Help Understanding Accounting Statement from New Servicer

[David Gonzalez]

I have a client whose loan was recently bought and transferred to another servicer.  After much back and forth the loan servicer finally gave them the accounting. 

What do the following abbreviations mean (they are the column headers):

TRNTYP

TRNDTE

TRNDUE

BYDPMT

TRNAMT

TRNINT

ADNPMT

TRNPRN

TRNPBL

TRNINS

TRNESC

TRNEBL

TRNLTC

TRNLCB

TRNLCB

TRPTPY

TRPPBL

LTCAND 

INVBAL 

INVANP

TRNESV

I am not familiar with Loan Servicing Accounting at all so any help would be appreciated!