NEW YORK ( TheStreet) -- What do you do if your frequent-flier miles are grounded when an airline has to cancel flights and curb employee rolls just to stay airborne?
American Airlines customers may be soon on the receiving end of such a lesson, and their experience will be a good case study on what all frequent-flier consumers should expect if it happens to them. American announced this month that it is laying off up to 4,400 employees and cutting back on flights heading into the busy holiday season. The airline had already filed for bankruptcy protection late last year and followed that up with plans to cut back on employee rolls to save money on high labor costs. This could be a nightmare for those who like to collect and redeem AAdvantage miles. Already, American flight cancellations are well above industry averages, with about 2.1% of all global flights grounded, compared with 0.4% for the rest of the industry, according to the website FlightAware.com. That has American Airlines frequent-flier customers -- all 66 million of them -- wondering if the company will go under and asking what would happen if it does. It's a fair question, and one any frequent flier should get answers to if they find themselves in the same situation. Here are five measures to take if your flier miles are in similar jeopardy: Know the difference between Chapter 11 and Chapter 7: American is under Chapter 11 protection, meaning it is allowed to continue operating, and AAdvantage customers won't see any change in service or rewards from their frequent-flier miles. But if an airliner falls from Chapter 11 to actual liquidation under Chapter 7, expect big changes. In that scenario, frequent-flier customers would likely see their programs sold off to another big airline company to be rolled into the new airline's frequent-flier program with little change in service and their miles intact.