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Kit ID


Enviro Pressurization System Installation

Provides an approved, alternative Environmental Control System. Note The -553 kit allows for upgrading an existing ENVIRO installation to the new Temperature & Flow control modules & Flow sensor. For all serial numbers for Models 690C, 690D, 695, 695A, 695B, & also for all serial numbers that have not previously complied with earlier modification to Gulfstream Dwg 880718 (Environmental system installation). For conversion from Sundstrand to Enviro, bleed air only.

Issue Date



690C, 690D, 695, 695A, 695B