Visual Check of Vent Surge Tank Burst Disc (EXTERNAL)

TASK 28-12-00-210-001-A
Visual Check of Vent Surge Tank Burst Disc (EXTERNAL)

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

ZONE: 550
ZONE: 650

1. Reason for the Job
Refer to the MPD TASK: 281200-01
VISUAL CHECK OF VENT SURGE TANK BURST DISC (EXTERNAL)
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
98D27803500001	1	LOCKING TOOL ZERO POS

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
550	VENT SURGE TANK
650	VENT SURGE TANK

C. Referenced Information

REFERENCE	DESIGNATION
TASK 28-12-00-200-001-A	Inspection of the Tank Venting System
TASK 28-12-41-000-001-A	Removal of the Overpressure Protector
TASK 28-12-41-400-001-A	Installation of the Overpressure Protector
Vent Surge Tank Burst Disc - Location and Detail ** ON A/C NOT FOR ALL
Vent-Surge-Tank Burst Disc - Location and Detail ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 28-12-00-941-061-A

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) On panel 114VU, install a 98D27803500001 LOCKING TOOL ZERO POS on the flap and slat control lever.
(3) In the cockpit, put a WARNING NOTICE(S) in position to tell persons not to operate:

The flaps or the slats
The flight controls.

(4) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the applicable zone 550 or 650.

4. Procedure
Subtask 28-12-00-210-061-A

A. Visual Check of the Vent Surge Tank Burst Disc (EXTERNAL)

Vent Surge Tank Burst Disc - Location and Detail ** ON A/C NOT FOR ALL

Vent-Surge-Tank Burst Disc - Location and Detail ** ON A/C NOT FOR ALL

(1) Inspect the burst (safety) disc through the opening in access panel 550CB(650CB). Make sure that:

The white cross on the burst (safety) disc can be clearly seen
The burst (safety) disc is in one piece.

(2) If the burst (safety) disc is damaged, do the following steps:
(a) Replace the applicable overpressure protector assembly (Ref. AMM TASK 28-12-41-000-001) (Ref. AMM TASK 28-12-41-400-001).
(b) Do an inspection of the applicable tank venting system (Ref. AMM TASK 28-12-00-200-001).

5. Close-up
Subtask 28-12-00-942-064-A

A. Removal of the Equipment
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
(5) Remove the SAFETY BARRIERS.

[Rev.10 from 2021] 2026.04.02 06:17:09 UTC