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Who holds what · as the FAA records the name

Williams Robert Or Barbara

Holds 21 approved modifications, most of them for the Cessna 150. FAA spelling: Williams Robert or Barbara.

Approved modifications 21 · newest first

2001-12-20SA572CE · Installation of Lycoming 150 or 160 hp Model O-320 engine. · 150, 150A, 150B
1994-03-22SA150NW · Installation of flap gap seals. · 172K, 172A, 172B
1993-12-15SA806CE · Installation of Lycoming engine model O-360-( ) and propellers. · 170B, 170A
1993-04-12SA256NW · Installation of aileron gap seals. · 150, 150A, 150B
1991-04-19SA217RM · Installation of Lycoming O-360-A1A engine (150 hp.), Sensenich76EM8S10-0-56 propeller, revised engine mount and fuel... · 150K, 150L, 150M
1988-12-13SA793CE · Install Lycoming O-360-( ) engine and Hartzell HC-C2YK-1B/7666A-2 or Sensenich 76EM8S5 or McCauley 1A170EFA propeller. · PA-28-161, PA-28-160, PA-28-151
1987-10-19SA750CE · Installation of Lycoming 150 and160 hp Model O-320-( ) engine. (150, 150A, 150C, 150D, 150E, 150F, 150K, 150J,... · 150G, 150, 150A
1985-08-28SA1004CE · Install STOL kit. · 180C, 180K, 180J
1984-04-27SA1100SW · Increase wing leading edge radius. · T210H, 210G, T210G
1984-04-27SA1446SW · Installation of wing leading edge cuff, strut fairings, and vortex generators. · A188, 188
1984-04-27SA1056SW · Revise wing contours, leading edge and redesign landing light deflector plates. · 336, 337B, T337F
1983-04-14SA1371SW · Wing leading cuff, wing tips and upper surface flow fences. · 172, 172A, 172B
1983-01-28SA419CE · Installation of engines, propellers, and dorsal fin, and increase takeoff weight. · PA-23-160, PA-23
1983-01-28SA471CE · Installation of dorsal fin. · PA-23, PA-23-160
1982-04-13SA383GL · Convert to conventional landing gear. · R172K, 175, 175A
1982-04-13SA319GL · Installation of Bolen wheel extenders on Cessna models modified per STCSA296GL. · 172E, 172F (USAF T-41A), 172G
1982-04-13SA318GL · Installation of Bolen wheel extenders on Cessna models modified per STC SA175GL and/or SA268GL. · 150E, 150C, 150
1982-04-13SA268GL · Installation of wheel and ski adapters on Models 150F, G, H, J, K, L, M, 152 aircraft modified per STCSA175GL.... · 150F, 150E, 150D
1982-04-13SA221GL · Installation of wheel replacement type skis, FluiDyne all metal (TSO approved) Model A2000A main skis, FluiDyne... · 150H, 150E, 150M
1982-04-13SA508GL · Installation of FluiDyne A2500A or AT2500A skis. · 175C, R172K, 175
1979-09-05SA1474SW · Installation of 'MASA' 1223000-7 and -8 wing tip. · 305A, 305C, 305D

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.