SA1158NW
Installation of an auxiliary electric Hydraulic Pump System in accordance with Simuflight, Seattle Modification and Installation Procedure Instruction Report SS-900. NOTE: This system augments the existing manually operated hydraulic system for the landing gear and flap operation. Held by Mchugh Aviation INC, which holds 14 approved modifications in all. Last revised June 25, 2004. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Sky Enterprises Inc.
- Models
- RC-3
- Type certificate
- A-769
- 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 21, 2026.