1. Reinstall the US Chart of Accounts.

2. Run these SQL statements to reassign any accounts back to the defaults from the Configurable Chart and delete the types from the US Chart:

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='data_account_type_cash') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_cash'); 

DELETE from account_fiscal_position_template a using ir_model_data i where a.id = i.res_id and i.model = 'account.fiscal.position.template' and i.module = 'l10n_us'; 

DELETE from account_tax_template a using ir_model_data i where a.id = i.res_id and i.model = 'account.tax.template' and i.module = 'l10n_us'; 

DELETE from account_chart_template a using ir_model_data i where a.id = i.res_id and i.model = 'account.chart.template' and i.module = 'l10n_us'; 

DELETE from account_account_template a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.template' and i.module = 'l10n_us'; 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_cash'; 

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='conf_account_type_equity') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_equity'); 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_equity'; 

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='data_account_type_expense') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_expense'); 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_expense'; 

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='data_account_type_income') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_income'); 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_income'; 

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='data_account_type_income') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_income'); 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_income'; 

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='data_account_type_liability') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_liability'); 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_liability'; 

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='data_account_type_payable') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_account_payable'); 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_account_payable'; 

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='data_account_type_receivable') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_account_receivable'); 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_account_receivable'; 

UPDATE account_account set user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'account' and i.name='data_account_type_bank') where user_type = (select a.id from account_account_type a,ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_credit_card'); 

DELETE from account_account_type a using ir_model_data i where a.id = i.res_id and i.model = 'account.account.type' and i.module = 'l10n_us' and i.name='user_type_credit_card';

3. Uninstall the US Chart of Accounts.