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Other aircraft modifications

STC SR02728LA

FAA DRS lists SR02728LA as Current · Issued, held by Coulson Aviation (USA) Inc., for Unical Air CH-47D. Recorded change: Installation of Retardant Aerial Delivery System Large (RADS. Snapshot dated June 30, 2026.

FAA-listed holder
Coulson Aviation (USA) Inc.
Aircraft configurations
1
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of Retardant Aerial Delivery System Large (RADS.

SR02728LA identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Unical Air CH-47D. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Unical Air CH-47DR00024LA

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Unical Air CH-47D model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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SA02262AKOther aircraft modifications

Manufacture weld-on float fittings in accordance with Airframes, Inc., Master Drawing List AF591078, Revision A, dated November 24, 2005, or later FAA approved revision. Install in accordance with Installation Instructions II591078, Revision O, dated February 22, 2006, or later FAA approved revision. Maintain in accordance with Instructions for Continued Airworthiness ICA591078, Revision O, dated November 28, 2005, or later FAA accepted revision.

FAA holder: Northern Airframes LLC

View record