SH1800SW
Install reclining passenger seat in forward left hand position. Held by Ward Intl Aircraft Service, which holds 58 approved modifications in all. Last revised February 1, 1974. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Eurocopter France; Eurocopter France
- Models
- SE.3160 Alouette III, SA.316B Alouette III
- Type certificates
- H1IN, H1IN
- 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.