SA702GL
Installation of a cooling shroud on engine driven dry air pumps. Held by Mcfarlane Aviation INC, which holds 16 approved modifications in all. Last revised November 21, 2017. System: engine.
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
- 172K, 172L, 172M, 172N, 172P, 172Q
- Type certificates
- 3A12, 3A12, 3A12, 3A12, 3A12, 3A12
- On this site
- Cessna 172 Skyhawk 20,670 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.