SR01749NY
Removal of seats in passenger cabin to limit the maximum seating to nine passengers per Carson Helicopters, Inc. Report No. CHI-1000 latest revision. Limited to installation on serial numbers 61216, 61220, 61242, and 61744 ONLY that have been modified to short fuselage configuration. Held by Carson Helicopters, INC, which holds 15 approved modifications in all. Last revised August 26, 2003. System: cabin, seats and restraints.
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 20, 2026.