January/February 2023 - 27

* Jet crashed into hangar
* Paint fumes on roof
* Scrubber
* Welding set off fire in MRO
* Unknown
As noted above, none of the incidents were related
to a fuel spill from an aircraft. Fires do occur in
hangars, like other buildings, however, foam is only
required due to the potential for a fire from an aircraft
fuel spill.
AMT: What are some of the fire suppression
systems (or technologies) hangars should be
equipped with? How does hangar size and type
affect fire suppression options?
NFPA 409 categorizes aircraft hangars into four
groups based on the floor area and the door height.
Within each of these groups, NFPA 409 provides
options for different fire protection measures. At
least three research reports have been completed in
the last few years documenting the minimal risk of
a fire in an aircraft hangar due to a fuel spill from an
aircraft. This has led to changes in NFPA 409 related
to when foam is required. If foam is still required,
NFPA also recognizes the use of an Ignitable Liquids
Drainage Floor Assembly (ILDFA) as an option in
lieu of foam. There has also been some investigation
related to the use of a clean agent fire suppression
system or a water mist fire suppression system in
a hangar in lieu of foam.
AMT: What training, if any, do workers need
for these suppression systems and how often
should they be maintained?
NFPA 409, and other NFPA standards, provide specific
requirements for inspection, testing and maintenance
(ITM) of foam fire suppression systems and
their associated releasing system. For example, the
foam concentrate is required to be tested annually
while the foam proportioning system is required
to be tested every five years. ITM, however, should
only be performed by properly trained personnel to
ensure proper testing and maintenance and reduce
the risk of an inadvertent discharge.
Megan Eisenstein,
managing director,
industry affairs &
innovation, NATA
Doug Fisher, principal
fire protection engineer,
Fisher Engineering, Inc.
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January/February 2023

Table of Contents for the Digital Edition of January/February 2023

EDITOR’S TAKEOFF
Industry Inspection
Business Aviation Maintenance Outlook Report
Composite’s Continual Growth
Borescopes, an Inside View
Engine Oil Impacts
NFPA 409 and Fire Suppression in 2023
Technicians Demonstrate Knowledge, Skill and Integrity at the Aviation Maintenance Competition Presented by Snap-on
FOR THE RECORD
ARSA INSIGHT
One WAAG Windshield Repair Stand Can Serve Multiple Narrow- or Wide-body Aircraft
Products
Advertiser’s Index
January/February 2023 - 1
January/February 2023 - 2
January/February 2023 - 3
January/February 2023 - EDITOR’S TAKEOFF
January/February 2023 - 5
January/February 2023 - Industry Inspection
January/February 2023 - 7
January/February 2023 - Business Aviation Maintenance Outlook Report
January/February 2023 - 9
January/February 2023 - 10
January/February 2023 - 11
January/February 2023 - 12
January/February 2023 - 13
January/February 2023 - 14
January/February 2023 - 15
January/February 2023 - Composite’s Continual Growth
January/February 2023 - 17
January/February 2023 - 18
January/February 2023 - 19
January/February 2023 - Borescopes, an Inside View
January/February 2023 - 21
January/February 2023 - 22
January/February 2023 - 23
January/February 2023 - Engine Oil Impacts
January/February 2023 - 25
January/February 2023 - NFPA 409 and Fire Suppression in 2023
January/February 2023 - 27
January/February 2023 - 28
January/February 2023 - 29
January/February 2023 - Technicians Demonstrate Knowledge, Skill and Integrity at the Aviation Maintenance Competition Presented by Snap-on
January/February 2023 - 31
January/February 2023 - 32
January/February 2023 - 33
January/February 2023 - FOR THE RECORD
January/February 2023 - ARSA INSIGHT
January/February 2023 - One WAAG Windshield Repair Stand Can Serve Multiple Narrow- or Wide-body Aircraft
January/February 2023 - 37
January/February 2023 - Products
January/February 2023 - 39
January/February 2023 - 40
January/February 2023 - 41
January/February 2023 - Advertiser’s Index
January/February 2023 - 43
January/February 2023 - 44
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