SR00230SE
Fabrication and installation of an external cargo support beam, upper cargo hook and load cell system. Held by Columbia Helicopters INC, which holds 66 approved modifications in all. Last revised September 5, 1995. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Erickson Air-Crane Company
- Models
- CH-54A
- Type certificate
- H40NM
- On this site
- Helicopter Transport Services CH-54 5 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 22, 2026.