This all depends on the person doing the check and if you are outside your 90day.
Instructor doing the check.
Outside 90day rule.
Instructor logs PIC and student logs Dual
Inside 90day rule
If the Instructor has high hours and can't be arsed logging another 30 min flight. Student PIC and Instructor dosn't log anything. But its the instructors call, it can be given but not demanded.
Other than that Instuctor PIC student Dual.
None Instructor Club Member doing check.
Outside 90 days.
The checking pilot must log PIC or its an illegal flight Student logs nothing. After check the student must then go and complet 3 circuits before taking any PAX on board. But as below you get into all sorts problems with who pays for the flight. In this situation it gets really dodgy and into some very grey areas. Who ever logs PIC is opening themselves up for all sorts of hassels if anything goes wrong.
Inside 90 days.
If a none commercial pilots logs it and student pays for it. It breaks the regulations regarding PPL's and cost sharing of flights. So whoever pays for the flight must log it. The other pilot logs nothing.
PICUS (or P1 U/S) is defined in Lasors in one of the appendix.
There are ONLY 3 times a pilot can log PICUS.
1. Succesfull Completion of a skills test.
2. When doing an Intergrated commercial pilots course.
3. Subject to the approval of the CAA co-pilots on flying sectors multi crew.
You can't use it at ANY other time.
It is quiet a common mith that you can log PICUS (P1 U/S) for club checkouts. But really nobody gives a toss. Instructor will put down PIC and Instructing hours so they are bullet proof . What a PPL puts down isn't really here nor there in the grand scope of things. I suppose if you only did 12hours in your 2nd year and 3 hours of you 6hours PIC time was actually logged as PICUS on check outs the examiner who revalidated you SEP might get a bollocking from the CAA if they found out. But thats their problem not the ppl's. If you did log PICUS and the examiner refuses to sign you off for another 2 years there is not alot you can really do about it.
The only time this does become an issue is if you are a wannabie and have to meet the 100hrs pic time for issue. They can and do refuse to issue. Its pretty easy for them to check as well because you should only have 1 max 5 PICUS entrys when applying for your CPL.
1. PPL test
2. IMC test
3. CPL test
4. IR test
5. MEP test
So if you have more than those entrys, unless the flight tallys with your ratings page your stuffed.
MJ