TrizecHahn York Plaza Explosion Incident Summary, March 2002

NYC 9/11 Public Portal Document « . *

TrizecHahn Office Properties Inc. 1114 Avenue of the Americas

TrizecHahn OFFICE PROPERTIES 31st Floor New York, New York 10036 Tel 212 382 9300 Fax 212 382 9333 Gerard V. Schumm Vice President Northeast Region 212.382.9392

March 14, 2002

Ms. Marolyn Davenport Senior Vice President Real Estate Board of New York 570 Lexington Avenue New York, New York 10022

Re; One New York Plaza Explosion - December 1, 2001

Dear Marolyn:

The following is a brief summary of the explosion that took place at One New York Plaza on December 1, 2001. It is being provided for informational purposes only and represents, to the best of our knowledge, all available information on the incident.

• As a result of the steam turbine failure of August 11, 2001, a decision was made to dismantle the 6,000-ton steam driven refrigeration machine at One New York Plaza. • Demolition of the equipment began in mid November. • Towards the end of November, the removal of the condenser commenced. • On December 1, 2001, during the actual demolition process, the titanium tube bundle ignited. • Efforts were made to extinguish the fire, but initial attempts were unsuccessful. • The NYFD arrived on the scene and the effort to extinguish the fire continued. • At that time the fire was contained within the shell of the partially demolished condenser. • At some point in time during the process water was introduced and the explosion ensued. • To the best of our knowledge there were no serious injuries. • The force of the blast knocked over several lengths of block walls in adjacent areas. • Equipment damage in the mechanical room was minimal.

Based upon your initial inquiry, I realize that there may be interest among the REBNY membership to learn from the events at One New York Plaza. Extensive tests have been

NYC-WTC_000143756