SA10594SC
Modification of the Monroe Automotive Equipment Co. (MAECO) Shimmy Dampener. Held by Knots 2U, LTD, which holds 50 approved modifications in all. Last revised August 11, 2017. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- 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.; 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.
- Models
- PA-24, PA-24-250, PA-24-260, PA-24-400, PA-28-140, PA-28-150, PA-28-151, PA-28-160, PA-28-161, PA-28-180, PA-28-181, PA-28-201T, PA-28-235, PA-28-236, PA-28R-180, PA-28R-200, PA-28R-201, PA-28R-201T, PA-28RT-201, PA-28RT-201T, PA-30, PA-39, PA-31, PA-31-300, PA-31-325, PA-31-350, 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-31P, PA-31P-350, PA-31T, PA-31T1, PA-31T2
- Type certificates
- 1A15, 1A15, 1A15, 1A15, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, A1EA, A1EA, A20SO, A20SO, A20SO, A20SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A3SO, A8EA, A8EA, A8EA, A8EA, A8EA
- On this site
- Piper PA-24 Comanche 2,428 registered
Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,637 registered
Piper PA-30 Twin Comanche 879 registered
Piper PA-31 Navajo and Chieftain 935 registered
Piper PA-32 Cherokee Six, Lance and Saratoga 3,917 registered
Piper PA-39 Twin Comanche C/R 82 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 21, 2026.