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Notice of intent to withdrawal cancellation of TSO-C122a.

This notice announces the FAA's withdrawal of the notice of intent to cancel Technical Standard Order (TSO-)C122a, "Equipment That Prevent Blocked Channels Used in Two-Way Radio Communications Due to Simultaneous Transmissions," dated June 18, 2012. Retaining TSO-C122a as an active TSO allows the continued design or production of articles authorized under the existing TSO approval. This withdrawal reflects the FAA's decision to maintain support for existing authorizations under TSO-C122a.

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