PT Perusahaan Listrik Negara (Persero) (PLN, English: State Electricity Company) is an Indonesian government-owned corporation that has a monopoly on electricity distribution in Indonesia and generates most of its electrical power, producing 176.4 TWh in 2015. It was included in the Fortune Global 500 lists of 2014 and 2015.
As part of the preventive maintenance checklist, the field officers record information related to customers and electrical devices managed by PLN in their respective work areas. Its purpose of ensuring that their customers will receive the electrical services provided by PLN.