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

SH751NE

Installation of Teledyne Avionics Power Analyzer and Recorder (PAR). P/N SL17048 is used in the Model AS355F1, P/N SL17039 in the Model AS355F1 and P/N SL17059 in AS355F2 helicopters incorporating Allison 250-C20R engines under STC SH7962SW-D. Held by Aerosonic Corporation, which holds 37 approved modifications in all. Last revised August 14, 2007. System: engine.

What it applies to

Kind of product
Aircraft
Design holder
Eurocopter France; Eurocopter France
Models
AS355F1, AS355F2
Type certificates
H11EU, H11EU
On this site
Aerospatiale AS-355 23 registered
Airbus Helicopters AS355 TwinStar 6 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.