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Hydraulic Components (valves, actuators, pumps)
Waste Water
Insulation
Sample EZAP Worksheet Date: Page 1 of 5
Potable Water
Oxygen
Hydraulic Plumbing
Fuel Components
Engine Control Mechanisms
Pneumatic Plumbing
Electrical Wiring - Motor Driven Devices
Electrical Wiring - Instrumentation, and Monitoring
Secondary Flight Control Mechanisms
This sheet is used to comply with Steps 1 and 2 of
the Enhanced Zonal Analysis Procedure:
1. Describe the zone (location, access, boundaries)
2. List the content of the zone; installed equipment,
wiring, plumbing, components, etc.
In the comments section on this sheet, it would be
appropriate to note significant wire related items
such as "Wire bundle routed within 2" of high-temp
anti-ice ducting". The intent is to provide the analyst
with a clear understanding of what's in the zone and
how it could potentially affect wiring.
PROGRAM TO ENHANCE AIRCRAFT ELECTRICAL WIRING INTERCONNECTION SYSTEM MAINTENANCE
Appendix B. Examples of Typical EZAP Worksheets 33
Enhanced Zonal Analysis - Assessment of Zone Attributes Sheet 2 of 5
N
Y
N N
Y Y
N
Y
Continue the analysis
Steps 1 and 2 completed on Sheet 1.
ZONE NO: ZONE DESCRIPTION:
3. Zone contains wiring?
4. Combustible materials in
zone?
7. Is wiring close to
both primary and backup
hydraulic,
mechanical, or
electrical flight
controls?
No further action.
5. Is there an effective task
to significantly reduce the
likelihood of accumulation
of combustible materials?
8. Wiring
inspection task
determination.
See Sheet 3.
Sample EZAP Worksheet Date: Page 2 of 5
6. Define task and interval.
List on Sheet 5, Task
Summary.
Answers and Explanation to Questions
(Note: Steps 1 & 2 completed on Sheet 1.)
3.
4.
5.
6.
7.
This sheet is used to answer Questions 3 thru 7 of the
Enhanced Zonal Analysis Procedure.
If the answer to Questions 3 and 7 is 'NO', then no further
action is required in this analysis which is designed to address
only wiring systems.
If the answer to Question 5 is 'YES', and a task is identified
that can significantly reduce the likelihood of accumulation of
combustible materials, the task and interval must be defined in
Step 6. If the task identified is a cleaning task to remove
dust/lint accumulation from wiring, the interval for the task must
be frequent enough to keep the wiring relatively clean based
on the expected rate of accumulation of dust/lint on the wiring in
the zone.
In all cases, after Step 5 and/or Step 6, the analysis is
continued to Step 8.
PROGRAM TO ENHANCE AIRCRAFT ELECTRICAL WIRING INTERCONNECTION SYSTEM MAINTENANCE
Appendix B. Examples of Typical EZAP Worksheets 34
Enhanced Zonal Analysis - Inspection Level D etermination based on Zone S ize, D ensity, Poten tial Impact o f F ire Sheet 3A o f 5
Sma ll Medium Large
Low 1 2 3 Low Zonal G VI Zonal G VI Zonal G VI
Med ium 2 2 3 Medium Zonal G VI
Zonal G VI + S tandalone
G VI o f some
w iring
Zonal G VI + Standalone
G VI o f some
w iring
H igh 2 3 3 High
Zonal G VI + S tandalone
G VI o f some
w iring
Zonal G VI + S tandalone
G VI an d /o r
DET o f some
w iring
Zonal G VI + Standalone
G VI an d /o r
DET o f some
w iring
Circle appropriate result and in sert b elow .
Yes
No
Sam p le EZAP W o rk sheet D a te: D a te:
If a nswer to B o x 1 is 'Ye s " , answer Box 2 o n ly .
If a nswer to B o x 1 is 'No ', a nswe r B o xe s 2 , 3 , & 4 .
Size/Dens ity 1 3
Zone S ize Facto r 2
Zone S ize/Density A ssessment
In spection L evel D eterm in ation B ased on P otentia l E ffect o f F ire in
Zone
ZONE N O :
For P rograms with d ed icated Zonal Inspection P rogram (ZIP)
ZONE DESCRIPTION
3 . Define spe c ific
items /areas in the zon e for
which Stand-alone G VI is
ju s tified
Zonal G VI m ust be
augm ented w ith Standalone
G VI, an d /or DET
In spec tion.
4 . Define spe c ific
item/a reas in the zone fo r
which DET is ju s tified
Circle appropriate result an d answer q u estions in Boxes below.
RESULT:
2 . L is t zone description
and boundaries for Zonal
GVI.
1. Is a Zonal G VI a lone
effe c tive fo r the entire
Zone?
Answ ers & Explanation:
1 .
2 .
3 .
4 .
The tables on this S heet a re used to s e lec t the appropria te level o f inspection for the w iring in the
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