ECS TIMER (P/N 25-8nf4417-83a) - Serviceable

The 25-8nf4417-83a is an Environmental Control System (ECS) timer and control box assembly for Hawker 800XP aircraft. This line-replaceable unit manages cabin pressurization and air-conditioning functions within the aircraft's ECS control circuit per ATA Chapter 21 specifications. The assembly integrates timing logic and valve control outputs to regulate environmental conditions during flight operations.

Installation requires verification against the aircraft's Illustrated Parts Catalog and compliance with applicable maintenance manual procedures. Verify compatibility with your specific aircraft configuration before installation.

What is the ECS TIMER (P/N 25-8nf4417-83a)?

The 25-8nf4417-83a is an Environmental Control System (ECS) timer and control box assembly for Hawker 800XP aircraft. This line-replaceable unit manages cabin pressurization and air-conditioning functions within the aircraft's ECS control circuit per ATA Chapter 21 specifications.

Is the 25-8nf4417-83a a PMA or OEM part?

The ECS TIMER may be available as an OEM (Original Equipment Manufacturer) or PMA (Parts Manufacturer Approval) part depending on condition and source. Both carry FAA certification for airworthiness. Currently available in: Serviceable. Contact us for sourcing details.

Does the 25-8nf4417-83a include installation hardware?

Installation hardware requirements vary by application. Check your aircraft's Structural Repair Manual (SRM) or Illustrated Parts Catalog (IPC) for the complete installation kit requirements for the ECS TIMER. We stock related hardware and can help identify companion parts.

Can the 25-8nf4417-83a be shipped internationally?

Yes, we ship airframe components worldwide. International orders typically arrive within 3-14 business days depending on destination. Export documentation and customs forms are included. Contact us for international shipping quotes on the 25-8nf4417-83a.