What are those REMOVE BEFORE FLIGHT tags?

, , Leave a comment

What are those red warning pins on planes Today, we’ll be talking about the “REMOVE BEFORE FLIGHT’ tags and warnings you see on parked aircrafts. Have you ever wondered why parked aircrafts have these red tags with huge letters saying REMOVE BEFORE FLIGHT? At the end of the red flag is mostly either a cover or locking pin because a lot of the parts on the aircraft are vulnerable and need to be properly covered or secured before a long parking time. For example the pitot tube, which measures the airspeed, has a tiny little entry hole at the front which gives flies or other small insects a perfect habitat or if your plane is parked at an airstrip in the desert, sand could accumulate over time in the pitot tube and could lead to a false reading. Similar situation during the winter. Melting snow could enter the tube and freeze up again blocking your pitot tube. Same comes with locking pins. Locking pins or bolts are very often used to prevent rudders, ailerons and stabilizers from flapping about in the wind and damaging the hinges and joints over time. Therefore most little sports planes have a little hole in the yoke to fit a bolt in place at a neutral position of the rudder to block the moving when exposed to windy conditions. Big airliners, which sometimes are being parked outside for entire winter or summer, have their complete engines covered up to prevent turbines from windmilling and getting damaged due to friction without lubrication of the inner parts of the turbine. Even the doors and all the other vents and holes are being completely sealed up to reduce stand damage. A technician once told me that they had to remove the entire birds nest at the rear of the auxiliary power unit. Therefore aircraft manufacturers have come up with an easy and reliable solution, cover-up what is valuable and attach a huge “REMOVE BEFORE FLIGHT“ sign on to the cover or locking pin. So make it stand out for the pilot whilst performing his outside check I hope I’ve solved another aviation related question for you. If you enjoyed the video give me a thumbs up and subscribe my channel for more aviation related facts and more. See you next time


Leave a Reply