SA1610SW
Installation of Safeway Deicer Boot P/N 5651 and/or Semsa Lead P/N S.2002 in lieu of Dowty Rotol Boot and/or Leads on Dowty Rotol propeller model R193/4-30-4/50 with blades P/N RA 25907. Held by Unc Accessory Service, which holds 6 approved modifications in all. Last revised April 26, 1995. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Fairchild Industries Inc.; Fairchild Industries Inc.; Fairchild Industries Inc.; Fairchild Industries Inc.; Fairchild Industries Inc.; Fokker Services; Fokker Services; Fokker Services; Fokker Services
- Models
- F27-A, F27-F, FH-227, F27-J, F27-G, F.27 Mark 600, F.27 Mark 500, F.27 Mark 400, F.27 Mark 200
- Type certificates
- 7A1, 7A1, 7A1, 7A1, 7A1, A-817, A-817, A-817, A-817
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 7, 2026.