D. On LH 001-013, 051-060, 082, 083; AF 101-120, 123-180, 183, 184, 191-198; AZ 221-225, 231-233, 281; SN 301-350; AT; GN; IB; MD; and VM airplanes not incorporating SB 55-2027, install VOR antenna access door on fin tip.
E. On LH 014-050, 061-081, 084-099; AF 121, 122, 181, 182, 185-190, 199; AZ 226-230, 234-280, 282-299; SN 351- 399, plus AF, AT, AZ, GN, IB, LH, MD, SN and VM airplanes incorporating SB 55-2027, install fin tip (Ref 55-30-02 R/I).
F. Test antenna for satisfactory operation as follows:
(1)
Disconnect coaxial connectors DB63A and DB64A from antenna switches No. 1 and No. 2.
(2)
Provide electrical power (Ref 24-22-00).
(3)
Position AP/FD MSP mode selector to HDG.
(4)
Energize flight interphone system and VOR/ILS navigation systems No. 1 and No. 2.
(5)
Tune VOR/ILS navigation systems No. 1 and No. 2 to local VOR station and listen for identification code on flight interphone system.
(6)
Turn off flight interphone and VOR/ILS navigation systems.
(7)
Remove electrical power if no longer required (Ref 24-22-00).
EFFECTIVITY
ALL 14 Page 401 Sep 25/9434-31-03
VOR Antenna Installation
Figure 401 (Sheet 1)
EFFECTIVITY LH 001-013,051-060,082,083; AF 101-120,123-180,183,184,191-198; AZ 221-225,231-234,281; AT,
799 Page 402 GN,IB,MD,AND VM ALL; SN 301-350 Sep 25/94
34-31-03
FIN TIP
FWD
LIGHTNING DIVERTER STRIP
FIN TIP
VOR ANTENNA SCREWS FWD
SCREWS (2 PLACES) CONNECTOR COAX
Figure 401 (Sheet 2) VOR Antenna Installation
EFFECTIVITY
LH 014-050,061-081,084-099;
AF 121,122,181,182,185-190,
199; AZ 226-230,235-280, 799 Page 403
34-31-03
282-299; SN 351-399 Sep 25/94
(8) Connect coaxial connectors DB63A and DB64A to antenna switches No. 1 and No. 2.
EFFECTIVITY
ALL 03 Page 404 Sep 25/9434-31-03
LOCALIZER ANTENNA - REMOVAL/INSTALLATION
________________________________________
1. General
_______
A. Two localizer antennas are located in the nose radome as shown in figure
401. The lower localizer antenna is for VOR/ILS receivers 1 and 2 while VOR/ILS receiver 3 is fed from the upper localizer antenna. Each antenna is secured to the mounting structure by screws and has provisions for connecting two coaxial cables. The upper antenna has only one coaxial cable connected which is for VOR/ILS receiver 3.
2. Referenced Procedures
_____________________
A. 24-22-00, Maintenance Practices (Apply Power)
3. Remove Localizer Antenna (Fig. 401)
________________________
WARNING: CHECK THAT POWER IS OFF ON WEATHER RADAR AND ANTENNA IS NOT
_______ SCANNING TO AVOID CONTACT WITH HIGH-FREQUENCY RADAR SIGNALS OR PHYSICAL CONTACT WITH SCANNING ANTENNA.
A. Release six latches which secure nose radome using a 5/16-inch (Allen) wrench; depress each fastener and turn counterclockwise.
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