NFPA Journal - Spring 2022 - 14
Dispatches
CODES & STANDARDS
According to a 2021 study published by researchers at
BEYOND FOAM
THE LATEST EDITION OF NFPA 409,
STANDARD ON AIRCRAFT HANGARS,
ALLOWS USERS TO CONSIDER
ALTERNATIVES TO FOAM SUPPRESSION
SYSTEMS FOR AIRCRAFT HANGARS
By Angelo Verzoni
I
n 2020, a foam fire suppression system
activated in a Delta Air Lines aircraft hangar
at Los Angeles International Airport. Within
minutes, the cavernous space was packed from
floor to ceiling with thick white foam. When
employees opened the hangar bay door, foam poured out
onto the nearby tarmac.
In a tweet, one aviation blogger called it " a very big and
expensive mess. " A Delta spokesperson told the aviation news
website simpleflying.com that an unspecified fire suppression
system malfunction caused the discharge of foam.
14 | NFPA JOURNAL * SPRING 2022
the University of Maryland, about a dozen incidents like
this occur in the United States each year-and that figure is
slowly increasing. On average, each incident results in about
$100,000 of property damage, the study found.
But changes to the 2022 edition of NFPA 409, Standard on
Aircraft Hangars, released in the fall, allow for alternative
methods of hangar fire protection and may help limit those
losses. " In the past, for large hangars, foam was the only fire
protection method prescribed by NFPA 409, " said Matthew
Daelhousen, an operations chief engineer at FM Global and
chair of the NFPA 409 technical committee. " Now there are
other options available. "
Not just accidental discharge
While incidents like the one in Los Angeles and those
reported in the University of Maryland study served in part
to influence NFPA 409 committee members to write the
recent changes, Daelhousen said another key reason the document
was updated related to environmental concerns over
foam. Research has shown that some firefighting foams used
to combat fuel fires contain chemicals that can be harmful to
human health and the environment.
" I think there are some misconceptions about different
GETTY IMAGES
http://www.simpleflying.com
NFPA Journal - Spring 2022
Table of Contents for the Digital Edition of NFPA Journal - Spring 2022
Contents
NFPA Journal - Spring 2022 - Cover1
NFPA Journal - Spring 2022 - Cover2
NFPA Journal - Spring 2022 - 1
NFPA Journal - Spring 2022 - 2
NFPA Journal - Spring 2022 - 3
NFPA Journal - Spring 2022 - Contents
NFPA Journal - Spring 2022 - 5
NFPA Journal - Spring 2022 - 6
NFPA Journal - Spring 2022 - 7
NFPA Journal - Spring 2022 - 8
NFPA Journal - Spring 2022 - 9
NFPA Journal - Spring 2022 - 10
NFPA Journal - Spring 2022 - 11
NFPA Journal - Spring 2022 - 12
NFPA Journal - Spring 2022 - 13
NFPA Journal - Spring 2022 - 14
NFPA Journal - Spring 2022 - 15
NFPA Journal - Spring 2022 - 16
NFPA Journal - Spring 2022 - 17
NFPA Journal - Spring 2022 - 18
NFPA Journal - Spring 2022 - 19
NFPA Journal - Spring 2022 - 20
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NFPA Journal - Spring 2022 - 27
NFPA Journal - Spring 2022 - 28
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NFPA Journal - Spring 2022 - 30
NFPA Journal - Spring 2022 - 31
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NFPA Journal - Spring 2022 - 33
NFPA Journal - Spring 2022 - 34
NFPA Journal - Spring 2022 - 35
NFPA Journal - Spring 2022 - 36
NFPA Journal - Spring 2022 - 37
NFPA Journal - Spring 2022 - 38
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NFPA Journal - Spring 2022 - 40
NFPA Journal - Spring 2022 - 41
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NFPA Journal - Spring 2022 - 45
NFPA Journal - Spring 2022 - 46
NFPA Journal - Spring 2022 - 47
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NFPA Journal - Spring 2022 - 49
NFPA Journal - Spring 2022 - 50
NFPA Journal - Spring 2022 - 51
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NFPA Journal - Spring 2022 - 58
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NFPA Journal - Spring 2022 - Cover3
NFPA Journal - Spring 2022 - Cover4
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