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

SH253WE

Installation of Hoskins Model CFS-1000, -1001, FT-100, or FT-101 fuel flow indicating system. (206B S/N 2059 AND UP) (206A THRU S/N 253). Held by Sandia Aerospace Corporation, which holds 65 approved modifications in all. Last revised January 30, 1998. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Bell Helicopter Textron (Canada); Bell Helicopter Textron (Canada); Bell Helicopter Textron (Canada); Bell Helicopter Textron (Canada)
Models
206B, 206A, 206L, 206L-1
Type certificates
H2SW, H2SW, H2SW, H2SW
On this site
Bell 206 JetRanger and LongRanger 1,455 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.