Abnormal taxiing


Accidents have occurred to aeroplanes taxiing when one brake has failed, or a nose wheel steering system has jammed. Collisions have occurred when the pilot has misjudged his clearance from an obstruction such as another aircraft, so it is logical that we should allow as much space as possible between ourselves and collision hazards while taxiing. 
                                      We should also be aware of any abnormalities, such as one brake pedal developing greater movement than the other. However, other abnormalities may occur, and if we can detect these and take appropriate action early enough we may be able to prevent an accident. If for example we find that we need to apply steering or braking continually in one direction without an obvious reason such as a crosswind or sloping taxiway, we should suspect a binding brake or a problem with the steering system, either of which may cause serious problems on take-off.
                        If we require a higher throttle setting than usual to maintain our normal taxi speed, it may be that both the brakes are binding, or it may be that we have forgotten to remove the parking brake. Taxiing the aircraft with brakes applied is likely to cause the brakes to overheat, damaging them and perhaps starting a fire, which reportedly happened to a Cessna 172 recently.
                                We should all know what actions we should take if the brakes do catch fire. However, if we know our aircraft and can detect problems before they become serious, we should hopefully never have to take them.
 SPSINGHAME.COM

Comments

Post a Comment

Popular posts from this blog

Cessna 152 Magneto Check

MAGNETO CHECK. NEVER ADVANCE TIMING BEYOND SPECIFICATIONS IN ORDER TO REDUCE RPM DROP. Too much importance is being attached to RPM drop in single ignition. RPM drop on single ignition is a natural characteristic of dual ignition design. The purpose of the following magneto check is to determine that all cylinders are firing. If all cylinders are not firing, the engine will run extremely rough and cause for investigation will be quite apparent. The amount of RPM drop is not necessarily significant and will be influenced by ambient air temperature, humidity, airport altitude, etc. In fact, absence of RPM drop should be cause for suspicion that the magneto timing has been bumped up and is set in advance of the setting specified. Magneto checks should be performed on a comparative basis between individual right and left magneto performance. a. Start and run engine until the oil and cylinder head temperatures are in normal operating ranges. b. Advance engine speed to 1700 RPM. c. Tu...
Read more

Brake System Cessna 172

                             BRAKE SYSTEM -MAINTENANCE PRACTICES              1. Description and Operation A. The hydraulic brake system is comprised of two master cylinders, located immediately forward of the  pilot’s rudder pedals, brake lines and hoses, and single-disc, floating cylinder brake assemblies located at  each main landing gear wheel. B. The parking brake system is comprised of a pull-type handle and mechanical connections which are  linked to the rudder pedal assembly. Pulling aft on the brake handle applies mechanical pressure to the  rudder pedals, activating the brakes and locks the handle in place. Turning the handle 90 degrees will  release the parking brake and allow for normal operation through the rudder pedals. C. Brake operation is accomplished by pushing on the upper part of each rudder pedal. This motion i...
Read more

McCauley Propeller Installation fixed pitch

Image
Propeller Installation for all fixed pitch propellers (except 1A162 model propellers).                   WARNING: MAKE SURE THE MAGNETO IS GROUNDED BEFORE INSTALLING  THE PROPELLER OR CONNECTING EXTERNAL POWER.                NOTE: McCauley recommends that propeller mounting nuts (if applicable) be replaced at each  propeller installation, whenever possible. However, nuts may be reused providing the threads are in good condition and the locking material prevents turning of the nut on the  stud by hand. Propeller mounting bolts must be magnetic particle inspected in accordance  with ASTM E-1444 or replaced whenever the propeller is removed from the engine.                NOTE: The aircraft maintenance manual or STC installation instructions should always be  consulted for any specialized procedures applicable to a specific aircraft....
Read more