SA00529SE
Modification, inspection, and repair of the wing to fuselage attachment straps, wing leading edge close outs, and wing station 24.0 ribs. Held by Central Airlines INC, which holds 24 approved modifications in all. Last revised November 17, 1998. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation; Twin Commander Aircraft Corporation
- Models
- 500, 500-A, 500-B, 500-U, 500-S, 560-E, 560-A
- Type certificates
- 6A1, 6A1, 6A1, 6A1, 6A1, 6A1, 6A1
- 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 5, 2026.