SA2423SO
Installation of Chemical Evacuation System to remove residue from the agricultural spray dispersal system. Held by Paul S Woods, which holds 15 approved modifications in all. Last revised October 14, 1988. System: emergency equipment.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Weatherly Aviation Company Inc.; Weatherly Aviation Company Inc.; Weatherly Aviation Company Inc.; Weatherly Aviation Company Inc.; Weatherly Aviation Company Inc.
- Models
- 620, 620TP, 620B, 620B-TG, 620A
- Type certificates
- A26WE, A26WE, A26WE, A26WE, A26WE
- On this site
- Weatherly Aviation Co Inc 620 29 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 8, 2026.