Zero flight hour returns must meet the following criteria:

• Have 0 in service hours. Customer to certify all returned parts to have TSN (Time Since New) = 0 and CSN (Cycles Since New) = 0.
• Must come from the original point of purchase (Original Equipment Manufacturer, Authorized Distributor, etc.). 
• Deicer boots must be returned in the original packing.
• Parts with an MRO repair history (were shipped with a return to service tag) shall not be considered new.
• All product sold to, or in the possession of, an after-market customer must be processed through a Collins approved repair station. 
• Enclosed parts (e.g. timers and controllers) with evidence that the seal was broken shall not be considered zero hour or given warranty consideration.
• RMA number must be written in bold type on the outside of the box/container.
• Any unit returned without an RMA# reference could be subject to delays in processing and may result in products being returned/shipped back to customer at their expense. Do not ship units until an RMA has been issued.
• Must be within warranty period as described in contractual agreement or warranty statement.

If your part meets the above criteria, submit a request for RMA in the form below