23/12/2011 spotting:
PA231 along Simei Street 3 @ 1102hrs (proceeding to CGH)
4/1/2012 spotting:
PA221 along Upp Changi Rd @ 1324hrs (proceeding to 995 call)
6/1/2012 spottings:
PA221 along Simei Street 3 @ 1804hrs (proceeding to CGH)
1/3/2012 spottings:
PA221 along Simei Street 3 @ 1604hrs (returning case from CGH)
5/3/2012 spottings:
PA231 along Simei Street 3 @ 1207hrs (returning back to stn)
20/3/2012 spotting:
PA221 along Simei Street 3 @ 1541hrs (returning back to stn)
11/4/2012 spotting:
PA221 along Simei Street 3 @ 1127hrs (proceeding to 995 call)
9/5/2012 spotting:
PA221 along Simei Street 3 @ 1224hrs (proceeding to CGH)
29/5/2012 spotting:
PA221 along Simei Rd @ 0902hrs (proceeding to CGH)