SA02168AK (PG 1)
Installation of hourmeter airspeed switch. For unpressurized aircraft only. Pressurized aircraft must have pressurization system deactivated. Held by Avalaska INC, which holds 8 approved modifications in all. Last revised March 23, 2001. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Arizona Aerospace Foundation; Arizona Aerospace Foundation; Arizona Aerospace Foundation; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; 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; EADS-PZL Warszawa-Okecie S.A.; Executive Airlines Inc.; Executive Airlines Inc.; Executive Airlines Inc.; Executive Airlines Inc.; Executive Airlines Inc.; Executive Airlines Inc.; Executive Airlines Inc.; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Hawker Beechcraft Corporation; Lester Branchflower; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Prop-Jets Inc.; Prop-Jets Inc.; Prop-Jets Inc.; Prop-Jets Inc.; Prop-Jets Inc.; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Regal Air Inc.; Ryan Aeronautical Company; Sky Enterprises Inc.; Sky International Inc.; Sky International Inc.; Sky International Inc.; Slingsby Aviation Ltd.; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; SOCATA - Groupe Aerospatiale; Spinks Industries M. H. Spinks Sr.
- Models
- DC-65, DCO-65, DL-65, F337E, F337F, F337G, F337H, FT337E, FT337F, FT337GP, FT337HP, 10A, L-5, L-5B, L-5C, L-5D, L-5E, L-5E-1, PZL-104 WILGA 80, Army L-1, Army L-1A, Army L-1B, Army L-1C, Army L-1D, Army L-1E, Army L-1F, 50, B50, C50, D50, D50A, D50B, D50C, D50E, D50E-5990, E50, F50, G50, H50, J50, Army L-13 Series, PA-38-112, PA-44-180, PA-44-180T, PA-31, PA-31-300, PA-31-325, PA-46-310P, PA-32-260, PA-32-300, PA-32-301, PA-32-301T, PA-32R-300, PA-32R-301 (HP), PA-32R-301 (SP), PA-32R-301T, PA-32RT-300, PA-32RT-300T, PA-32S-300, PA-34-200, PA-34-200T, PA-34-220T, PA-36-285, PA-36-300, 200,...
- Type certificates
- A-746, A-746, A-746, A23EU, A23EU, A23EU, A23EU, A23EU, A23EU, A23EU, A23EU, A-738, A-764, A-764, A-764, A-764, A-764, A-764, A55EU, LTC-26, LTC-26, LTC-26, LTC-26, LTC-26, LTC-26, LTC-26, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, 5A4, TC AR-10, A18SO, A19SO, A19SO, A20SO, A20SO, A20SO, A25SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A7SO, A7SO, A7SO, A9SO, A9SO, 3A18, 3A18, 3A18, 3A18, 3A18, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A15, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 3A16, 5A3, 5A3, 5A3, A-777, A-777, A-777, A-777, A-777, A-777, A-777, A-777, A-777, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A1CE, A23CE, A23CE, A23CE, A23CE, A29CE, A30CE, 3A14, 3A14, 5A5, 5A5, 5A5, 5A5, A-749, A-769, A22NM, A22NM, A22NM, A73EU, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, 7A14, A17SO, A51EU, A51EU, A51EU, A51EU, A51EU, A-794
- On this site
- Beechcraft 35 Bonanza and Debonair 1,078 registered
Beechcraft 58 Baron 1,295 registered
Beechcraft 95 Travel Air and Baron 55 1,245 registered
Beechcraft A23 329 registered
Beechcraft A36 Bonanza 2,530 registered
Beechcraft B36 Bonanza 308 registered
Cessna Ector 305 20 registered
Daher (Socata) TB 10 53 registered
Daher (Socata) TB-20 200 registered
Daher (Socata) TB200 11 registered
Daher (Socata) TB21 57 registered
Piper PA-31 Navajo and Chieftain 935 registered
Piper PA-32 Cherokee Six, Lance and Saratoga 3,917 registered
Piper PA-34 Seneca 998 registered
Piper PA-36 Pawnee Brave 99 registered
Piper PA-38 Tomahawk 442 registered
Piper PA-44 Seminole 599 registered
Piper PA-46 Malibu, Mirage, Matrix and M-Class 1,692 registered
Ryan Aeronautical ST3 116 registered
S.O.C.A.T.A. RALLYE 150 10 registered
S.O.C.A.T.A. RALLYE 235 16 registered
Slingsby T67 15 registered
Stinson 10 89 registered
Stinson L-5 125 registered
Taylorcraft DC-65 49 registered
Taylorcraft DCO-65 195 registered
Wsk-Pzl Warzawa-Okecie PZL-104 16 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 7, 2026.