Any one know if there is an option to install a 2nd hydraulic pump to an F model Aztec-(has the only pump on the left engine)? My maintenance shop tells me there used to be an option through Piper to install one on the right engine; and also Sierra Industries had an electric backup hydraulic pump. Neither are available.
Thanks
Pete

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All the parts are listed on the 337. As far as the sketch/diagram, I used the Piper Warrior (PA28-161) parts diagram as listed in the parts book. The oil cooler installation is the same in both the Maintenance Manuals. I included the copies of both the 140 and 161 parts illustrations as well as the installation instructions for the oil cooler when I submitted it to the FAA.

I believe I sent you the back side of 337 before, did you get it? Let me know. You can email me at .

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