ST01159LA
Installation of a nose wheel. Held by Marsh Aviation Company, which holds 5 approved modifications in all. Last revised July 10, 2002. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- California Department of Forestry; Grumman American Aviation Corporation; Marsh Aviation
- Models
- S-2F3AT, TS-2A, S2F-3T
- Type certificates
- T00009LA, A25WE, A51NM
- On this site
- Grumman S-2 18 registered
Marsh Aviation S-2 23 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.