StandardAero Engine Fan Blade Removal

Team members required: Two

Description:

The pilot reported a bird strike on landing rollout with power lever at idle. You and your team have already borescoped the high-pressure compressor (HPC) verifying no damage to the core of the engine. 

This event will test your ability to remove the fan blades from aHoneywell TFE731 turbofan engine and then replace it.

This event will require technicians to remove the fan blades in auniform manner to prevent shingling of the mid span dampeners andthen reassembly the engine with a replacement fan blade.

INSTEAD OF THE STANDARD 15 MINUTES, EACH TEAM WILL ONLY HAVE SIX MINUTES TO COMPLETE THIS EVENT.

References:

Light Maintenance Manual Removal of Fan Blades (steps D.(1)(b)-(e))

Light Maintenance Manual Installation of Fan Blades (steps C.(1)(e)-(j))

Note: these are references only that explain the steps of removing and reinstalling fan blades, each team will be briefed on the procedures immediately before competing.

Tools and equipment list:

Hand tools and silver pencil will be provided.

Instructions:

A) Number fan blades & remove each fan blade from fan hub

B) Reassemble with replacement blade

Scoring:

Scores will be calculated according to the standard score sheet. A ten second bonus will be given to teams that reassemble the fan blade.