FAA-listed STC holder

Northwest Propeller Services Inc. STCs

The Jun 30, 2026 FAA DRS snapshot lists 3 selected supplemental type certificates with status Current under Northwest Propeller Services Inc.. The records span 27 public aircraft directories and 1 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

listed Current at snapshot

aircraft directories

modification categories

Jan 12, 2007

latest recorded revision

Recently revised records

Showing the 3 most recently revised records. Category directories provide the complete paginated discovery path.

3 displayed records.

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

Northwest Propeller Services Inc. supplemental type certificates, aircraft applicability, source status and dates
STC and modification	Aircraft / model / TC	Source status and dates	Holder and authority
SA2229CE Installation of McCauley 2A34C203/90DCA-2 or 2A34C203/90DCA-8 propeller. (THRU S/N 18052770). Propellers View record	Cessna Aircraft 180TC 5A6 Cessna Aircraft 180ATC 5A6 Cessna Aircraft 180BTC 5A6 Cessna Aircraft 180CTC 5A6 Cessna Aircraft 180DTC 5A6 Cessna Aircraft 180ETC 5A6 Cessna Aircraft 180FTC 5A6 Cessna Aircraft 180GTC 5A6 Cessna Aircraft 180HTC 5A6 Cessna Aircraft 180JTC 5A6	Current at cited snapshot Revised Jan 12, 2007 Application: Oct 17, 1986	FAA holder: Northwest Propeller Services Inc. FAA authority record
SA2253CE Installation of McCauley C2A34C204/90DCB-8, 2A34C203/90DCA-8 or 2A34C201/90DA-8 propeller (through S/N 18265175). Propellers View record	Cessna Aircraft 182TC 3A13 Cessna Aircraft 182ATC 3A13 Cessna Aircraft 182BTC 3A13 Cessna Aircraft 182CTC 3A13 Cessna Aircraft 182DTC 3A13 Cessna Aircraft 182ETC 3A13 Cessna Aircraft 182FTC 3A13 Cessna Aircraft 182GTC 3A13 Cessna Aircraft 182HTC 3A13 Cessna Aircraft 182JTC 3A13 Cessna Aircraft 182KTC 3A13 Cessna Aircraft 182LTC 3A13 Cessna Aircraft 182MTC 3A13 Cessna Aircraft 182NTC 3A13 Cessna Aircraft 182PTC 3A13	Current at cited snapshot Revised Jan 12, 2007 Application: Nov 10, 1986	FAA holder: Northwest Propeller Services Inc. FAA authority record
SP1521SO Install Northwest Propeller Service Counterweight Thrust Bearings in place of the Hamilton Standard Counterweight Thrust Bearings. Propellers View record	Hamilton Standard Division 12D40TC P-257 Hamilton Standard Division 2D30TC P-206	Current at cited snapshot Revised Aug 6, 2003 Application: Apr 7, 1983	FAA holder: Northwest Propeller Services Inc. FAA authority record

Northwest Propeller Services Inc. STCs

Modification mix

Aircraft represented

Recently revised records

Installation of McCauley 2A34C203/90DCA-2 or 2A34C203/90DCA-8 propeller. (THRU S/N 18052770).

Installation of McCauley C2A34C204/90DCB-8, 2A34C203/90DCA-8 or 2A34C201/90DA-8 propeller (through S/N 18265175).

Install Northwest Propeller Service Counterweight Thrust Bearings in place of the Hamilton Standard Counterweight Thrust Bearings.