What is one major challenge in maintaining Low Observable aircraft?

Maintaining Low Observable aircraft presents unique challenges primarily because these aircraft are designed to operate with minimal radar signatures. Ensuring that repairs maintain the integrity of their stealth capabilities is critical. This involves using specific materials and techniques that do not interfere with the aircraft's stealth features. If repairs are made incorrectly or with non-compatible materials, it could increase the aircraft's visibility to enemy radar, undermining its operational effectiveness and mission success.

The complexity of materials used in Low Observable technology means that any maintenance action has to carefully consider the impact on the aircraft's designed low observability. This necessitates specialized training for maintenance personnel, adherence to strict repair protocols, and access to unique parts that align with the stealth mission profile. Ensuring repairs do not compromise stealth capabilities, therefore, stands out as a primary concern in the maintenance of these advanced aircraft.