To confirm its status, find the bus after its 3D2N holiday
programme with 143 
Today's timing:
0812 1143 1510 1857 2212 hrs from TPY.
SBS9818A took the 1510 hrs bus.
Here's my analysis of the happenings at TPY then.
When i got to the berth @1445 hrs, there was already a queue,
filling up the metal railings. The 2 earlier buses, SBS 9021 G and
SBS 9163 E, departed TPY @1454 and 1503 hrs respectively. By 1505
hrs, the queue has already reached to the area where the
information board is.
At 1505 hrs, SBS 9529 J came back. Today it was driven by a chinese
driver. The indian driver that drove the bus yesterday drove SBS
9015 A. It came back with SBS 9529 J. Not long after @1508 hrs, SBS
9044 R came back.
Some old folk saw the bus coming back and went up the bus. The
driver said "no-no go back to the queue" This didnt happen
yesterday on my 1528 hrs trip. Well lucky the rest stayed at the
queue berth.
The driver rushed to the office, to the toilet and back to the bus
again at 1511 hrs. The passenger load is almost the same as
yesterday's 1528 hrs trip.
The next bus, SBS 9015 A departed @TPY @1519 hrs. Apparantly the
boarding time for 9529 J was around 2-3 min.
According to sources, SBS 9015 A overtook SBS 9529 J @Chinatown. I
believe SBS 9044 R will catch up with SBS 9529 J @West Coast/Teban
Gardens.
Cheers! 