We have completed several inspections over the past month with data plates missing from Fire Pumps. This is a yellow tag itself , however it creates a red tag as we don't have the performance data for the fire pump to compare our annual test to. Is there any procedure to get this information? We have asked the properties for the original record and they don't have. Most of these pumps are 20 to 30 years old. Will the manufactures be able to help, I didn't see any thing in NFPA 20 on this issue. Any thought or suggestions are very welcome.