cabin and interiorsView record
  • Sikorsky Aircraft S-55TC 1H4

Current at cited snapshot

Application:

FAA holder: Whisper Jet, Inc.

FAA authority record
SH127WE

Installation of AiResearch TSE-331-3U-303N engine and related changes.

Engine and powerplantView record
  • Sikorsky Aircraft S-55TC 1H4
  • Sikorsky Aircraft S-55BTC 1H4
  • Sikorsky Aircraft S-55CTC 1H4

Current at cited snapshot

Application:

FAA holder: Whisper Jet Inc.

FAA authority record