Rear suspension arms

Nissan Qashqai 09 plate  OSR  & NSR  suspension arms a light scrapping with the blunt end of the corrosion assessment tool and a tap with plastic end will expose it I've failed a few NOW

In the first picture I agree totally 100% corroded through. The second picture looking like the opposite side of the vehicle, comparing the holes in each arm, would it not be reasonable to think that the jagged edge on the hole in the arm (picture 2) was caused by something like this...


  

I've seen this before where such a jack is used to support the lower arm in those holes to prevent slippage while changing springs and shock absorbers. 

I agree I zoomed into both pictures and could see the thinness of it. I was just simply asking if the elongation could have been caused by the typical jack I uploaded?

Your thumb is too strong mate 

Dynamo trade test lads will repair what they see 👀  And don't go looking for faults and corrosion on old cars like we do most who come to my test lane want a job sheet on what they have to fix and if they have to service it aswell I'VE already done most of it for them 😂😂

The 2nd picture was the NSR  and I actually put my thumb pressure through it  and I could open it up like a tin of beans so I failed  both of them  on excessive corrosion  and  I thought on  what I couldn't see 👀  

That is why I posted post number 4 with the picture nitros44, however like others have said the manual specifications have moved on and ideas have changed. reading the up to date information it says...


(b) A suspension component:



(i) excessively damaged or corroded

(ii) fractured or likely to fail                       Major

Now does that mean excessively damaged but corrosion is a stand alone just meaning corroded or does it mean excessively damaged and excessively corroded, because if not, then a testers opinion of a suspension component being corroded could put a lot of vehicles in the breakers yard very much unnecessarily.  

This is just another example of why I pointed out about the experience and understanding of a person writing the manual. 

I would read that as excessively (either) damaged OR corroded.
Which would be the same as excessively damaged OR excessively corroded.

That is how I  I based my initial option on failure  on both rear suspension arms stealth and why I failed the pair of them !!!