Did Deregulation Affect Aircraft Engine Maintenance? An Empirical Policy Analysis
通过分析飞机发动机历史数据，发现放松管制后发动机大修间隔时间显著增加，但飞行中发动机故障并未增加，表明航空公司优化了定期维修安排，可能提高了服务质量。
This paper examines aircraft engine histories to determine if deregulation affected the maintenance of aircraft engines. The examination shows that there was a significant increase in the number of engine hours between major overhauls in the period following deregulation. Parametric analysis of time between overhauls, which controls for other variables affecting the length of the shop visit cycle, suggest that deregulation is a significant factor in the change. Logit analysis shows that engine failures, as measure by in-flight shutdowns, have not increased following deregulation. These results indicate that airlines have optimized scheduled service times and possibly improved the quality of service while paying less attention to minor problems between scheduled service dates.