Modifies a noun

• weekend: UK Indymedia | Chaos Mass: Mayday weekend in Manchester starts.. .

• call: December 06 1973 At 06:12 in the morning a mayday call was reported by Wick radio.

• message: A mayday relay message was also broadcast to all shipping.

• relay: A mayday relay was also broadcast to vessels in the vicinity.

• celebration: Mayday celebrations thus continued there with more music and.. .

• system: Whatever solution is selected, the support by automatic mayday systems should be available to any operator involved.

Noun used with modifier

• vehicle: This information will help in distinguishing between various vehicle Mayday systems such as passenger car systems, commercial vehicle systems or portable systems.

• word: On January 31st at 13.30hrs, a spoken word mayday call was received from the same ' vessel ' reporting that she was sinking.