WW1 Royal Navy Detention Codes

[Petals]

My grandfather Michael O'Brien, Stoker, Royal Navy was sentenced to  35 days detention December 1918. He was at Pembroke 11, Chatham.
The record reads -
Sentenced by warrant of 7/12/18 to 35 days detention list 18/7480

Does anyone have any ideas regarding this code?

[mmm45]

I dont think its a code i think its the 7480th list of 1918.

Does it say why on his record he got 35 days?

Ady

[Petals]

Thank you mmm45 for your information. Unfortunately it gives no reason  for his detention   below 18/740 reads -

x Enter from data
Trae bcofl?
(Ec5173/8/31)
O ride Ec5173/31

Would  records be kept regarding detention?

[GeneCat]

My grandfather had the same thing on his service record. Around the same time too.. all 1915 to 1919-ish, all at Pembroke I, Chatham Dockyard.

Four occasions in trouble:
7 days cells, Insolence & disobedience.
10 days cells, "run"  AWOL.
36 days cells, AWOL again but later down the page it says Run removed.
& 14 days for something else.

But mine all had reasons listed (except the last one). If it was just 45 days it probably wasn't for anything too bad. At a guess.  

Modified: Sorry misread. My record says Pembroke I not II.