SR09370RC-D
Cabin Floor Protector Kits in accordance with Aeronautical Accessories, Inc. Drawing List, Report No. AA-02091. Revision A, dated November 10, 2003, or later DAS approved revisions; and installation per Report No. AA-03090, No Revision, dated September 17, 2003, or later DAS approved revisions. Held by Bell Helicopter Textron INC., which holds 366 approved modifications in all. Last revised February 9, 2011. System: cabin, seats and restraints.
What it applies to
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.