Well, 854 started to receive its perm OC500LE fleets back
in 2009 when they were brand new. And I remember how 854 got them
was because its perm 0405 fleets got transferred to WLDEP back then
(WLDEP did not get any new fleets replacing the outgoing Nissan
UDs). 27J 45G 48Z 49X are the ones that had been sticky to 854
since 2009/2010 era till today.
854 then continued to have several 0405s and most of them
followed 854 over to WLDEP when WLDEP took over partial duties from
AMDEP somewhere in 2013 (530U 578H 736T 755M). These 4 were
eventually replaced by brand new A22s (1451K 1472A 1553U 1554Y
1555U).
After 854 went back full AMDEP controlled in 2015, AMDEP side
continued to deploy A22s together with OC500LEs. It was when AMDEP
decided to give 171/851 full A22 fleets, 854 side had all the A22s
removed and replaced with ex-171/851 OC500LEs. Kinda lousy
move...
Next thing is AMDEP took in first batch of E500 DDs. Even though
854 received a small number of them, I noticed that 857 keep
snatching away most of the AMDEP DDs back then, leaving 854 still
left with several old bendies despite being made WAB by then. And I
still remember 854 still had such thing like 3-4 (or even more)
consecutive NWABs even during off peak. This really made me pissed
off and I did made several feedbacks to SMRT despite no
improvements made then.
854 initially did not improve much too when AMDEP took in brand
new B2 A95s last Sept, as most of these new A95s keep going to 969
instead. Only some time later when AMDEP took in B1 A95s from
KJDEP, then I started to see improvements in 854 fleet. Appreciated
that. I still notice NWABs running though but not too much
already during off peaks. Looking forward to see them go off and
replaced with B3 A95s.
Just my point of view though.