Removal of the Flight Data Interface Unit (FDIU)

TASK 31-33-34-000-001-A
Removal of the Flight Data Interface Unit (FDIU)

ZONE: 127
FIN: 2TU ** 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	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
127	REAR AVIONIC COMPARTMENT
824

C. Referenced Information

REFERENCE	DESIGNATION
Flight Data Interface Unit (FDIU)

3. Job Set-up
Subtask 31-33-34-865-050-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	FDIU	8TU	K17

Subtask 31-33-34-941-050-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position in zone 128, at the access door 824.
(2) Open the access door 824.

4. Procedure
Subtask 31-33-34-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Flight Data Interface Unit (FDIU)
(1) Loosen the nut (4).
(2) Lower the nut (4).
(3) Pull the FDIU (1) on its rack (3) to disconnect the electrical connectors (2).
(4) Remove the FDIU (1) from its rack (3).
(5) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

[Rev.10 from 2021] 2026.04.01 00:34:55 UTC