SR02999NY
Installation of Auxiliary External Torque Gauge and External Load Meter in accordance with VIH Aerospace Inc., Master Document List VS61-0715J-MDL, Revision A, Dated January 24, 2011, approved by Transport Canada Civil Aviation (TCAA) on February 15, 2011, or later TCCA approved revisions. Held by Vih Aerospace INC (Canada), which holds 26 approved modifications in all. Last revised July 6, 2011. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Sikorsky Aircraft Corporation
- Models
- S-61N
- Type certificate
- 1H15
- On this site
- Sikorsky S-61 54 registered
- 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.