SH3324NM
Installation of an Allison 250-C30M engine, an engine scavenge oil filter, a redesignated exhaust stack (RMH configuration) and engine cowling(carbon fiber), an option of deleting an auxiliary oil cooler (P/N 20006A), and a relocation of the engine ignition exciter box on the engine compartment deck. Held by Soloy LLC, which holds 10 approved modifications in all. Last revised November 10, 2004. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Eurocopter France; Eurocopter France; Eurocopter France
- Models
- AS-350B, AS-350BA, AS-350D
- Type certificates
- H9EU, H9EU, H9EU
- On this site
- Airbus Helicopters AS350 AStar (Écureuil), now H125 891 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 9, 2026.