IMP Aerospace. Multi-Period Phased Sparing & LCC. By: Parker MacDonald Logistics Support Analyst. November 2013. IMP Aerospace, P.O. Box 970, Enfield, Nova Scotia, Canada B2T 1L5 Tel. 902. 873.2250 • Fax 902 873 2290 • e-mail. [email protected] Website. www.impgroup.com.
Period A spares + Period B spares =Total spares Required
Analyzer says we need 7 spares.
What is wrong with that statement?
3.42 Discards per year X 3 years = 10.26 units
Add to the 3 units required = 13.26 units
LRU 2 – 12 Discards
SRU 1B – 7 Discards
SRU 2A – 2 Discards
LRU 2 - 17 Discards
SRU 1B - 10 Discards
SRU 2A - 3 Discards
To get UDS for Period B : (A New – A Discards) = B UDS
To Calculate Total number of Spares Required:
A New + B New = Total Spares Required
Adjust any LCC costs by the applicable inflation rate.
Change the Replacement cost of the TOP LEVEL PE to $0 to avoid Acquisition costs in period 2