SA1545WE
Installation of cabin interior arrangement, air conditioning equipment, electrically operated air compressors. Held by Aircraft Technical Service INC, which holds 15 approved modifications in all. Last revised June 25, 1968. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The de Havilland Aircraft Co. Ltd (England); The de Havilland Aircraft Co. Ltd (England); The de Havilland Aircraft Co. Ltd (England)
- Models
- DH 114 Heron; Series 2DA, DH 114 Heron; Series 2X, DH 114 Heron; Series 2A
- Type certificates
- A-816, A-816, A-816
- 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.