A321
Maintenance Airframe; Maintenance Powerplant
Time Pressure; Communication Breakdown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action; General Flight Cancelled / Delayed
Aircraft; Human Factors; Procedure
Aircraft X - log page; item #1 RNP placard [was] missing on center console. Looked up [the] EO (Engineering Order) for installation of RNP AR (Required Navigation Performance Authorization Required) 0.3 placard. Newly inducted aircraft that [was] delivered RNP.3 capable from Airbus. Looked up S.B. (Service Bulletin) XX-XXXX in [the] AMM (Aircraft Maintenance Manual) [for the] aircraft.Aircraft X was scheduled but not complied with. Called Maintenance Control. They could not answer any questions on what had been complied with or not. They kept pressuring [to] just put a placard on. I said I needed clarification [on] what has been complied with per [the] EO; REV AF step 2. A copy of this EO should have been emailed to [Company] Maintenance Control; Company Engineering. But Maintenance Control could not verify.Time was short for departure. We called Engineering. They verified that Aircraft X was received from Airbus RNP.3 capable. I installed the placard and verified in Trax those were the original MMR's (Multi-Mode Receiver) from Airbus. I should have completed an EAR (Engineering Authorization Resolution) from Engineering but I didn't. On the log page I just referenced the EO.Lack of resources. And peer pressure from Maintenance Control. Better communication and ability to view records of compliance. Safety before on time performance!!!
Technician reported a new aircraft was delivered without correct cockpit placards; causing a delay in updating aircraft records and installing missing placards.