Removal of the Cockpit Voice and Data Recorder (CVDR) and the Umbrella Panels

TASK 31-39-33-000-801-A
Removal of the Cockpit Voice and Data Recorder (CVDR) and the Umbrella Panels

WARNING: PUT WARNING NOTICES IN THE COCKPIT TO TELL PERSONS NOT TO OPERATE THE FLIGHT CONTROLS. THE MOVEMENT OF THE TRIMMABLE HORIZONTAL STABILIZER (THS) CAN CAUSE INJURY TO PERSONS.

ZONE: 122
ZONE: 312
FIN: 4TU ** ON A/C NOT FOR ALL
FIN: 5TU ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	TIE WRAP(S)
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
122	AVIONICS COMPARTMENT
312	AFT FUSLG TAIL SECTION
312AR, 811

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 52-41-00-010-002-A	Open the Avionics Compartment Doors for Access
Removal/Installation of the CVDR

3. Job Set-up

NOTE: The Procedure is applicable for the Cockpit Voice and Data Recorder 1 (CVDR) and CVDR2.

Subtask 31-39-33-861-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 31-39-33-865-052-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	RCDR1 CVR&FDR	40TU	E14
** ON A/C NOT FOR ALL
121VU	RCDR2 CVR&FDR	42TU	K16
** ON A/C NOT FOR ALL
121VU	RCDR2 CVR&FDR	42TU	K39

Subtask 31-39-33-010-051-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put the WARNING NOTICE(S) in position in the cockpit to tell persons not to operate the flight controls.
(2) For the CVDR1:
(a) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below access door 312AR.
(b) Open access door 312AR.
(c) Set light switch 3LJ to the ON position.
(3) For the CVDR2:
(a) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below access door 811.
(b) Open access door 811 (Ref. AMM TASK 52-41-00-010-002).

4. Procedure
Subtask 31-39-33-020-051-A ** ON A/C NOT FOR ALL

A. Removal of the Umbrella Panels of the CVDR1

Removal/Installation of the CVDR ** ON A/C NOT FOR ALL

(1) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.
(2) Hold the umbrella panel (2) and remove the screws (4) and the washers (5).
(3) Remove the umbrella panel (2).
(4) Hold the umbrella panel (1) and remove the screws (4) and the washers (5).
(5) Remove the umbrella panel (1).
(6) Hold the umbrella panel (3) and remove the screws (4) and the washers (5).
(7) Remove the umbrella panel (3).

Subtask 31-39-33-020-052-A ** ON A/C NOT FOR ALL

B. Removal of the CVDR

Removal/Installation of the CVDR ** ON A/C NOT FOR ALL

NOTE: Before you remove the CVDRs for shop maintenance or repair you must get the ECAM last leg report, the system last leg report and any class III faults.

(1) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.
(2) Disconnect the electrical connectors:

CAUTION: TO PREVENT POSSIBLE CROSS-CONNECTION OF THE ELECTRICAL CONNECTORS, MAKE SURE THAT PLUGS AND RECEPTACLES ARE CLEARLY IDENTIFIED.

(a) Disconnect the electrical connectors (8).
(b) Make sure that all the electrical connections are clean and in the correct condition.
(c) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove the screw (9), washer (10), spacer (12), self-locking nut (13) and strap (11).
(4) Temporarily attach the electrical connectors (8) and the strap (11) to the aircraft structure with the TIE WRAP(S).
(5) Remove the screws (14) and the washers (15).
(6) Carefully remove the CVDRs (6) and/or (7) from the mounting tray.

[Rev.10 from 2021] 2026.04.01 00:36:59 UTC