INSTRUMENTS AND RECORDERS, AIR DATA SYSTEM
Operation
Aircraft Operations Manual
12/1.2
PAGE
4
Jun30/15
3.
ABNORMAL OPERATION.
CONDITIONS
ABNORMAL PROCEDURES
3.1
ALTITUDE
PRE- SELEC-
TOR ALERTER
FLAG
WARNING
INDICATIONS
Altitude Preselector Alerter warning flag comes on.
ACTIONS
1.
CB F- 13 L VSI/VNI PRESEL
CHECK/RESET
. . . . . . . . . . . . . . . . . . . . .
2.
End of procedure.
3.2
LEFT INSTRU-
MENTS
ERRATIC
INDICATIONS
Erratic or stuck indication on any of the left instruments:
- Airspeed;
- Altimeter;
- Vertical speed or VNAV (if installed).
ACTIONS
Only the Altimeter affected
1. CB F- 14 ADC L ALTIM
CHECK/RESET
. . . . . . . . . . . . . . . . . . . . . .
2. End of procedure.
Only the IAS indicator affected
1. CB F- 15 ADC L ASI
CHECK/RESET
. . . . . . . . . . . . . . . . . . . . . . . .
2. End of procedure.
Only the VS or VNAV indicator affected
1. CB F- 13 L VSI/VNI PRESEL
CHECK/RESET
. . . . . . . . . . . . . . . . .
2. End of procedure.
All three instruments affected
1. See Chapter 23, ABNORMAL PROCEDURE, ADC FAILURE.
2. End of procedure.