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Propellers

STC SP161NW

FAA DRS lists SP161NW as Current · Reissued, held by Pacific Propeller International LLC, for Hamilton Standard Division 23D. Recorded change: Installation of rear spider seal in lieu of Hamilton Standard seal per FAA sealed Pacific Propeller, Inc. Drawing List No. 7500, dated February 24, 1975, or later FAA sealed revision thereto. Snapshot dated June 30, 2026.

Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of rear spider seal in lieu of Hamilton Standard seal per FAA sealed Pacific Propeller, Inc. Drawing List No. 7500, dated February 24, 1975, or later FAA sealed revision thereto.

SP161NW identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Hamilton Standard Division 23D. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Hamilton Standard Division 23D model, serial range, and configuration?
  2. 02Which propeller, governor, spinner, engine, and vibration limits apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?