Installation of the Arrestor Pick-Up Fitting

TASK 53-15-11-400-004-A
Installation of the Arrestor Pick-Up Fitting

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 110

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

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.616 and 0.504 m.daN (54.51 and 44.60 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06AAB1)	Polysulfide Sealant-General Purpose Fillet -
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
110	RADOME (NOSE CONE TO FR 1)

D. Referenced Information

REFERENCE	DESIGNATION
TASK 20-28-00-869-002-A	Table of the Maximum Permitted Resistance-Values
TASK 53-15-11-010-001-A	Opening of the Radome
TASK 53-15-11-410-001-A	Closing of the Radome
Arrestor Pick-Up Fitting

3. Job Set-up
Subtask 53-15-11-869-055-A

A. Aircraft Maintenance Configuration
(1) Make sure that the radome is open (Ref. AMM TASK 53-15-11-010-001).
(2) Make sure that the access platform is in position in the zone 110.
(3) Make sure that the WARNING NOTICE(S) which tells persons not to operate the radar system is(are) in position on the center pedestal.

Subtask 53-15-11-865-067-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	COM NAV/RADAR/1	5SQ1	K13
** ON A/C NOT FOR ALL
121VU	COM NAV/RADAR/2	5SQ2	K14

4. Procedure
Subtask 53-15-11-110-050-A

A. Preparation for Installation
(1) Clean the mating surfaces of the arrestor pick-up fitting and the frame edge of the radome with Non Aqueous Cleaner-General - - (Material No.08BAA9) and Textile-Lint free Cotton - (Material No.14SBA1) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interface and/or the adjacent area.

Subtask 53-15-11-420-059-A

B. Installation of the Arrestor Pick-Up Fitting

Arrestor Pick-Up Fitting

NOTE: The installation procedure is the same for each fitting.

(1) Apply Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) on the mating surfaces of the arrestor pick-up fitting and the frame edge of the radome.
(2) Do the scrapping on the mating surfaces of the radome.
(3) Put the arrestor pick-up fitting (62) in position.
(4) Install the bolts (61) and the nuts (63).
(5) TORQUE the nuts (63) to between 0.616 and 0.504 m.daN (54.51 and 44.60 lbf.in )

.
(6) Close the radome (Ref. AMM TASK 53-15-11-410-001).

Subtask 53-15-11-720-053-A

C. Check of the Ohmic Resistance
(1) Make sure that the radome is closed (Ref. AMM TASK 53-15-11-410-001).
(2) Measure the ohmic resistance between each lightning arrestor strip of the radome and the adjacent primary structure of the aircraft (Ref. AMM TASK 20-28-00-869-002).
(3) Make sure that the ohmic resistance is correct.

5. Close-up
Subtask 53-15-11-865-068-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	COM NAV/RADAR/1	5SQ1	K13
** ON A/C NOT FOR ALL
121VU	COM NAV/RADAR/2	5SQ2	K14

Subtask 53-15-11-942-059-A

B. Close Access
(1) Remove the WARNING NOTICE(S).
(2) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:28:51 UTC