Install Transponder
100753-00
Use the following procedure to install the Transponder. This task is applicable to the Garmin 796 configuration only.
Applicable Aircraft Serial Numbers
All
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
None
Parts Required
00667-00 (MOUNTING TRAY, TRANSPONDER, TY21 &TY91)
00745-00-01 (TRANSPONDER UNIT, TT22)
9025A009 (NUT, PLAIN, HEX, 316SS, 8-32 X .125)
Aircraft System and Number
10—Instruments (and Avionics)
Safety Equipment
As Needed
Consumables
LOCTITE 243 (THREADLOCKER, PRIMERLESS, OIL TOL, REMOVABLE MED STR, BLUE)
LOCTITE 222 (THREADLOCKER, ACRYLIC, REMOVABLE LOW STR, PURPLE)
As Needed:
TY24MX (CABLE TIE, NYLON 6-6, 30LB, 5.50, TY-RAP)
Reference SAFO 17002 as needed while performing transponder and VHF maintenance tasks.
Task Instructions
1. Install 2x Mounting Brackets. (Figure 268)
a. Secure Mounting Bracket onto 3x studs using 3x 8-32 Hex Nuts.
b. Apply blue threadlocker (LOCTITE 243) and torque to 7-9 in-lbs.
c. Repeat for second Mounting Bracket.
2. Install Transponder.
a. Transponder connector D9041J from fuselage wire harness to the Transponder.
b. Connect the transponder coax cable D9008J1 to the Transponder antenna output.
c. Place the Transponder into the inboard Mounting Tray Tab and secure with Mounting Tray Latch as shown in Figure 267.
Note:
Reference SAFO 17002 as needed while performing transponder maintenance tasks.
Configure the transponder per 00560-00-AQ-TRIG TT21/TT22 Mode S Transponder Installation Manual, section 6 and perform an altitude encoder calibration per section 6.2.2.
3. If previously removed, secure the wire harness branches to connectors D9018P and D9041J to the nearest tie mount on the Nose Landing Gear Box with a Cable-Tie (TY24MX).
4. If previously removed, secure the coax cables D9008J1 and D9057P1 to the nearest tie mount forward of the left hand Landing and Tax Light with a Cable-Tie (TY24MX).
5. If previously removed, re-install the left hand Landing and Taxi Light. (Install Landing and Taxi Lights)
6. Re-install Left Instrument Top Panel. (Left Instrument Panel Top Panel Installation)
7. Re-install hood shell. Slide it forward into the clip hole and then pres it down on the instrument cluster.
Verification Method
Perform a transponder correspondence test. See 00560-00-AQ--TRiG TT21/TT22 Mode S Transponder Installation Manual.