EGPWS LINE MAINTENANCE MANUAL
below the antenna beam scan resulting in a blank display. Alternately,
2.2.14 SYSTEM DISPLAY AND ANNUNCIATION
In addition to the aural (voice) alerts provided over the cockpit speaker and interphone system, the EGPWS drives cockpit annunciators and/or Electronic Flight Instrument Systems (EFIS) with system status and alert annunciations. For some EFIS displays, the EGPWS is designed to interface and display the EGPWS terrain video as well as alert annunciations directly onto the EFIS without the use of external relays or annunciators. This is referred to as an “integrated” EFIS display. For other displays (some EFIS and all Radar Indicators), the terrain video is relay switched into the display system externally taking the place of weather radar video. In this case, external switching and annunciation is required. This is referred to as a
Cockpit annunciations can vary somewhat aircraft to aircraft or operator to operator. In addition, several system options are defined by the installation configuration. One of these is EGPWS lamp format. Two formats are provided; Lamp Format 1 and Lamp Format 2. They are described and illustrated in the next page.
2.2.15RUNWAY AWARENESS AND ADVISORY SYSTEM (OPTION FOR MK V AND MK VII ONLY)
The Honeywell Runway Awareness and Advisory System (RAAS) offers significant safety enhancements for aircraft equipped with Honeywell’s MK V or MK VII Enhanced Ground Proximity Warning Systems (EGPWS). Honeywell’s Runway Awareness and Advisory System is a software enhancement hosted in the EGPWS Unit. RAAS uses GPS position data and the Honeywell EGPWS Database to provide aural advisories and alerts that supplement flight crew awareness of position during ground operations and on approach to landing. EGPWS protection and operation is unaltered by the addition of RAAS. RAAS installation is accomplished via a configuration database upload. The installation does require that the EGPWS has a source of GPS data, software
2.2.16 STABILIZED APPROACH MONITOR (OPTION FOR MK V AND MK VII ONLY)
The Stabilized Approach Monitor function offers significant safety enhancements for aircraft equipped with Honeywell’s MK V or MK VII Enhanced Ground Proximity Warning Systems (EGPWS). Honeywell’s Stabilized Approach Monitor is a software enhancement hosted in the EGPWS Unit. Stabilized Approach Monitor uses GPS position data and the Honeywell EGPWS Database to provide aural advisories and alerts that supplement flight crew awareness of unstabilized approach to landing. EGPWS protection and operation is unaltered by the addition of Stabilized Approach Monitor. Stabilized Approach Monitor installation is accomplished via a configuration database upload. The installation does require that the EGPWS has a source of GPS data, software
Stabilized Approach Monitor Maintenance Messages.
2.2.17 ALTIMETER MONITOR (OPTION FOR MK V AND MK VII ONLY)
The Altimeter Monitor function offers significant safety enhancements for aircraft equipped with Honeywell’s MK V or MK VII Enhanced Ground Proximity Warning Systems (EGPWS). Honeywell’s Altimeter Monitor is a software enhancement hosted in the EGPWS Unit. Altimeter Monitor compares Corrected Altitude to the EGPWS blended Geometric Altitude solution to provide aural advisories that supplement flight crew awareness of incorrect altimeter setting or problems with the pressure altitude system. EGPWS protection and operation is unaltered by the addition of Altimeter Monitor. Altimeter Monitor installation is accomplished via a configuration database upload. The
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