Instrument Failures and GPS/INS Failures
T-45C TS & ADV BIFP-09; IUT BIFP-05
IX. Vertical speed indication failure
Sg 9, fr 2
INSTRUMENT FAILURES
A. Use standby VSI, since vertical speed on ADI
* GINA failure
* Standby attitude indicator
and HUD generated by GINA
failure
*
MFD failure
* AOA indicator failure
*
HSI failure
* Radar altimeter failure
*
ADI failure
* VOR failure
B. If both vertical speed and VSI failed
*
Turn and slip
* TACAN bearing/DME
indicator failure
failure
*
Pitot static
* ILS glideslope failure
malfunctions
1.
Cross-check other pitot static system
*
Airspeed indicator * ILS localizer failure
failure
instruments for correct operation
*
Barometric
* ILS marker beacon failure
altimeter failure
*
Vertical speed
* Flight with partial panel
indication failure
2.
Use clock and altitude change to cross-
check vertical speed or if vertical speed
Sg 9, fr 3
also failed
3.
Descend 200 ft in 15 seconds, rate of
descent is 800 ft per minute
C. Procedure for dealing with vertical speed
indication and standby VSI failure
VERTICAL SPEED INDICATION
FAILURE
1.
Check PITOT HEAT—ON
Sg 9, fr 4
2.
Cross-check altimeter and clock for vertical
STANDBYALTIMETER
STANDBY
STANDBYVSI
FORWARD
ALTIMETER
COCKPIT
LEGEND
STANDBY
velocity reference
AIRSPEED
STANDBYVSI
PITOT
INDICATOR
STANDBY
STATIC
AIRSPEED
INDICATOR
AFT
COCKPIT
3.
Watch for other indications of possible pitot
static problems
HUD
ON
AIRSPEED
S
D
A
E
D
U
S
BAROMETRIC
ALTITUDE
MFD
D
N
N
OFF
OF
PITOT STATIC SYSTEM
Sg 9, fr 5
STANDBY VSI FAILURE
Page 9-18
(4-01) Original
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