NORMARC 7013 - C Maintenance Procedures

©1999 Navia Aviation AS 21833-3.4 Maintenance Procedures
OPERATING MANUALNORMARC 7013
INSTRUMENT LANDING SYSTEM
C-1
C Maintenance Procedures
The following maintenance instructions are derived from FAA manual 6750.49 chapter 5. The
reference paragraph numbers are identical to FAA numbers. FAA manual 6750.49 chapter 4
should be used as guide to select the Monthly, Quarerly, Semiannually etc. instructions in this
chapter. If FAA chapter 4 refers to an item not found in this chapter, the item in FAA manual
chapter 5 should be used.
5-10 LINE ENTRY OF NORMAL READINGS.
a. Object.
This procedure provides a method to complete a line entry of the normal parameters on Navia
Aviation Form “Localizer Monitor Reference Data”, with the equipment in normal configura-
tion.
b. Discussion.
A line entry of the localizer normal parameters is required before a normal ground check and
periodically as required in chapter 4. This check is made without adjustment to the equip-
ment. CSB and SBO power is measured manually with the dvm probing the facility transmitter
CSB and SBO test connectors, respectively. Identification and voice can be monitored aurally
from the facility keyboard/display. Monitor parameters can be recorded/printed from the
PDMT.
c. Test Equipment Required.
1. A portable ILS receiver (PIR).
2. A digital voltmeter (dvm).
3. Built-in test equipment (BITE).
NOTE:
Chapter 1, Paragraph 1-2b, Test Equipment, discusses external test equipment and BITE,
and their proper use in the NAS. Particular attention must be paid to the proper use and main-
tenance of test equipment to ensure accurate evaluations of equipment operation. For
instance, when using a BIRD wattmeter for power measurements, the same set of rf bodies,
wattmeter, and elements must be utilized due to the variability of the wattmeter components.
For BITE, proper calibration and verification of measurements are required.
d. Conditions.
The facility is operating normally.
e. Detailed Procedure.
At the local site or RMM location, perform the following steps.
1. Measure and record the normal course CSB dc voltage on Navia Aviation Form “Localizer
Monitor Reference Data”.
2. Measure and record the normal course SBO dc voltage on Navia Aviation Form “Localizer
Monitor Reference Data”.