SA01125SE

Installation of vortex generators on the wings and tail surfaces of the above model aircraft in accordance with Drawing Package MA2171, Revision IR, dated July 17, 2002, and Installation Manual MA2172, Revision IR, dated September 6, 2002, or later FAA approved revision of either of these documents. NOTE: If more than five vortex generators are damaged or missing, the aircraft is not airworthy. Held by Micro Aerodynamics INC, which holds 77 approved modifications in all. Last revised September 25, 2002. System: airframe structure.

What it applies to

Kind of product: Aircraft
Design holder: Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company; Cessna Aircraft Company
Models: 150, 150A, 150B, 150C, 150D, 150E
Type certificates: 3A19, 3A19, 3A19, 3A19, 3A19, 3A19
On this site: Cessna 150 7,994 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.