BITE

Question 1

BITE systems came into practical use with the invention of:

Answer 1

digital electronic systems.

Question 2

Second generation of self-diagnostics equipment incorporates the use of:

Answer 2

a centralized monitoring system.

Question 3

The built-in troubleshooting system on the Boeing aircraft is known as:

Answer 3

Central Maintenance Computer System (CMCS)

Question 4

The Airbus A320 Family aircraft system is called the:

Answer 4

Centralized Fault Display System (CFDS)

Question 5

Third generation BITE systems have become more integrated and allow for:

Answer 5

wireless communications of troubleshooting data.

Question 6

Aircraft like the Boeing 787 and the Airbus A350 can monitor systems, analyze faults, and automatically download maintenance information through the use of:

Answer 6

wireless systems such as Local Area Network (LAN), airborne cellular or satellite technologies.

Question 7

BITE is designed to provide:

Answer 7

detection, isolation and operational verification.

Question 8

The Boeing 757 and 767 aircraft utilizes built-in test equipment on approximately
____ LRUs.

Answer 8

50

Question 9

Simple BITE system may incorporate a go/no-go red or green LED, or a simple two character alphanumeric LED display on:

Answer 9

the front of each of the individual LRU’s in the Electronic & Equipment Bay (E&E bay).

Question 10

More complex systems
use a multi-character
display and monitor
known as a
_____ ______ _____ ______ and is capable of monitoring more than
one LRU at a time.

Answer 10

Maintenance Control
Display Panel (MCDP)

Question 11

The MCDP can be accessed from the:

Answer 11

electrical equipment bay or the flight deck using a carry-on unit.

Question 12

The MCDP can store fault data for up to ___ previous flights.

Answer 12

ten

Question 13

The MCDP monitors what?

Answer 13

the flight control computers, flight management computers, and the thrust management computers.

Question 14

Even more advanced BITE systems incorporate displays activated from the flight deck and may have a means to transmit data from:

Answer 14

the aircraft to the ground facility via ACARS.

Question 15

The _______ ______ ______ ______ is not considered a BITE system, but it is a manager of the individual built in test equipment of the various LRUs located throughout the aircraft.

Answer 15

Central Maintenance Computer System (CMCS)

Question 16

The B-747-400 CMCS is accessed through:

Answer 16

one of four control display units (CDUs).

Question 17

Up to ____ faults can be stored in the CMC memory.

Answer 17

500

Question 18

From these detected faults, a selection from _____ different fault messages may be displayed on the CDU depending on the system that faulted.

Answer 18

6,500

Question 19

There are two CMC’s, Each CMC weights about 17 pounds and has a ____-pin connector on the rear of the unit.

Answer 19

300

Question 20

The CMCs are _______ ______ sensitive so the technician must always take the necessary precautions during maintenance.

Answer 20

Electrostatic Discharge (ESD)

Question 21

Airbus A320 Family uses the ____ ____ ____ ____ for fault isolation and system analysis.”

Answer 21

Centralized Fault Display System (CFDS)

Question 22

The A320 series aircraft CDS utilizes a ____ ____ ____ _____ to input commands, monitor replies, and access fault data of the CFDS

Answer 22

Multipurpose Control Display Unit (MCDU)

Question 23

The MCDU is nearly identical to the:

Answer 23

CDU used on the Boeing aircraft.

Question 24

There is only one ______ on the A320 series aircraft.

Answer 24

CFDIU