Sierra Industries INC
Holds 34 approved modifications, most of them for the Piper PA-34 Seneca. FAA spelling: Sierra Industries Inc.
Approved modifications 34 · newest first
Piper PA-34 Seneca 4Cessna A188 3Cessna T-310 2Cessna 188 1Cessna 550 Citation II 1Cessna 560 Citation V, Ultra, Encore and Excel 1Cessna P210 Pressurized Centurion 1Cessna T210 Turbo Centurion 1Cessna TU206 1Cessna U206 Stationair 1Douglas DC-3 1Piper PA-23 Apache and Aztec 1
2017-07-31SA142NW · Normal and restricted category installation of recontoured wing leading edge and stall fences. Options: wing strut... · 188, 188A, A188
2017-07-31SA438NW · Addition of Fowler wing flaps aileron droop system, elevator trim spring and new flap actuation system. · 421C
2017-07-31SA80RM · Installation of extended range fuel tank and relocation of aft pressure bulkhead. · 500, 550
2017-07-31SA864NW · Installation of RCA digital weather radar system. · TU206F, TU206G, U206F
2017-07-31SA474NW · Replace original split flaps with Fowler flaps. · 340, 340A
2017-07-31SA48NW · Installation of fowler flaps, flap actuated drooped ailerons, flap actuated elevator trim and anti- servo rudder trim tab. · 414
2017-07-31SA83RM · Increased ramp and takeoff weights for restricted category operation. · 500
2017-07-31SA510NW · Installation of Cessna fuel tank cap assembly. · PA-34-200, PA-34-200T
2017-07-31SA672NW · Installation of Hartzell HC-C3YF-1RF/F9587C-17S propeller on Continental IO-520-D engine. · A188A
2017-07-31SA2119WE · Installation of recontoured wing leading edge, stall fences, wing tips and positive aileron seals. · 150, 150A, 150B
2017-07-31SA534NW · Installation of wing tip fuel tanks of 17 gal. Capacity(each). · PA-34-200T
2017-07-31SA292NW · Installation of cooling louvers on top of both (L.H. and R.H.) nacelle accessory sections. · PA-34-200, PA-34-200T
2017-07-31SA286NW · Installation of drooped ailerons in flaps down mode, recontoured wing leading edge, stall fences, aileron centering... · 336
2017-07-31SA18NW · Installation of Fowler flaps, flap actuated drooped ailerons, flap actuated elevator trim and anti- servo rudder trim tab. · 421, 421A, 421B
2017-07-31SA645NW · Installation of Eagle performance system, including recontoured wing leading edge, wing tip extension, increased... · 500
2017-07-31SA592NW · Installation of Fowler flaps. · 310G, 310P, 310Q
2017-07-31SA311NW · Installation of full span flaps by removing aileron and changing the deployment route of all flaps. · PA-32-300
2017-07-31SA154NW · Installation of full span flaps by removing aileron and changing deployment route of all flaps. · PA-34-200, PA-34-200T
2017-07-31SA503NW · Removal of ailerons and installation of full span flaps and spoiler roll control system. · V35, V35A, V35B
2017-07-31SA95RM · Limited to Serial Number P-8, Registration N822D only. Installation of Nose Boom. · 60
2017-07-31SA29NW · Installation of Fowler Flap actuated drooped ailerons, flap actuated elevator trim and anti- servo rudder trim tab.... · 401, 401A, 401B
2017-07-31SA707NW · Installation of weather radar system. · 36, A36, S35
2017-07-31SA152RM · Installation of extended range fuel tank and relocation of aft pressure bulkhead. · 501
2017-07-31SA215RM · Installation of extended width cabin door. · 501, 551
2017-07-31SA760NW · Installation of RCA digital weather radar system. · 210L, 210M, 210N
2017-07-31SA2312WE · Installation of leading edge cuffs, stall fences, stall strips drooped ailerons, flap actuated stabilator trim... · PA-30, PA-39
2017-07-14SA1513WE · Installation of flap actuated aileron droop system recontoured wing leading edge and flap actuated elevator trim... · 206
2010-09-07ST02010LA · Installation of a Kollsman General Aviation Vision System in a Cessna Model 550 airplane in FAA-Approved U.S.... · 550
2005-09-08SA689NW · Installation of transponder identification switch in the left hand control wheel. · 500
2005-09-08SA444NW · Installation of fowler flaps. · 310R, T310Q, T310R
2005-07-21SA2340WE · Installation of recontoured wing leading edge, drooped ailerons in flaps down mode, wing strut fillet, stall fences,... · A188A, A188, 188B
2005-07-21SA174RM · Installation of extended width cabin door. · 500, 550, 560
1999-12-01SA2-17 · Installation of a 17-1/4 inch diameter camera mount ring. Approved for serial number 23-118 ONLY. · PA-23
1999-12-01SA2-7 · Installation of heater and 200-ampere generator. Approved for installation on serial number 6313 ONLY. · DC3A-S1C3G
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.