LPAG GCSC software change request dated March 18, 1977. This change order was originated by Walter Lowerie to revise the flight software to allow the GCMS ION Power off event. This was requested due to the assumption that Winter environment provided insufficient power to maintain the GCMS above 25 degrees Farenheit. Change orders include: Title, Originator, VFT GRP, Phone, Date, Prelim Conc, LPAG (Lander Performance Analysis Group) Signature and date and SPFPAD (software performance FPAD) signature and date, Description, Reason for Change, Related FLT Ops, Point of Incorporation, Verification Status signoffs, and Final Approvals from LPAG Chief and SPFPAD Director.