The resolution will be debated tomorrow by the London Region of the Age Concern Federation, attended by representatives from its 32 London branches.
Heyday, a membership body for people near retirement, was launched by Age Concern England last year, but has missed financial and membership targets. Three senior people have resigned and 33 staff are being made redundant (Third Sector, 14 February).
Age Concern London's resolution claims that up to £16m has already been spent on Heyday. It demands an investigation by an external organisation.
Gordon Lishman, director-general of Age Concern England, said he was concerned about the resolution.
"In any federal movement there are likely to be disagreements with the centre," he said.