February 2016 Issue

A Regulatory Step Forward, and Then Back

The FAA turned a lot of heads with its official policy statement, PS-ACE-23-08, authorizing the installation of electronic attitude instruments for one-and-only primary use. Using rare language thatís sympathetic to owners burdened by the high cost of iron gyro upkeep, the agency offers leniency for shops to sign off the installation as a minor alteration, which also includes yanking out the vacuum system even if itís required per the aircraft type certificate. According to the policy, no field approvals, no additional STCs, no backup gyro or time-consuming paperwork is required. Progress at last, or so it seemed.

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