Maintenance & Engineering Training

Q

MASTER WARNING AND CAUTION

ATA 31

Instructor Information

Instructor

Telephone: (

email:

Class Guidelines

Introductions

Got a train to catch?

Class GuidelinesClass times: 0800-1530

Lunch - 1130-1230Class Guidelines

Rest Rooms

Class Guidelines

Breaks - Every 45 to 60 minutes

Class Guidelines

Building Safety & Security Considerations

Class Guidelines

Class Sign-In Sheet

Class ParticipationClass Guidelines

DISCLOSUREThe material cover on this course is for training and familiarization

purpose only and is not intended to supersede the Manufacturer Maintenance Manual or any other regulatory approved data. Always refer to your company procedures and never deviate from approved Technical Data.

You are always responsible for the work you sign for.

Your SAFETY and those around you must be your #1 priority.

Introductions

• Name

• Company or Organization

• Responsibility

Introductions

Questions ???

General Familiarization and Line Maintenance Class

for Master Warning and Caution lights on Boeing 737-800

Student Objectives

Locate Major Components and Describe Their Functions

Describe Panel Operation and InterfaceDescribe Electrical Power, Control and

DistributionDescribe Routine ServicingReview MEL and Troubleshooting

Master Warning and Caution

The master caution system provides a visual alert to the flight crew of unsafe airplane systems operation.

Master Warning and Caution

The annunciator and dimming module is located above access panels in the top of the noselanding gear wheel well and is mounted to the J19 panel which is fastened to the bottom of theflight compartment floor.

INTERFACE

Ground Signal

INTERFACE WITH A/C

* Flight control panel* IRS master caution unit* Flight control panel* Generator drive and standby power panel* APU indicator panel* Overheat/fire protection panel* Window heat panel

* Hydraulic panel* System annunciators* Engine panel* Flight recorder/Mach airspeed warning panel* Air conditioning/bleed air control panel.

Recall Check• When performing a Recall Check.– Depress and hold either System Annunciator Light Panel.– Verify that both MASTER CAUTION Lights illuminate.– Verify all lights have illuminated in both Annunciator Light Panels.– Release the System Annunciator Light Panel.If the MASTER CAUTION Lights remain illuminated, with or withoutindividual System Annunciator Lights, investigate the cause.

Under normal condition (no other malfunctions, good weather, etc.), recallfaults that reset when the MASTER CAUTION Light is pressed are dispatchable and should be written up at the next destination. It is not necessary to call Maintenance or run abnormal procedures from the QRH in these instances.

ANNUNCIATION LIGHT RESET and RECALL

46S

6 Pack Warning and Caution Lamp Replacement

CAUTION: REMOVE THE LAMP HOUSING WITH YOUR FINGERS ONLY. IF YOU USE A TOOL TO HOLD THE LAMP HOUSING, THE TOOL CAN CAUSE DAMAGE TO THE HOUSING.

MEL

REVIEW

• The six pack lights are control by applying voltage or ground?

• What side is the hydraulic warning for the six-pack indicator located?

• What controls the brightness of the warning indication system?

Q&A