Narrative:

I was called into work early to go to ZZZ1 to change an aircraft's #6 blade on the #1 prop. When I arrived at ZZZ my parts and paperwork had already been pre-pulled for me. I gathered my tools and essentials from stores to expedite to ZZZ1. Once in ZZZ1 I assembled the seals and put the compression tool on to allow it to compress the seal over time; while I worked at getting the blade out of the hub. Maintenance control was notified and at xb:30 estimated completion time was set. I continued to remove and replace the blade. Just as I started to install the blade it started to rain. I wanted to remove the compression tool (at the latest possible moment) and get the blade in before water got into the hub. Everything appeared normal as I torqued the blade. I ran the aircraft [engine] and performed the required test. The flight crew showed up as I was doing the re-torque of the blade. The following morning I was notified by maintenance control that the returned parts contained a new outboard liner. At this time I could not recall installing the liner.one of the mechanics in the repair shop was going over the returned parts and tools from the job. He noticed the removed blade still had the outboard anti-chaff liner on it; and in an unopened bag there was a new liner.in the past the prop blade came out of our company's shop already assembled (not requiring field assembly). This blade came from the manufacturer and had not been run through our [repair] shop. Corporate previously had our shop reduce our shop's inventory of spare blades and personnel to reduce cost. Thus returning blades to the manufacturer and purchasing them on an as needed basis.the plane was brought in and the blade was removed to see if the liner was there. In the past the blades did not require field assembly. Go back to shop assembly. Have an inspector oversee the rii function of the installation (who is use to performing that function). In order to save cost the company has adopted a new system of having a mechanic perform the rii function.

Google
 

Original NASA ASRS Text

Title: A Line Mechanic reports he was informed by Maintenance Control; their Repair Shop had found a new outboard anti-chaff liner with the old removed propeller parts; after he had replaced the #6 blade on the #1 prop of a DeHavilland Q400 during a field trip.

Narrative: I was called into work early to go to ZZZ1 to change an aircraft's #6 blade on the #1 prop. When I arrived at ZZZ my parts and paperwork had already been pre-pulled for me. I gathered my tools and essentials from Stores to expedite to ZZZ1. Once in ZZZ1 I assembled the seals and put the compression tool on to allow it to compress the seal over time; while I worked at getting the blade out of the hub. Maintenance Control was notified and at XB:30 estimated completion time was set. I continued to remove and replace the blade. Just as I started to install the blade it started to rain. I wanted to remove the compression tool (at the latest possible moment) and get the blade in before water got into the hub. Everything appeared normal as I torqued the blade. I ran the aircraft [engine] and performed the required test. The flight crew showed up as I was doing the re-torque of the blade. The following morning I was notified by Maintenance Control that the returned parts contained a new outboard liner. At this time I could not recall installing the liner.One of the mechanics in the repair shop was going over the returned parts and tools from the job. He noticed the removed blade still had the outboard anti-chaff liner on it; and in an unopened bag there was a new liner.In the past the prop blade came out of our company's shop already assembled (not requiring field assembly). This blade came from the manufacturer and had not been run through our [repair] shop. Corporate previously had our shop reduce our shop's inventory of spare blades and personnel to reduce cost. Thus returning blades to the manufacturer and purchasing them on an as needed basis.The plane was brought in and the blade was removed to see if the liner was there. In the past the blades did not require field assembly. Go back to shop assembly. Have an Inspector oversee the RII function of the installation (who is use to performing that function). In order to save cost the company has adopted a new system of having a Mechanic perform the RII function.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.