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MS Symptoms Early

Acronym: HAC

Category: NASA Acronyms

Meaning / Stands for:

	Acronym	Meaning
	OM	Optical Master
	MCC	Main Combustion Chamber
	DDT&E	Design
	UNDK	Undock
	SU	Support Unit
	DRS	Digital Range Safety
	NWSA	Nose Wheel Steering Amplifier
	SMU	Speaker/microphone Unit
	DCOP	Detailed Checkout Procedures
	SPAN	Spacecraft Analysis