Garmin GPS 155XL TSO - Manual (Page 139)

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APPENDIX
G
TROUBLE-
SHOOTING
Q & A
What is the correct missed approach procedure? How do I select the missed
approach holding point?
To comply with TSO specifications, the GPS 155XL will not automatically
sequence to the missed approach holding point. The first waypoint in the missed
approach procedure will be displayed as the next approach waypoint when the pilot
performs a direct-to AFTER crossing the MAP, which the pilot may activate when
authorized. All published missed approach procedures must be flown before activat-
ing navigation to the holding point. To begin the missed approach procedure prior to
the MAP, the GPS APR switch must be released from the ‘ARM’ position to disarm the
approach and begin transition of the CDI to the 1.0 nm scale.
To activate navigation to the first missed approach waypoint after crossing the
MAP, press D, then E. The GPS 155XL will provide direct navigation to the
holding point. If you do not have direct clearance to the holding point, set the GPS
SEQ switch to the HOLD position until you have intercepted the inbound course to
the holding point. See page 83 for more information on missed approaches.
How do I re-select the same approach or activate a new approach after a
missed approach?
After flying all missed approach procedures, you may reactivate the same
approach for another attempt from the active route page. Once you have been given
clearance for another attempt, select the starting waypoint from the active route list
by highlighting the waypoint identifier and pressing
D, followed by E. The GPS
155XL will provide direct navigation to the selected waypoint and rejoin the
approach in sequence from that point on. If you have disarmed the previous
approach, remember to set the GPS APR switch to the ‘ARM’ position.
To activate a new approach, you must select the new procedure from the
approach select page. To view the approach select page, press R and rotate O
until the approach select page appears. Press C and rotate O to highlight the new
approach you want to fly. To activate the new approach, press E and select the IAF,
if necessary. See page 84 for more information on reactivating an approach.
155xlb manual 1/12/99 4:06 PM Page 129