SH437NW
Installation of an electronic weighing system (for monitoring cargo weight). Held by Measurement Systems Intl, which holds 10 approved modifications in all. Last revised August 19, 1980. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France; Eurocopter France
- Models
- SA 318C-Alouette Astazou, SA.315B Alouette III, SA.316B Alouette III, SA.316C Alouette III, SA.319B Alouette III, SE 313B-Alouette II, SE.3160 Alouette III
- Type certificates
- 7H1, H1IN, H1IN, H1IN, H1IN, 7H1, H1IN
- On this site
- Aerospatiale SA315 22 registered
Sud Aviation SA 318 5 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.