SH4173NM
Installation of Simplex Model 7600 modular electrical system. (US ARMY OH-13E M74A). Held by Simplex Manufacturing Company, which holds 60 approved modifications in all. Last revised February 18, 1988. System: electrical power.
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; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; FH1100 Manufacturing Corporation; McCreary Gifton; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; MD Helicopter Inc.; Rogerson Hiller Corporation; Rogerson Hiller Corporation; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Rotorcraft Development Corporation; Schweizer Aircraft Corporation; Schweizer Aircraft Corporation; Schweizer Aircraft Corporation; Schweizer Aircraft Corporation; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Scotts-Bell 47 Inc; Siam Hiller Holdings Inc.; Siam Hiller Holdings Inc.
- Models
- 206, 206A, 206A-1 (OH-58A), 206B, 206B-1, 206L, 206L-1, 206L-3, 206L-4, SA.315B Alouette III, SA.316B Alouette III, SA.316C Alouette III, SE.3160 Alouette III, AS-350B, AS-350C, AS-350D, AS-350D1, 1100, OH-13E, 369, 369 Series, 369A, 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, UH-12E, UH-12E-L, OH-58A, OH-58A+, OH-58C, 269A, 269A-1, 269B, 269C, 47J, 47J-2, 47J-2A, 47K, 47G-2A, 47G-2A-1, 47G-3, 47G-3B, 47G-3B-1, 47G-3B-2, 47G-3B-2A, 47G-4, 47G-4A, 47G-5, 47G-5A, 47, 47B, 47B3, 47D, 47D1, 47E, 47G, 47G-2, 47H-1, UH-12E, UH-12E-L
- Type certificates
- H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H2SW, H1IN, H1IN, H1IN, H1IN, H9EU, H9EU, H9EU, H9EU, H2WE, H7SW, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, H3WE, 4H11, 4H11, R00006DE, R00006DE, R00006DE, 4H12, 4H12, 4H12, 4H12, 2H1, 2H1, 2H1, 2H1, 2H3, 2H3, 2H3, 2H3, 2H3, 2H3, 2H3, 2H3, 2H3, 2H3, 2H3, H-1, H-1, H-1, H-1, H-1, H-1, H-1, H-1, H-1, 4H11, 4H11
- On this site
- Aerospatiale SA315 22 registered
Airbus Helicopters AS350 AStar (Écureuil), now H125 891 registered
Bell-Carson 47 5 registered
Bell 206 JetRanger and LongRanger 1,455 registered
Bell 47 478 registered
Bell OH-58 329 registered
Hiller UH-12 217 registered
Hughes 269 300 series helicopters 207 registered
Hughes 369 500 series helicopters 123 registered
Md Helicopters Inc 369 108 registered
Md Helicopters Inc 500 14 registered
Texas Helicopter Corp OH-13 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 20, 2026.