Bruce BR3000-330-2CL - BR3000 MLS Inspection

BR3000-330-2CL,-3CL,-2EN CMM and IPL
Document No. 33-21-57, Rev. A
Page 47
3. Heavier stains and residue can be removed from the BR3000 MLS, LRU units by
using clean cotton swabs and isopropyl alcohol to clean any surfaces or electronic
assemblies which have become dirtied or contaminated. Wipe the areas dry with a
clean, lint-free cloth.
5.8.2 BR3000 MLS Inspection
NOTE: If a BR3000 MLS, LRU is excessively damaged it should be returned to the
manufacturer or an authorized maintenance center for repair.
When BR3000 MLS, LRU units are removed from the aircraft, inspect the units for the
following signs of damage:
1. Damaged LCM connectors and cables: Inspect the pins or sockets in the power
harness and data harness connectors for signs of damage. Examine the power and
data harnesses for damaged, frayed, or kinked wires.
2. Inspect the BR3000 LRU for signs of discoloration (potential overheating), carbon
trails (arcing), or excessive contamination.
3. Inspect the BR3000 LCM units for signs of physical damage. This includes damage
to the LED emitters in the LED array, the lens used to cover the LED array, and the
chassis of the unit. Verify that there is no loose hardware on the BR3000 LRU.
4. Inspect the BR3000 MLCP units for signs of physical damage. This includes
damage to the membrane keypad assembly, damage to the USB connector and
sliding cover door, and damage to the housing.