DY or WY block. 4. During WY check measure all brake pin lengths and write down actual size in Technical Log. 5. During QAR card replacement record in Technical Log removed and installed card identification number. 6. Tasks in the checklist are applicable to ALL aircraft unless specified otherwise with a note in bold. 7. The check intervals areas follows Daily Check - line maintenance check which is valid for 48 hours without ac utilization limitation since the last accomplishment time. Task applicability to Daily Check is indicated in the next to last column of the table with words YES or NO (no block additionally marked in grey. Weekly Check - line maintenance check which is valid for 8 calendar days (x hours) since the last accomplishment time. Weekly check is normally carried out every 7 days. Note that the higher check always covers the lower (e.g. WY covers DY. All the tasks in the checklist are applicable to Weekly Check.
