Periodic Inspection; Inspection Procedures - COBHAM ELT/NAV INTERFACE Abbreviated Component Maintenance Manual

TASK 25-69-10-750-802

2. Periodic Inspection

SUBTASK 25-69-10-220-001
A.

Inspection Procedures

(1) Remove the ELT/NAV Interface in accordance with SUBTASK 25-69-10-050-001, 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:
(5) Inspect the P2 interface wiring between the ELT/NAV Interface 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 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 in accordance with SUBTASK 25-69-10-450-002, on page 43.
COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
453-6500
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.
25-69-10
Page 32 of 58
APR 06/10