As per recent disclosures, Aeroflex is largely funding working capital through internal accruals and some short-term borrowings, which is normal as the business is scaling exports. Also, the company is still net debt light, so interest cost risk looks manageable for now.
The real risk to track is whether receivable days increase sharply or operating cash flow turns negative for a long period. So far WC increase looks more growth related than stress related, but it is definitely a monitorable point.