Text in force at CS29-12: from CS29-0, effective 14 Nov 2003.
(a) A placard m eeting the requirem ents of this paragraph m ust be i nstalled on or near the magnetic direction indicator.
(b) The placard m ust show the calibration of the instrument in level flig ht with th e en gines operating.
(c) The placard must state whether the calibration was made with radio receivers on or off.
(d) Each calib ration read ing m ust b e in terms of m agnetic headi ng i n not m ore t han 45° increments.
ED Decision 2003/016/RM · Source