Honeywell

MK XXII EGPWS Installation Manual

2.3.6 GPS Antenna location

The antenna must be mounted on top of the fuselage. Avoid mounting the antenna near any projections such as the rotor mast, or engine exhaust, where shadows could occur or high heat could damage the antenna. It is recommended that there be a separation of at least 3 feet between the GPS antenna and any VHF Comm antenna on the aircraft. The antenna baseplate must be level within ± 5° in both axis when the aircraft is level (level is defined as the aircraft attitude required when weighing the aircraft for weight and balance). If the antenna is tilted more than 5° or is mounted close to other objects that shadow it, loss of some of the satellites will occur and system performance may be degraded. See manufacturer’s drawing in Appendix D for specifications of antenna, antenna cables, and connector information.

2.3.7 GPS Antenna Installat ion

Refer to manufacturer’s procedures or applicable STC documentation.

2.3.8 OAT Sensor Location

The OAT sensor (CIC 05257) should be mounted on the underside (belly) of the aircraft or other convenient location meeting the following conditions. Avoid mounting the sensor where it can be affected by direct sunlight, or exhaust gases from engines or heaters. The probe tip should extend beyond the aircraft boundary layer into the turbulent airflow. See manufacturer’s drawing in Appendix D for specifications.

2.3.9 OAT Sensor Installatio n

Refer to manufacturer’s procedures or applicable STC documentation.

2.3.10 Cockpit Annunciators / Switches

This section provides information for selecting, locating and mounting of the MK XXII EGPWS Lighted annunciators / switches. NOTE: The nomenclature given for each lamp is an example only. Other manufacturers use nomenclature that is also acceptable. Refer to Honeywell Product Specification 965- 1590-601 for additional information and for electrical loads specification

CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225

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Honeywell MKXXII GPS Antenna location, GPS Antenna Installat ion, OAT Sensor Location, OAT Sensor Installatio n