SA1629SW
Modify seat to rigid back and relocate legs to accommodate installation with plush side panels for headrest for aft facing installation. Held by Ward Intl Aircraft Service, which holds 58 approved modifications in all. Last revised March 20, 1973. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Maryland Air Industries Inc.
- Models
- F-27
- Type certificate
- 7A1
- 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.