approach reference procedure

overflight reference procedure

take-off reference procedure

noise certification reference procedure

reference procedure

attitude-and-heading reference system / attitude and heading reference system (AHRS)

ground-controlled approach procedure

missed approach procedure (aviation)

missed approach procedure

instrument approach procedure (IAP)

call-out procedure

donning procedure

handover procedure

legal procedure

military standard requisitioning & issue procedure (MILSTRIP, NATO)

observed fire procedure

operational procedure

procedure words (prowords)

prowords (procedure words)

radiotelephone procedure

salvage procedure

security procedure

silence procedure

staff procedure

standard operating procedure(s) (SOP)

standing operating procedure (SOP)

voice procedure

co-decision procedure

materiel test procedure pamphlet

cross-check procedure (CCP)

ditching procedure

safing procedure

unscheduled safing procedure