Which item’s pre-flight check specifies that a safety pin and seal must be intact?

Which item’s pre-flight check specifies that a safety pin and seal must be intact?

• A. Resuscitation kit
• B. M5
• C. ELT
• D. Hafex extinguisher

Answer: (D)

Safety pins and tamper seals are used on certain equipment to prevent accidental discharge and to show that the item hasn’t been opened or used. For the Hafex fire extinguisher, the pre-flight check specifically requires the safety pin to be in place and the seal intact, confirming the extinguisher is ready for use and has not been tampered with. If the pin is missing or the seal broken, the extinguisher isn’t considered serviceable. Other items on the list have different pre-flight check criteria (beyond the pin-and-seal requirement), so the explicit pin-and-seal condition points to the Hafex extinguisher as the correct item.

Safety pins and tamper seals are used on certain equipment to prevent accidental discharge and to show that the item hasn’t been opened or used. For the Hafex fire extinguisher, the pre-flight check specifically requires the safety pin to be in place and the seal intact, confirming the extinguisher is ready for use and has not been tampered with. If the pin is missing or the seal broken, the extinguisher isn’t considered serviceable. Other items on the list have different pre-flight check criteria (beyond the pin-and-seal requirement), so the explicit pin-and-seal condition points to the Hafex extinguisher as the correct item.