SA1400SO
Remove drain plug, Cessna Part Number MS20913-10 or MS20913-ID, from the fuel selector valve, and replace with CAV-110D (MT-1077) or CAV-110H-4D (CM-1077) (See page 3 for model serial numbers.). Held by Saf-Air Products INC., which holds 10 approved modifications in all. Last revised September 28, 2020. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company
- Models
- 177, 177A, 177B
- Type certificates
- A13CE, A13CE, A13CE
- On this site
- Cessna 177 Cardinal 2,158 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 12, 2026.