Instrument Failures and GPS/INS Failures
T-45C TS & ADV BIFP-09; IUT BIFP-05
B. Use equivalent angle-of-attack for airspeed in
Sg 6, fr 3
NATOPS emergency procedures for PITOT
STATIC MALFUNCTION
STANDBYALTIMETER
STANDBY
STANDBYVSI
FORWARD
ALTIMETER
COCKPIT
LEGEND
STANDBY
AIRSPEED
STANDBYVSI
PITOT
INDICATOR
STANDBY
STATIC
AIRSPEED
INDICATOR
C. Use radar altimeter for altitude when below
AFT
COCKPIT
5,000 ft AGL
HUD
ON
AIRSPEED
S
D
A
E
D
D. Use cabin pressure altimeter for altitude
U
S
BAROMETRIC
ALTITUDE
MFD
information above 5,000 ft AGL
D
N
N
OFF
OF
PITOT STATIC SYSTEM
1.
Depressurize cabin
NOTE: Regulations prohibit flight above
25,000 ft MSL if the cockpit has been
depressurized.
2.
Cabin pressure altimeter does not
compensate for local barometric pressure
and should be considered
accurate to +/- 500 ft
E. No cross-check of vertical speed if VSI affected
or use clock to time the amount of altitude
change over specific period of time—200 ft in
15 seconds equals 800 ft per minute
F. Procedure for dealing with a total pitot static
Sg 6, fr 4
system failure
1.
Check PITOT HEAT — ON
2.
Compare instruments in both cockpits
3.
Use AOA, radar altitude, and/or cabin
pressure altimeter to calculate approximate
airspeed and altitude
PITOT SYSTEM FAILURE
4.
Report failure to ATC
5.
Maneuver to exit icing conditions (if
applicable)
6.
Remain VMC, if possible
(4-01) Original
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