SR04637CH
Replacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control Panel. Held by Airwolf Aerospace LLC, which holds 5 approved modifications in all. Last revised January 11, 2024. System: electric propulsion.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bell Helicopter Textron Canada Limited; Bell Helicopter Textron Canada Limited; Bell Helicopter Textron Canada Limited; Bell Helicopter Textron Canada Limited; Bell Helicopter Textron Canada Limited; Bell Helicopter Textron Canada Limited; Bell Helicopter Textron Canada Limited; Bell Helicopter Textron Canada Limited; Bell Helicopter Textron Canada Limited; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; MD Helicopters Inc.; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Airbus Helicopters; Siam Hiller Holdings Inc.
- Models
- 206, 206A, 206A-1 (OH-58A), 206B, 206B-1, 206L, 206L-1, 206L-3, 206L-4, 369, 369A, 369H, 369HS, 369HE, 369D, 369E, 369F, 369FF, 500N, TH-28, 480, 480B, EC120B, AS350C, AS350D, AS350D1, AS350B, AS350B1, AS350B2, AS350BA, AS350B3, EC 130 B4, EC 130 T2, AS355E, AS355F, AS355F1, AS355F2, AS355N, UH-12E
- Type certificates
- H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H1CE, H1CE, H1CE, R0001RD, H9EU, H9EU, H9EU, H9EU, H9EU, H9EU, H9EU, H9EU, H9EU, H9EU, H11EU, H11EU, H11EU, H11EU, H11EU, 4H11
- On this site
- Aerospatiale AS-355 23 registered
Airbus Helicopters AS350 AStar (Écureuil), now H125 891 registered
Airbus Helicopters AS355 TwinStar 6 registered
Airbus Helicopters EC 130 now H130 310 registered
Airbus Helicopters EC120 71 registered
Bell 206 JetRanger and LongRanger 1,454 registered
Enstrom Helicopter Corp 480 73 registered
Hiller UH-12 217 registered
Hughes 369 500 series helicopters 123 registered
Md Helicopters Inc 369 108 registered
Md Helicopters Inc 500 14 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 23, 2026.