The Allied Pilots Association has reportedly cautioned its members to remain vigilant amid a significant spike in safety and maintenance issues at American Airlines Group Inc. (AAL  ).

The memo, sent on April 13, highlighted troubling trends, including tools being left in airplane wheel wells and an uptick in aircraft collisions during towing, reported Bloomberg.

With approximately 15,000 pilots represented, the union urged against rushing tasks and emphasized the importance of avoiding unsafe practices.

The notice underscores industry-wide scrutiny, referencing a January incident involving Alaska Air Group Inc (ALK  ) and United Airlines Holdings Inc's (UAL  ) recent mishaps, such as a wheel detachment and a runway overrun.

The Federal Aviation Administration (FAA) reportedly initiated a review of United, prompted by recent safety incidents, including aircraft mishaps like an incident in Houston and a wheel detachment post-takeoff.

Price Action: AAL shares are trading lower by 0.84% at $13.04 on the last check Monday.