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HAZARD
DESCRIPTION
HAZARD
RATIONALE
CON
CODE
CONTROL
OSHA
29CFR 1900
FAA-G-
2100F
HUMAN
FACTORS
NFPA
Code
(MIL-STD-
1472)
C1.3 Electrical safe
operating procedures
(e.g., LO/TO) should
be implemented when
any equipment is
energized during bench
top testing.
1910.147(c)(4) 3.3.6.1.6 4.1.7
H1.2 Technicians could be
inadvertently exposed to
electrical power during
removal and replacement
of LRUs
This hazard is appropriate
to all systems where there
are voltages greater than
50 VDC.
C1.4 Lockout and tagout
procedures must be
followed and enforced
prior to any system
LRU replacement
1910.147(c)(4) 3.3.6.1.6 70B, 3-4.2
70E, 2-3.2
70E, 5-1.2
FAA System Safety Handbook, Chapter 12: Facilities Safety
December 30, 2000
12 - 27
TABLE 12-3 REQUIREMENTS CROSS-CHECK ANALYSIS
HAZ
CODE
HAZARD
DESCRIPTION
HAZARD
RATIONALE
CON
CODE
CONTROL
OSHA
29CFR 1900
FAA-G-
2100F
HUMAN
FACTORS
NFPA
Code
(MIL-STD-
1472)
C1.5 Provide guarding for
each LRU associated
equipment (e.g., relays,
switches, bus bars,
etc.) such that
inadvertent contact
with energized
components can not
occur during
installation,
replacement and/or
removal of other
LRUs.
1910.303(g)(2) 6.1.2.6 70e, 2-5
70e, 23-2
H1.3 Technicians could be
inadvertently exposed to
high voltages due to the
lack of appropriate
lockout tagout procedures.
C1.6 Conduct a review of
existing or proposed
LOTO procedures to
ensure adequacy.
1910.147(z)(6) 70e, 5-1
FAA System Safety Handbook, Chapter 12: Facilities Safety
December 30, 2000
12 - 28
TABLE 12-3 REQUIREMENTS CROSS-CHECK ANALYSIS
HAZ
CODE
HAZARD
DESCRIPTION
HAZARD
RATIONALE
CON
CODE
CONTROL
OSHA
29CFR 1900
FAA-G-
2100F
HUMAN
FACTORS
NFPA
Code
(MIL-STD-
1472)
C1.7 Follow established
LOTO procedures and
incorporate them into
appropriate technical
manual. Provide
recurring training for
effected employees in
appropriate
procedures.
1910.147(c)(6) 3.3.6.1.6 5.10.5 70e, 5-1
C1.8 Design console such
that all power can be
removed from a single
console prior to
performing
maintenance and
develop and document
the procedure to
accomplish this. If it is
not possible to deenergize
all power
within a console, such
power must be
isolated, guarded and
identified to prevent
accidental contact.
1910.147(b)(2)(
iii)
3.1.2.2.5 6.1.2.6
FAA System Safety Handbook, Chapter 12: Facilities Safety
December 30, 2000
12 - 29
TABLE 12-3 REQUIREMENTS CROSS-CHECK ANALYSIS
HAZ
CODE
HAZARD
DESCRIPTION
HAZARD
RATIONALE
CON
CODE
CONTROL
OSHA
29CFR 1900
FAA-G-
2100F
HUMAN
FACTORS
NFPA
Code
(MIL-STD-
1472)
H1.4 Technicians could be
exposed to energized pins
or connectors.
C1.9 Provide guards or other
means to prevent
exposed energized pins
and connectors.
1910.303(g)(2) 3.3.1.3.4
.7.11/3.3
.6.4
6.8 70, 400-35
&4110-
56(g)
H1.5 All electrical components
are not properly grounded
in their operating
configuration. Should
there be a fault in the rack,
the technician could be
inadvertently exposed to
energy due to the fault
(e.g., ground fault).
This hazard addresses
inadvertent exposure due
to inadequate grounding.
C1.10 Ensure proper
grounding of all
components (e.g.,
proper grounding of
sliding racks moving
covers and guards.)
1910.308(a)(4)(
v)
3.3.6.1.1
/3.1.2.7.
1
70e, 2-
6.4.44
FAA System Safety Handbook, Chapter 12: Facilities Safety
December 30, 2000
12 - 30
TABLE 12-3 REQUIREMENTS CROSS-CHECK ANALYSIS
HAZ
CODE
HAZARD
DESCRIPTION
HAZARD
RATIONALE
CON
CODE
CONTROL
OSHA
29CFR 1900
FAA-G-
2100F
HUMAN
FACTORS
NFPA
Code
(MIL-STD-
1472)
H1.6 No single switch exists
from which to de-energize
the console for
maintenance activities
　
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