The aero has an ISA bus.

[C] From: JLSmith42
Date: Thu, 1 Oct 1998 23:32:40 EDT
Subject: Beverage Spill Repair (was: seeking innards of aero)

>  I caffeinated my aero with a cup of coffee and it did a nice ZZZZZZ!!!
>  and stopped functioning. I'm believe I blew out the power supply and the
>  hard drive and the pcmcia network card in the slot. If I replace the
>  motherboard and the hard drive, will the machine function again? 
>  i.e. Do you think I irreparably damaged the display as well? 

i had an experience similar to this with coca-cola
instead of coffee.  it spilled all over the inside; i ended up taking the
machine apart for draining, cleaning, and drying.  i'm still using it, and
have noticed no probelms whatsoever from the incident.  perhaps i was just
lucky!!  

try testing your suspect parts ( if you have that capability ) just to be
sure they are dead.  mount your HD in another computer to see if it
accepts power. ( the stock HD seems to be well sealed from external
influence.  but i suppose that all HD's are ;) )  same with your network
card.  Unless your display took a direct hit, it should probably be fine.

good luck.  just my 2 bits -- jls

Leo Smith

[C] Date: Fri, 02 May 1997 20:59:32 +0200
From: Arnaud Hubert 
Subject: Aero's serial number

Hi fellow Aeronauts,
I finally got back my Aero 10 days after taking it to maintenance for
having broken of the pins of the PCMCIA connector (I inserted the PCMCIA
SCSI card upside down, God I'm stupid).
The guy there explained to me what the serial number means:

Mine is 7435HMR40135:
7 is the factory unit.
4 is the year ('94).
35 is the week of manufacturing (the 35th of 94).
The rest is meaningless.