Commuters and rail passengers should continue to expect severe delays as problems with the Piccadilly line continue .
The Overground is part suspended, but other lines are reporting a good service.
The problem with the Piccadilly line stretches back to last month and is anticipated to continue whilst repair work is carried out.
On Thursday morning (December 8) the Piccadilly line reported "severe delays" once again and said a shuttle train and bus service is operating between Acton Town and Rayners Lane.
A London Underground (LU) official said repairing one train takes two days.
"We don't have a timeline for it exactly, the problem with the wheels between 23 to 25 November knocked out two days to fix the train and we are repairing two trains a day," getwestlondon were told.
There are currently 56 trains on the line and in order to run a "good service", 70 are needed.
Although the London Undergournd is saying it could be "another week", commuters should not get their hopes up as there could be potential hurdles to set repair works back.
LU has said if there is any adverse weather, it could mean trains will have to be pulled once again due to damaged wheels.
As it currently stands, it said: "We have had conditions improve and they're not being damaged as much as they were - but it will depend on the weather."
If the tube was over 15 minutes late, passengers can claim a refund on the TfL website .
They will be backdated to November 24, but in an unfortunate piece of irony, TfL has said due to the large volumes of people, the money will take time to refund.
On the London Overground, there is no service between Romford and Upminster due to a faulty train.
On the TfL website, it states of the Piccadilly line: "We have had to take some Piccadilly line trains out of service to repair their wheels, which means that we do not have a full fleet available.
"Therefore, a reduced service is operating on the Piccadilly line.
"Please allow extra time for your journey or consider using other routes.
"We are working around the clock to make the wheels safe, so that we can return to a good service as quickly as possible.
"London Underground tickets are being accepted on local buses, Chiltern Railways, Great Western Railway, South West Trains, Great Northern and London Overground Customers for stations between Ealing Common and Rayners Lane should change at Acton Town.
"Customers for stations between Rayners Lane and Uxbridge should use Metropolitan line services.
"A shuttle train service operates between Acton Town and Rayners Lane and a bus service operates between Acton Town and Rayners Lane calling at Hanger Lane for the Central line instead of Park Royal which is nearby."
The issue is caused by fallen leaves.
In a statement, TfL says: "Around this time of year we tend to experience problems with wheels on some trains.
"Areas of the tracks become slippery due to large quantities of leaf fall, and cold or wet weather. On slippery tracks the Piccadilly line train wheels can lock when braking, causing 'flats' to form.
"This damages both the wheels and the track.
"In order to repair the wheels we have had to take a large number of Piccadilly line trains out of service."
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