23 July 2010
The CAA has issued an Emergency Mandatory Permit Directive concerning the Thruster T600, T300, TST series microlights, stating ‘Exfoliation Corrosion Splits Aluminium Flying Strut Ends’.
Under the subheading ‘Reason’ the MPD states, ‘Corrosion splitting in this primary structure may weaken the part sufficiently that it may result in the loss of a wing and consequent loss of the aircraft.’
Under ‘Compliance’, the MPD adds, ‘Before further flight, from the effective date of this MPD (24 July, 2010), carry out the inspection called up in Thruster Air Services Service Bulletin TAS/SB 013. If any crack is found replace the parts with sound fittings. Inspection may be carried out by the pilot/owner. Carry out further inspections every 10 hours /1 month whichever is sooner.
Replacement of the strut ends with steel end fittings terminates the need for repeat inspection.’
For further enquiries about this MPD, contact Aircraft Certification Department, Civil Aviation Authority, Safety Regulation Group, Aviation House, Gatwick Airport South, West Sussex, RH6 0YR, United Kingdom. Tel 01293 573726, fax: 01293 573976 or email [email protected] <a href=”http://www.caa.co.uk/application.aspx?catid=33&pagetype=65&appid=11&mode=detail&id=4173″>Click here for more</a>
