User Manual

ACR ELECTRONICS, INC / ARTEX PRODUCTS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
-B (453-6501)
25-69-11
Page 32 of 58
JUL 28/11
TASK 25-69-11-750-802
2. Periodic Inspection
SUBTASK 25-69-11-220-001
A. Inspection Procedures
(1) Remove the ELT/NAV Interface -B in accordance with SUBTASK 25-69-11-050-001, on
page 39.
(2) Perform a visual inspection of the chassis exterior, checking for:
(a) Damage to the finish,
(b) Corrosion,
(c) Excessive wear of the mounting holes, and
(d) Cracks in the mounting flanges.
(3) Perform a visual inspection of the mounting hardware for condition and corrosion.
(4) Perform a visual inspection of the connectors, checking for:
(a) Corrosion,
(b) Bent or broken pins, and
(c) Security of wires in the pins and pins in the connector socket.
NOTE
: A slight tug on each wire will reveal a wire loose in the pin (i.e., bad crimp) or
an improperly seated pin in the connector socket.
(5) Inspect the P2 interface wiring between the ELT/NAV Interface -B and the ELT for:
(a) Security,
(b) Evidence of damage, and
(c) Evidence of insulation deterioration.
(6) Inspect the P1 24-bit address wiring between the ELT/NAV Interface -B and ground or 24-bit
address switch block for:
(a) Security,
(b) Damage,
(c) Insulation deterioration, and
(d) Grounding points for corrosion.
(7) Reinstall the ELT/NAV Interface -B in accordance with SUBTASK 25-69-11-450-002, on
page 43.