Installation of the Programming Box Assembly (PBA)

TASK 25-65-35-400-002-A
Installation of the Programming Box Assembly (PBA)

ZONE: 200

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

REFERENCE	QTY	DESIGNATION
No specific	Torque wrench: range to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE
261BC

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-23-42-000-002-A	Removal of the Ceiling Panels - Aft Utility Area
TASK 25-23-42-400-002-A	Installation of the Ceiling Panels - Aft Utility Area
TASK 25-65-00-840-001-A	Procedure after a Change of Aircraft Registration Number
TASK 25-65-35-000-001-A	Removal of the Emergency Locator Transmitter (ELT)
TASK 25-65-35-400-001-A	Installation of the Emergency Locator Transmitter (ELT)
PBA 130MX

3. Job Set-up
Subtask 25-65-35-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the ceiling panel 261BC is removed (Ref. AMM TASK 25-23-42-000-002).
(3) Make sure that the ELT is removed (Ref. AMM TASK 25-65-35-000-001).

4. Procedure
Subtask 25-65-35-560-051-A ** ON A/C NOT FOR ALL

A. Preparation of the Replacement PBA 130MX

PBA 130MX ** ON A/C NOT FOR ALL

(1) If you install a replacement PBA (1), or the aircraft registration code/number (ICAO) has changed:

Program the PBA (1) with the correct aircraft identification.
Change the identification part of the label (26) accordingly.

(2) If programming equipment is not available refer to (Ref. AMM TASK 25-65-00-840-001).

Subtask 25-65-35-420-052-A ** ON A/C NOT FOR ALL

B. Installation of the PBA 130MX

PBA 130MX ** ON A/C NOT FOR ALL

(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Carefully hold the PBA (1) in position on the aircraft structure.
(4) Install the washers (28) and the bolts (27) and torque the bolts to between 0.5 and 0.4 m.daN (44.25 and 35.40 lbf.in )

.
(5) Remove the CAP-BLANKING from each electrical connector and receptacle.
(6) Make sure that all the electrical connections are clean and in the correct condition.
(7) Connect the connector (8) to the PBA (1).

5. Close-up
Subtask 25-65-35-410-051-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) Install the ELT (Ref. AMM TASK 25-65-35-400-001).
(3) Install the ceiling panel 261BC (Ref. AMM TASK 25-23-42-400-002).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

Subtask 25-65-35-862-051-A ** ON A/C NOT FOR ALL

B. De-energize the ground service network (Ref. AMM TASK 24-42-00-862-001).

[Rev.9 from 2019] 2026.03.31 23:41:31 UTC