Skip to main content

Lock wire/ safety wire

This a crucial process that needs to be applied to the nuts and bolts that are prone to vibration. Many reports of the aircraft before the application was due to loosening of nuts due to vibration.

With the help of this process the nut is applied with certain amount of tension even after it has been fully tight. This prevents the loosening due to vibration.

It is a positive locking device that prevents fastners from lossening. Another significant importance of such device can be that it gives a visual assurance that the nuts are tightened rigidly in place.
However, the most important part of this device is the twist direction. This lock device should be in such manner that the nut is under tension in the direction of tightening.

Comments

Post a Comment

Popular posts from this blog

ATA numbering system

 An aircarft has a lot of parts, manufacturing them is one thing maintaining them is some other level challange. Thus to describe what needs to be done for what part requires a lot of documentation.  The easy way engineers have come up is to name each section of the aircraft as different title numbers.  ATA- Air Traffic association. It was created by people in ATA so called ATA chapters.  with 100 chapters ATA  So when some one says ATA chapter 72 it will always mean engine. ATA 27 flight controls ATA 32 landing gear ATA 72 is engine  and so on If we go even deeper. ATA 72-00-01 is fan module ATA 72-00-02 is core module ATA 72-00-03 is HPT Module ATA 72-00-04 is LPT module ATA 72-00-05 is AGB module and so on
Post a Comment
Read more

Understanding DO 178C (Safety critical avionics software)

DO-178C (Document for Operational) What Is DO-178C? DO-178C , officially titled “Software Considerations in Airborne Systems and Equipment Certification,” is a set of guidelines published by RTCA (U.S.) and EUROCAE (Europe). It provides a rigorous framework to plan, develop, test, and certify software used in aircraft systems , ensuring that the software is both safe and compliant with regulatory requirements. It is widely accepted by FAA , EASA , and other aviation authorities worldwide. Why DO-178C Is Important Airborne software can impact human lives . Whether it’s controlling engine thrust, displaying flight routes, or automating cabin pressure, a software error could have catastrophic consequences . DO-178C ensures: Safety-critical systems behave predictably Software is free from unintended behavior Traceability exists between requirements, code, and tests Key Principles of DO-178C 1. Software Levels (DAL – Design Assurance Levels) The stringency of testing and proce...
Post a Comment
Read more

Different Modules of Aircraft engine

There are mainly 17 different modular structures in an Aircraft engine. 1. Fan module. a) Spinner Code b) Fan blades c) Fan forward Case d) LPC stator e) LPC rotor f) Fan shaft g) Fan frame 2. Core module a) HPC Stator b) HPC rotor c) compressor rear frame d) combustor e) HPT stage 1 module assy 3. HPT module a) HPT stator b) HPT rotor 4. LPT module a) LPT assy b) Turbine rear frame 5. AGB- Accessory Gearbox
Post a Comment
Read more