ALT. AIR DOOR ASSY (P/N ETI-B-703) - As Removed

The ETI-B-703 is an alternate air door assembly for aircraft induction systems. This component provides a bypass path to admit unfiltered cowl air when the primary intake becomes blocked, meeting FAA requirements for reciprocating engine installations. Mounted on the airbox, the door operates via cable or spring actuation to automatically or manually engage the alternate air source during blockage conditions.

Installation and rigging must follow the aircraft maintenance manual specifications. Verify compatibility with your aircraft's Illustrated Parts Catalog before installation.

What is the ALT. AIR DOOR ASSY (P/N ETI-B-703)?

The ETI-B-703 is an alternate air door assembly for aircraft induction systems. This component provides a bypass path to admit unfiltered cowl air when the primary intake becomes blocked, meeting FAA requirements for reciprocating engine installations.

Is the ETI-B-703 a PMA or OEM part?

The ALT. AIR DOOR ASSY 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: As Removed. Contact us for sourcing details.

Does the ETI-B-703 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 ALT. AIR DOOR ASSY. We stock related hardware and can help identify companion parts.

Can the ETI-B-703 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 ETI-B-703.