The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · issued

SR01549SE

Installation, maintenance, and operation of Nightsun SX-16 searchlight and Bell BHT 214-706-003-107 Two Speed Internal Hoist and/or BHT 205-706-091-101 Hoist Provisions and/or AAI 412-830-101 SX-16 Nightsun Kit Two Speed Internal Hoist in accordance with Dart Aerospace USA, Inc. Master Document List MDL-D205-737, Revision A, dated April 4, 2005, or later FAA approved revision. Approved for model 205A-1, serial numbers 30013 and 30121. Held by Dart Aerospace USA INC., which holds 88 approved modifications in all. Last revised May 19, 2005. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Bell Helicopter Textron
Models
205A-1
Type certificate
H1SW
On this site
Bell 205 58 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 21, 2026.