AIRPLANE
OPERATIONS
MANUAL
NORMAL PROCEDURES
REVISION 37
1-02-17
Page
9
Code
01
AOM-145/1114
Flight Instruments ......................................................... SET &
X-CHECKED
Both pilots must set their respective altimeters to the local QNH.
They must also select an initial course as per the expected
departure procedure. The CPT must also set the HDG bug
according to the intended runway heading.
Once these actions are complete, the pilots must carry out an
instrument crosscheck as follows:
- Both AIRSPEED TAPES not showing speed;
- EADI’s level and flag-free;
- Both ALTIMETERS with their QNH set, and reading
consistent with altitudes. If the crew already has the
predeparture clearance, they can select the initial assigned
altitude on the ASEL;
- Both VERTICAL SPEED INDICATORS showing zero;
- EHSI’s with the courses selected according to the intended
departure procedure, showing the same magnetic heading,
flag-free and with the heading bug set to the intended
runway heading.
NOTE: In case of heading split, check if there are ferrous structures or
other magnetic interference sources close to the airplane,
and/or move the airplane to a different location.
Standby Instruments..................................................... SET
Uncage the STANDBY ATTITUDE indicator, if it is caged, and
observe that the red flag is removed and the horizon is steady.
Compare its indication with the main attitude indicators. Set the
QNH and compare its readout with one of the main altitude tapes.
MFD SYS Pages........................................................... CHECK
RMU.............................................................................. SET
The PF assigned for the flight must set the COMM and NAV
frequencies as appropriate for the expected SID or departure
procedure.
The use of the VHF COMM sets must follow the arrangement
described below:
COMM 1: ATC
COMM 2: Company frequency, ATIS, VOLMET, etc.
COMM 3 (if available): Distress (121.5) and air-to-air broadcast.
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