About six months after 9/11 a light aircraft crashed into a building
in Italy, I think in Naples, but I'm not certain of the exact
location. At the time terrorism was not blamed, instead there was talk
of the pilot dying at the controls and 'just happening' to crash into
the tallest building in the area. I'm curious as to whether there is
any further information on this event. Has a definite cause been
established? If this takes more time than I would expect for this
answer, I am quite happy to add a tip on answering.

Dear rissos-ga 

According to an investigation by the Italian National Agency of Air
Security, the cause of the plane crash when Pilot Luigi Fasulo, 67,
flew into the Pirelli Tower in Milan killing two workers on April 18,
2002, was most probably that the pilot couldn't steer the aircraft
through technical difficulties. There was also "ambiguous, inadequate
and contradictory" information from the Control Tower.

A news article on the findings (item 7) appears at
http://www.nctimes.net/news/2003/20030206/wwww.html
The article appears on other news sites.

There is a Italian language news site which provides a little more
information and images.
http://www.corriere.it/Primo_Piano/Cronache/2003/02_Febbraio/05/pirellone.shtml

If you cannot read Italian, Google carries out a translation of the
page (good enough to get the gist of the story).

http://translate.google.com/translate?hl=en&sl=it&u=http://www.corriere.it/Primo_Piano/Cronache/2003/02_Febbraio/05/pirellone.shtml&prev=/search%3Fq%3D%2522%2Bfasulo%2522%2B%2522Adalberto%2BPellegrino%2522%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26safe%3Doff%26sa%3DG

Use the link below to access other news reports in Italian or chose
the alternative Google translation.

I hope this answers your question. If it does not, or the answer is
unclear, then please ask for clarification of this research before
rating the answer. I shall respond to the clarification request as
soon as I receive it.
Thank you
answerfinder


Search strategy
Identified the incident by the terms: italy "plane crash" building.
Found a news report which gave the name of the pilot and a spokesman
for the Italian National Agency of Air Security. Then the search
terms:
"fasulo" "Adalberto Pellegrino"
://www.google.com/search?q=%22+fasulo%22+%22Adalberto+Pellegrino%22&btnG=Google+Search&hl=en&lr=&ie=UTF-8&oe=UTF-8&safe=off

Hi answerfinder,
Sorry about the delay in rating this, particularly when you gave such
a prompt answer. The information provided was exactly what I was
looking for. The result is a little scary :
"In December 2002, hearings opened for 67 Linate air traffic
controllers accused of regularly abandoning their posts to play soccer
or go to parties"
(From the first link provided).
As if passengers didn't have enough to worry about!
Thanks for your help,
~Rissos

Dear rissos-ga,
Thanks for the tip, and keep you feet firmly on the ground.
answerfinder-ga