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

SR11809SE

Installation of pilot and Co-Pilot Restraint Systems. Held by Timberline Aerospace. Last revised October 25, 2024. System: cabin, seats and restraints.

What it applies to

Kind of product
Aircraft
Design holder
Timberline Helicopters Inc.; ACE Aeronautics LLC; Blackhawk Mission Equipment; Delta Enterprise; Delta Enterprise; Carson Helicopters Inc.; PJ Helicopters Inc; Billings Flying Service Inc.; SKYDANCE BLACKHAWK OPERATIONS LLC; High Performance Helicopters Corp.; Unical Aviation Inc.; SIXTYHAWK TC LLC; SIXTYHAWK TC LLC; SIXTYHAWK TC LLC; Pickering Aviation Inc.; Pickering Aviation Inc.; Northwest Rotorcraft LLC; CAPITOL HELICOPTERS INC; CAPITOL HELICOPTERS INC; Reeder Flying Service Inc.; Heliqwest International Inc.; Heliqwest International Inc.
Models
UH-60A, UH-60A, UH-60A, EH-60A, UH-60A, UH-60A, UH-60A, UH-60A, UH-60A, UH-60A, UH-60A, EH-60A, HH-60L, UH-60A, EH-60A, UH-60A, UH-60A, HH-60L, UH-60A, UH-60A, EH-60A, UH-60A
Type certificates
R00052SE, R00005RC, R0012DE, R00019AT, R00019AT, R00020AT, R00020LA, R00021LA, R00022LA, R00054SE, R00023LA, R00025LA, R00025LA, R00025LA, R00003AC, R00003AC, R00058SE, R00026LA, R00026LA, R00027LA, R00028LA, R00028LA
On this site
Pickering Aviation Inc UH-60 6 registered
Sikorsky EH-60 33 registered
Sikorsky HH-60 32 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 7, 2026.