SR02279AK
Installation of dual Rockwell Collins FDS 2000 flight displays, dual AHS 3000 attitude and heading reference systems, dual Garmin GNS 530 navigation systems and supporting avionics equipment. Held by Croman Corporation, which holds 42 approved modifications in all. Last revised April 6, 2023. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Sikorsky Aircraft; Sikorsky Aircraft; Sikorsky Aircraft; Sikorsky Aircraft
- Models
- S-61L, S-61N, S-61NM, S-61R
- Type certificates
- 1H15, 1H15, 1H15, 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.