Slide *NOTE!The content of and periode between procedures given
are Park Air Systems recomondations under normal operational
environment.
The responsible Authority may have requirements that replaces,
modifies or comes in addition to the procedures given.
Slide *On-site performance checks
Monthly Six Monthly Annual
Slide *Other On-site maintenance
Clean and inspectEquipmentinspect batteries for corrosion,
cracks, and other deteriorationcheck and tighten RF and battery
connections as requiredCheck any installed environmental sensors
and other equipment connected to user analog or digital inputs for
proper operationCheck operation of interlocks, if installedCheck
operation of remote controls if installed
Slide *Off-site maintenance
All module and circuit board repair is to be performed off site,
at the factory or authorized repair depotNo modules are
user-serviceable
Slide *Periodic maintenance
No adjustmens / alignments shall be done during a Periodic
MaintenanceThe parameters should be recorded and compared with
their nominal values only
Slide *Monthly
Observe and record monitor data (both Txs)No alarms or
warningsObserve Maintenance parameters (both Txs)No alarms or
warningsField DDM measurementsAs established for facilityCourse
Structure along runway (CAT III)As established for facilityTest
equipmentPIRPC
Slide *Six Monthly
Tx parameters and DC supply recordingsAs established at
installation and flight inspectionMonitor Integrity CheckChange
Over / Shut DownTest equipmentOscilloscopeStop watchPCThe Monitor
Integrity Check is a special check to verify that the Terminator
part of the TCA1218 board is working correctlyThe check has to be
carried out to fulfil the Continuity of Service requirements in
Annex 10
Slide *Annual
RF Frequency check (Course/CLR both Txs)adjusted frequency
+/-0.002%LF Frequency check (Course/CLR both Txs)+/-0.05Hz
Test equipmentOscilloscopePIRPCFrequency counterRF signal
generator (ILS mod)Dig. VoltmeterPower MeterStop watch
Slide *Annual
Tx waveform check (CSB / SBO)As indicated on drawingsTx
modulation check (DDM / SDM / Ident)As established for facilityCSB
output powerAs established for facilityMonitor Alarm limits
checkUsing Flight Check test signals CAT I / IIUsing RF Signal
Generator (ILS mod) CAT III
Slide *Annual
Near Field monitor delayAs set +/-2 seconds20 seconds
inhibitbetween 20 22 secondsBattery maintenancePer battery
specificationFinal checkVisual inspection
