Presentation - P-12850088

T-45C TS & ADV BIFP-09

Instrument Failures

PRESENTATION

The following procedures assume a single aircraft with functioning radios and

transponder. If you are able to summon a wingman or make a lead change, you can

greatly reduce the problems encountered with an instrument failure. If you lose any

primary navigation or pitot static instruments on an IFR flight, you are required to notify

ATC.

With each of these failures you should cross-check any suspect instrument indication

with the other cockpit if you are flying dual.

The T-45C display system consolidates traditional analog control, performance, and

navigation instruments into a digital multifunctional electronic array. This system is not

prone to electrical or mechanical malfunction.

In aircraft with exclusive analog instrumentation, pilots must be prepared to manage

multiple instrument failures, including flight director ADI and HSI components. The

T-45C cockpit is equipped with fundamental analog instruments; however, those data

outputs are duplicated within the digital display system. The analog instruments are

available as backups, should digital data sources become erroneous, unreliable, or lost.

Fortunately, the digital system is very reliable.

This workbook examines six categories of possible problems that may occur, which

involve aspects of the T-45C digital display system:

•

Single MFD failure

•

Right or left (both cockpits) MFD failure

•

Total (all four) MFD failure

•

Blank, missing, incorrect MFD data

•

MFD push-button failure

•

Data source failure

It also discusses failure of the following individual instruments:

•

Standby AI

•

Radar altimeter

•

Standby barometric altimeter

•

Standby VSI

•

AOA

•

Turn/slip

•

Standby airspeed indicator

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