SA02033AT (PAGE 5)
Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line (47J series w stc's SH4-235SW, SH4-826SW or SH479SW). Held by M-20 Oil Separators LLC, which holds 9 approved modifications in all. Last revised July 24, 2008. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Arizona Aerospace Foundation; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Bell Helicopter Textron; Brantly International Inc.; Brantly International Inc.; Brantly International Inc.; Brantly International Inc.; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; Consolidated Vultee Aircraft Corporation Stinson Division; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; The Enstrom Helicopter Corporation; Funk Aircraft Company; Hiller Aircraft Corporation; Hiller Aircraft Corporation; Hiller Aviation; Hiller Aviation; Hiller Aviation; Hiller Aviation; Hiller Aviation; Hiller Aviation; Hiller Aviation; McClish Thomas H.; McClish Thomas H.; McClish Thomas H.; Omega Aircraft Corporation; Robinson Helicopter Company; Robinson Helicopter Company; Robinson Helicopter Company; Robinson Helicopter Company; Robinson Helicopter Company; Scheutzow Helicopter Corporation; Schweizer Aircraft Corporation; Schweizer Aircraft Corporation; Schweizer Aircraft Corporation; Schweizer Aircraft Corporation; STOL Aircraft Corporation; Swift Museum Foundation Inc.; Swift Museum Foundation Inc.; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Aircraft Company; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Taylorcraft Inc.; Tiger Aircraft LLC; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; Univair Aircraft Corporation; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company; The Waco Aircraft Company
- Models
- DC-65, 47J, 47J-2, 47J-2A, 47K, 47G-2A, 47G-2A-1, 47G-3, 47G-3B, 47G-3B-1, 47G-4, 47G-4A, 47B, 47B3, 47D, 47D1, 47E, 47G, 47G-2, 47H-1, B-2, B-2A, B-2B, 305, 10, HW-75, V-77, SM-2AA, SM-1, SM-2AC, SM-2ACS, SM-8B, SM-8A, SM-7B (Army L-12A), SM-6000 Airliner, SM-6000-B, JR. S, W, JR. R, U, JR. SR, SR-2, JR. SR-4, SR-5, SR-5A (Army L-12), SR-5B, SR-5C, SR-5E, A, SR-6, SR-6A, SR-6B, SR-6C, SR-7A, SR-7B, SR-7C, SR-8A, SR-8B (Army UC-81), SR-8C (Army UC-81L), SR-8D (Army UC-81B), SR-9A, SR-9B (Army UC-81N), SR-9C (Army UC-81C), SR-9D (Army UC-81G), SR-9DM, SR-9E (Army UC-81J), SR-9EM (Army...
- Type certificates
- A-746, 2H1, 2H1, 2H1, 2H1, 2H3, 2H3, 2H3, 2H3, 2H3, 2H3, 2H3, H-1, H-1, H-1, H-1, H-1, H-1, H-1, H-1, 2H2, 2H2, 2H2, H3SW, A-709, A-709, A-774, ATC 145, ATC 16 Stinson, ATC 194, ATC 194, ATC 294, ATC 295, ATC 329, ATC 335, ATC 420, ATC 423, ATC 435, ATC 457, ATC 484, ATC 510, ATC 510, ATC 519, ATC 530, ATC 530, ATC 530, ATC 530, ATC 530, ATC 556, ATC 580, ATC 580, ATC 580, ATC 580, ATC 594, ATC 594, ATC 594, ATC 608, ATC 608, ATC 608, ATC 609, ATC 621, ATC 621, ATC 621, ATC 625, ATC 625, ATC 625, ATC 625, TC 2-496, TC 678, TC 678, TC 678, TC 679, TC 679, TC 679, H1CE, H1CE, H1CE, H1CE, H1CE, H1CE, H1CE, H1CE, H1CE, H1CE, H1CE, TC 2-564, 4H11, 4H11, 4H10, 6H1, 6H1, 6H2, 6H2, H1WE, H1WE, A-715, A-715, A-715, 1H14, H10WE, H10WE, H10WE, H10WE, H11NM, H1GL, 4H12, 4H12, 4H12, 4H12, A6EA, A-766, A-766, 1A9, 1A9, 1A9, 1A9, 1A9, 1A9, 1A9, 1A9, 1A9, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-696, A-699, A-699, A-699, A-699, A-699, A-699, A-699, A-699, A16EA, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, A12SW, A-767, A-767, A-767, A-767, A-767, A-787, A-787, A-787, A-787, A-787, A-787, A-787, A-533, A-533, A-642, A-642, ATC-11, ATC 123, ATC 13 Waco, ATC 168, ATC 240, ATC 257, ATC 26 Waco, ATC 311, ATC 313, ATC 337, ATC 345, ATC 362, ATC 41, ATC 412, ATC 416, ATC 42 Waco, ATC 453, ATC 464, ATC 466, ATC 468, ATC 473, ATC 479, ATC 499, ATC 502, ATC 511, ATC 528, ATC 528, ATC 528, ATC 528, ATC 528, ATC 528, ATC 538, ATC 538, ATC 538, ATC 542, ATC 546, ATC 568, ATC 569, ATC 569, ATC 575, ATC 575, ATC 586, ATC 586, ATC 586, ATC 586, ATC 586, ATC 597, ATC 639, ATC 648, ATC 648, ATC 648, TC 598, TC 598, TC 626, TC 626, TC 677, TC 714, TC 714
- On this site
- Bell 47 478 registered
Hiller UH-12 217 registered
Hughes 269 300 series helicopters 207 registered
Robinson R22 817 registered
Stinson HW75 23 registered
Stinson JR. S 12 registered
Stinson JR. SR 9 registered
Stinson SR-10 17 registered
Taylorcraft BC-65 109 registered
Taylorcraft BC12 BC-12D 1,224 registered
Taylorcraft BCS12 17 registered
Taylorcraft BF-65 9 registered
Taylorcraft BF12 14 registered
Taylorcraft DC-65 49 registered
Waco UPF-7 189 registered
Waco VKS-7 12 registered
Waco YKS-6 15 registered
Waco YKS-7 21 registered
Waco YQC-6 5 registered
Waco ZKS-7 5 registered
Waco ZQC-6 7 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 30, 2026.