SA172EA
Reinforcement of rearmost seat and installation of additional safety belt. (PA23-250 s/n 27-2000 and up) (N2T-1 S/N 27-2000 AND UP). Held by Hoffman Walter e JR. Last revised January 1, 1960. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.; Timm Aircraft Corporation
- Models
- PA-23-250, N2T-1
- Type certificates
- 1A10, A-2-573
- On this site
- Piper PA-23 Apache and Aztec 1,316 registered
Timm N2 8 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.