Prepare for the Delta 737 PA-LOD Exam with flashcards and multiple choice questions. Each question includes hints and explanations, ensuring you're ready for exam day!

Multiple Choice

What is the recommended ground de-icing/anti-icing procedure on the 737?

Ground de-icing and anti-icing is a careful, stepwise process that protects the aircraft before flight. The recommended approach is to follow Delta’s de-ice procedures, apply the approved anti-ice fluid to the airframe as directed, observe the required hold times so the fluid can do its job, and then check for any recontamination before taxiing and takeoff. This covers both removing existing ice and preventing new ice from forming during the hold, which is crucial because some ice can be hidden and visible frost isn’t the only risk. Hold times ensure you’re within the window where the fluid remains effective, and the recontamination check confirms there isn’t new icing after the hold. The other options aren’t appropriate because de-icing after takeoff is unsafe and generally not permitted, relying only on visible frost can miss non-visible ice, and windshield cleaner doesn’t address airframe ice at all.

Ground de-icing and anti-icing is a careful, stepwise process that protects the aircraft before flight. The recommended approach is to follow Delta’s de-ice procedures, apply the approved anti-ice fluid to the airframe as directed, observe the required hold times so the fluid can do its job, and then check for any recontamination before taxiing and takeoff. This covers both removing existing ice and preventing new ice from forming during the hold, which is crucial because some ice can be hidden and visible frost isn’t the only risk. Hold times ensure you’re within the window where the fluid remains effective, and the recontamination check confirms there isn’t new icing after the hold. The other options aren’t appropriate because de-icing after takeoff is unsafe and generally not permitted, relying only on visible frost can miss non-visible ice, and windshield cleaner doesn’t address airframe ice at all.