Installation of the Multi Mode Receiver

TASK 34-36-31-400-001-D
Installation of the Multi Mode Receiver

ZONE: 121
ZONE: 122

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
121	AVIONICS COMPARTMENT
122	AVIONICS COMPARTMENT
811

B. Referenced Information

REFERENCE	DESIGNATION
TASK 22-97-00-710-001-A	Operational Test of the LAND CAT III Capability
TASK 34-36-00-740-006-A	BITE Test of the MMR
Multi Mode Receiver ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 34-36-31-010-061-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Make sure that the access platform is in position at the access door 811 in zone 122.
(2) Make sure that the access door 811 is open.

Subtask 34-36-31-865-066-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 40RT1
49VU	NAV/MMR/1	42RT1	G12
FOR FIN: 40RT2
121VU	COM NAV/MMR/2	42RT2	L07

4. Procedure
Subtask 34-36-31-420-055-A ** ON A/C NOT FOR ALL

A. Installation of the Multi Mode Receiver (40RT1, 40RT2)
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking caps from the electrical connectors (2).
(4) Make sure that the electrical connectors (2) are clean and in the correct condition.
(5) Install the Multi Mode Receiver (1) on its rack (3).
(6) Push the Multi Mode Receiver (1) on its rack (3) to connect the electrical connectors (2).
(7) Engage the nuts (4) on the lugs (5) and tighten.

Subtask 34-36-31-865-067-A ** ON A/C NOT FOR ALL

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 40RT1
49VU	NAV/MMR/1	42RT1	G12
FOR FIN: 40RT2
121VU	COM NAV/MMR/2	42RT2	L07

Subtask 34-36-31-740-055-B ** ON A/C NOT FOR ALL

C. BITE test of the Multi Mode Receiver
(1) Do the BITE test of the Multi Mode Receiver (Ref. AMM TASK 34-36-00-740-006)

NOTE: If the airline operates the aircraft in CAT 3 conditions, do the LAND CAT III capability test
(Ref. AMM TASK 22-97-00-710-001).

(2) As an alternative procedure, without the CFDS, you can do the operational test of the ILS (Ref. AMM TASK 34-36-00-710-003).

5. Close-up
Subtask 34-36-31-410-055-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 811.
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:23:18 UTC