View Full Version : GIV nose wheel excessive noise on take off
LowClimber
21st Nov 2020, 17:17
Hi
any GIV pilots around?
During take off roll the nose wheel is veeery noisy ( hard to hear callouts noisy..) And after gear retraction we can hear the wheel spinning fast for a minute or so inside the wheel well.
Did any body encounter this in a GIV? Considered normal? Other pilots in the company and mechanics can’t say for sure..
dixi188
22nd Nov 2020, 06:43
I don't know the GIV, but it sounds like failed wheel bearings to me. Get them checked.
TopBunk
22nd Nov 2020, 18:35
No GIV specific knowledge, but after take off isn't the nosewheel braked by a snubber or somesuch on retraction into the wheel well?
Is the snubber worn/missing?
mechanics can’t say for sure.
Why am I not liking this.
Bushings could have worn excessively or may even be missing at this point.
sycamore
22nd Nov 2020, 19:31
Be expensive if you end up on you nose if it`s not checked by an Engineer,not a mechanic....on jacks if necessary....
Checkboard
23rd Nov 2020, 13:17
Ask these guys:
Code 7700 (http://code7700.com/)
Thurlands
23rd Nov 2020, 15:10
Has the tyre been flat spotted
dixi188
23rd Nov 2020, 18:27
Did this happen after maintenance?
It wouldn't be the first time wheel bearing spacers have been left out.
aeromech3
9th Dec 2020, 17:45
My ancient experience with GII and GIII it was common to have rumble as the nose-wheel was quite small for the usual forward C of G and went out of true quite quickly; we did explore having a balancing rig; usually spinning it on the axle, if no flat spots and if the wheel stopped consistently at one point then a balance weight re-distribution; a repack of grease and torque worked for a while longer. After retraction it should be snubbed but these also had wear and no re lining, though Marshals of Cambridge did devise a repair scheme for this circa mid 1990's.