Which component must be intact for the escape slide to be serviceable?

For an escape slide to be serviceable, it is crucial that all relevant components are intact and functioning properly. The pressure gauge plays an important role in monitoring the slide's inflation and ensuring that it has the necessary pressure for deployment in an emergency. If the pressure gauge is faulty or inaccurate, it may not provide the crew with the information they need, potentially compromising the slide's effectiveness during an evacuation.

Additionally, the cosmetic cover is significant because it protects the slide from environmental damage and debris that could interfere with its deployment. If the cover is damaged or missing, there is a risk that the slide could become contaminated or may not deploy correctly due to exposure.

The girt bar stowage is another critical element, as it secures the slide in its stored position and facilitates its rapid deployment when needed. Without proper stowage, the escape slide may not be able to deploy correctly, which is essential for ensuring a quick and safe exit from the aircraft.

Therefore, all these components—the pressure gauge, cosmetic cover, and girt bar stowage—must be intact for the escape slide to function properly and be considered serviceable in an emergency situation. This ensures the utmost safety for passengers and crew during an evacuation.