PC  Pack Controller 
PC  Packing Card 
PC  Personal Computer 
PCA  Positive Control Airspace 
PCA  Portland Cement Association 
PCB  Printed Circuit Board 
PCD  Performance Compliance Document 
PCDM  Primary Contactor Driver Module 
PCDS  Primary Contactor Driver System 
PCE  Personal Consumption Expenditures 
PCF  Passenger Cum Freighter 
PCM  Power Conditioning Module 
PCM  Pulse Code Modulation 
PCOS  Power Cowl Opening System 
PCPU  Primary COS Power Unit 
PCT  Percent 
PCT  Probe Compensator Temperature 
PCU  Passenger Control Unit 
PCU  Power Control Unit 
PCU  Power Controller Unit 
PD  Principle Diagram 
PD  Pitch Diameter 
PDC  Procurement Data Card 
PDC  Panel Display Catalog 
PDCS  Power Distribution Control System 
PDDC  Provisioning Descriptive Data Card 
PDF  Portable Document Format 
PDL  Portable Data Loader 
PDLCU  Privacy Door Lock Control Unit 
PDLS  Privacy Door Lock System 
PDM  Post Delivery Modification Material 
PDM  Product Data Management 
PDM  Privacy Door Module 
PDMC  Power Distribution Maintenance Computer 
PDMI  Power Distribution Maintenance Interface 
PDO  Power Door Opening 
PDRC  Procurement Data Reference Card 
PDU  Power Drive Unit 
PE  HP Stage Air Pressure 
PED  Pedestal 
PED  Portable Electronic Device 
PEDMU  Primary Electrical Distribution Management Unit 
PEF  Pylon Extension Fairing 
PEM  Performance Engineers Manual 
PEP  Performance Engineers Program 
PEPDC  Primary Electrical Power Distribution Center 
PERC  Percussion 
PERF  Performance 
PERM  Permanent 
PES  Passenger Entertainment (System) 
PES  Production Engineering Specification