T.O. BMS1F-16CM-1 BMS 4.34 Change 2.00
BMS 4.34 Dash 1
© Red Dog 2012-2019 Page: 86
1.4.4. TEST page
The TEST page shows various Built-In Tests (BIT). BIT1 and
BIT2 display the maintenance fault list (MFL) encountered
during a flight. Each fault encounter logs the following:
1. Subsystem (same as on PFL) where the fault occurred
2. Test number that failed
3. Number of failures of that subsystem
4. Time (since FCC power up) the first fault occurred
Two pseudo-faults are always recorded; the take-off time
(TOF) and landing time (LAND). TOF is recorded whenever the
airspeed reaches 120 kts with the gear up. LAND is recorded
whenever the gear is down and airspeed is less than 80 kts.
Pressing the CLR button will clear the fault list and launch a
fault survey. A maximum of 17 faults (including the two pseudo-
faults) may be recorded. If more than 17 faults are present the oldest (which occurred first) will be
replaced by the newest one. After the flight pilots can review the full MFL from the flight in the DTC file.
All MFLs are recorded in the dtc_last_flight_faults.txt file (\User\Logs\ folder) at the end of each flight.
It is overwritten with each new flight.
It is normal to have faults displayed on the TEST page during Ramp Start. Those faults will clear as
the systems come online. In the event of a real problem it may be necessary to clear the MFL with
OSB #3 to launch a fault survey. After having cleared the MFL if a system is still malfunctioning the
fault will display again on the MFL, allowing the pilot to take appropriate action to solve it.
PAGE 1
OSB #1 BIT1 Indicates BIT1 tests. Pressing this button changes to the BIT2 page
OSB #3 CLR Clears the Maintenance Fault List (MFL) if displayed in the centre of the MFD
OSB #6 MFDS MFD Self-Test (N/I)
OSB #7 RALT Radar Altimeter test
OSB #8 TGP Targeting Pod test (N/I)
OSB #9 FINS Fixed Imaging Navigation Set (N/I)
OSB #10 TFR Terrain Following Radar Test (N/I)
OSB #16 RSU Rate Sensor Unit (N/I)
OSB #17 INS Inertial Navigation System test (N/I)
OSB #18 SMS Stores Management System test (N/I)
OSB #19 FCR Fire Control Radar test switches the MFD to the FCR page and starts the FCR BIT
OSB #20 DTE Data Test Loading (N/I)
PAGE 2
This page contains additional built-in tests. OSB 1 (BIT2) indicates that these are the BIT2 tests.
Pressing this button again will change to the BIT1 page.
OSB 3 CLR Clear fault list (N/I)
OSB 6 IFF1 IFF1 self-test (N/I)
OSB 7 IFF2 IFF2 test (N/I)
OSB 8 IFF3 IFF3 test (N/I)
OSB 9 IFFC IFF Mode C test (N/I)
OSB 10 TCN TACAN Test (N/I)
OSB 19 TISL Target Identification Set, Laser (N/I)
OSB 20 UFC Up-Front Controls (N/I)
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