A trip to Sao Tome which is suppose to be just a turn around, end up as a night stop. During transit check found that one of the wheel have a multiple damaged beyond maintenance manual limit. There is few cut , thread chunking cut which pass through the cut protector and exposing the carcass ply, plus there is few more circumferential cuts that makes the wheel is good enough to ground the aircraft.If we compare the damaged with reference to tyre nomenclature diagram below, it seem that the da... Read Full Story

I was in Seychelles for 3 days and as per company procedure aircraft need to be inspected after 2 days of parking. Among item to be look for during this inspection is any bird nest especially in the hidden area mainly in the wheel well. However to my suprise, i can spot it easily this time. Right on top of the nose gear steering actuator module. The mother bird still there when i spot her but she flew away when i want to took her photo. Besides any foreign object such as the bird nest, inspe... Read Full Story

Came back from flight while performing the post flight check, i've notice inrregularities at the No 5 cockpit window. This window sometime been called "eyebrow window" located on top of cockpit crew head so it is hardly noticeable if there is a defect on it.I've checked it & found that the cracked was in the middle layer as there is no feeling of the crack from outer as well as the inner surface of the window. There is three layer in this window, the middle layer that cr... Read Full Story

Winter is coming, the formation of ice on top of the wing either during flight in cold area or after aircraft parked overnight in cold weather can alter the aerodynamic of the wing which can effect the lift force during take off.To removed the ice & prevent it from reoccur, deicing fluid will be used which normally will be performed by well trained deicing team.The commonly used fluid is either of ethylene glycol or propylene glycol however the latter is more common due to the fact it is... Read Full Story

I've found this while removing the right hand heat exchangers for cleaning. The clamp was"sitting" on top of the pneumatic duct.It is posible that the ducts have been removed & reinstalled back with the top duct been normalised first, the lower duct then was reinstalled without the mechanic that done the installation aware of the contact.All pneumatic, hydraulic, flight control cable must be inspected for interference with adjacent structures to eliminate unnecessary defect ... Read Full Story

This is the place where control for refueling process took place. Located at the forward edge of right hand lower surfaces. Amount of fuel required base on the flight plan will be routed to certain tanks by controlling the switch of each tank. What unique about BBJ is that, there is additional control for auxiliary fuel tank which is located in forward and aft cargo compartment.Normally the wing tank will be filled up first followed by the center tank, any extra fuel required then will be ro... Read Full Story

One of our BBJ aircraft came back with number 2 cockpit window cracked. No 2 window is the only window that can be opened, it slide backward. This is very dangerous situation where it might lead to rapid decompression however by knowing the construction of the window itself, we can be assured that the safety is not tolerated.This window is a laminated assembly of layers of glass and vinyl or urethane. The structural inner glass pane carries pressure loads. The vinyl interlayer is structural f... Read Full Story

Summer already started and ambient temperature is now getting higher and higher everyday until September when it will start to drop again.In hot weather like this, the airconditioning system (a/c) will have to work harder in order to produce sufficient cool air to chill out the cabin. The heat exchanger is part of airconditioning system where transfer of heat from the engine bleed air back to ambient before the air further process by the air cycle machine (heart of a/c system) to produce cool... Read Full Story

Ever wonder how the replacement of aircraft wheel been done? With big in size and heavy in weight, without special tools it will be imposible to be done. Here is the general description of it so that all of us have some ideas how it is done. Depend on the organisation, in the company that currently i work with, we had a wheel change trolley where the new wheel is placed as well as the nitrogen bottle needed to charge the wheel. Aircrat will be jacked from the axle to raised it up from the gr... Read Full Story

Prior to carry out refueling of an aircraft, the quality of the fuel from the fuel truck (bowser) must be checked to ensure it cleanliness as well as the present of water. Dirty fuel can caused fuel filter clogged and water can frezzed at high altitude during flight thus blocking the fuel going to the engine.Normally at the bowser, there a small glass container in which fuel sample from the bowser can be collected. Visually we can check the cleanliness. To check for presence of water, we need... Read Full Story