# CFM International Service Bulletin 72-0392: No revision named

- Rights: © CFM International. Filed by the FAA in regulations.gov docket FAA-2023-1216, the docket of AD 2023-23-12. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [CFM International Service Bulletin 72-0392](https://openairdocs.org/service-documents/cfm/sb-72-0392.md)
- Title as filed: CFM International LEAP-1B Service Bulletin 72-0392 Issue 002
- Pages: 13
- PDF: https://openairdocs.org/files/sha256/5e/58/5e585031eda6e70c0fd7f0d706092ba5ac805428aabb325b6aae67b71e9ffe7a
- Page: https://openairdocs.org/service-documents/cfm/sb-72-0392/file/5e585031eda6

## Text

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### Page 1

LEAP
-
1B
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72
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00
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0392
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01A
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930A
-
D
ENGINE
-
CORE
MODULE
ASSEMBL
Y
(72
-
00
-
02)
-
REMOV
AL
OF
HPT
ST
AGE
1
DISKS
AND
HPC
ST
AGE
6
-
10
SPOOL
FROM
SER
VICE
SERVICE
BULLETIN
T
able
of
contents
1.
REVISION
INFORMA
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Revision
reason
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Revision
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2.
SUMMAR
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Reason
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3.
PLANNING
INFORMA
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Applicability
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B.
Concurrent
requirements
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C.
Reason
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D.
Description
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E.
Compliance
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F
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Approval
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G.
Manpower
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H.
W
eight
and
balance
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I.
Electrical
load
data
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J.
Software
accomplishment
summary
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K.
Referenced
documentation
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L.
Documentation
af
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M.
Industry
support
information
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N.
Interchangeability
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4.
MA
TERIAL
INFORMA
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5.
ACCOMPLISHMENT
INSTRUCTIONS
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A.Removal
of
HPT
Stage
1
Disk
(SIN:
158A0)
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B.Installation
of
HPT
Stage
1
Disk
(SIN:
158A0)
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C.Removal
of
HPC
Stage
6
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Spool
(SIN:
050A0)
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D.Installation
of
HPC
Stage
6
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Spool
(SIN:
050A0)
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6.
ADDITIONAL
INFORMA
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A.
Additional
information
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13
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
1/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 2

LEAP
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1B
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72
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0392
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01A
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930A
-
D
List
of
tables
T
able:
Reasons
for
update
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2
T
able:
References
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2
T
able
1:
Removal
Thresholds
of
Af
fected
Population
of
HPT
Stage
1
Disks
P/N
2600M21G02
.
.
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.
5
T
able
2:
Removal
Thresholds
of
Af
fected
Population
of
HPT
Stage
1
Disks
P/N
2600M21G02
.
.
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.
5
T
able
3:
Removal
Thresholds
of
Af
fected
Population
of
HPC
Stage
6
-
10
Spool
P/N
2552M06G02
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7
T
able:
Support
equipment
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8
T
able:
Spares
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8
List
of
figures
Figure
1:
HPT
Stage
1
Disk
Location
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1
1
Figure
2:
HPC
Stage
6
-
10
Spool
Location
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.
12
CFM
PROPRIET
AR
Y
INFORMA
TION
The
information
contained
in
this
document
is
CFM
proprietary
information
and
is
disclosed
in
confidence.
It
is
the
property
of
CFM
and
shall
not
be
used,
disclosed
to
others
or
reproduced
without
the
express
written
consent
of
CFM,
including,
but
without
limitation,
it
is
not
to
be
used
in
the
creation,
manufacture,
development,
or
derivation
of
any
repairs,
modifications,
spare
parts,
design,
or
configuration
changes
or
to
obtain
F
AA
or
any
other
government
or
reg-
ulatory
approval
to
do
so.
If
consent
is
given
for
reproduction
in
whole
or
in
part,
this
notice
and
the
notice
set
forth
on
each
page
of
this
document
shall
appear
in
any
such
reproduction
in
whole
or
in
part.
The
information
contained
in
this
document
may
also
be
controlled
by
U.S.
export
control
laws.
Unauthorized
export
or
re
-
export
is
prohibited.
Reasons
for
update
T
able:
Reasons
for
update
[TECHNICAL]
T
o
update
paragraphs
3.,
PLANNING
INFORMA
TION
and
5.,
ACCOMPLISHMENT
INSTRUCTIONS.
References
T
able:
References
T
echnical
Publication
LEAP
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72
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00
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01A
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530A
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C
LEAP
-
1B
-
72
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02
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68A
-
52AA
-
C
LEAP
-
1B
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72
-
52
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01A
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530A
-
C
LEAP
-
1B
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52
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09A
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522A
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C
to
be
continued
...
LEAP
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72
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Page
2/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 3

LEAP
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1B
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72
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T
echnical
Publication
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1B
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72
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52
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09A
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722A
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C
LEAP
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LEAP
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68A
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72AA
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C
LEAP
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710A
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C
LEAP
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01A
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LEAP
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LEAP
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-
530A
-
C
LEAP
-
1B
-
72
-
31
-
00
-
01A
-
710A
-
C
LEAP
-
1B
-
72
-
30
-
00
-
01A
-
710A
-
C
LEAP
-
1B
-
72
-
00
-
02
-
01A
-
710A
-
C
Management
information
Manufacturer
recommendation:
.
.
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.
Recommended
T
ask
type:
.
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Modification
Original
issue
date:
.
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.
2023
-
03
-
07
1.
REVISION
INFORMA
TION
A.
Revision
reason
Issue
Number
Revision
Reason
001
Baseline.
002
T
o
update
paragraphs
3.,
PLANNING
INFORMA
TION
and
5.,
ACCOMPLISHMENT
INSTRUCTIONS.
B.
Revision
history
Issue
Number
Issue
Date
001
2023
-
03
-
07
2.
SUMMAR
Y
A.
Reason
T
o
remove
parts
from
service.
3.
PLANNING
INFORMA
TION
A.
Applicability
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
3/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 4

LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
This
Service
Bulletin
is
applicable
to:
•
Engine
type:
LEAP
-
1B
•
Engine
model(s):
LEAP
-
1B21,LEAP
-
1B23,LEAP
-
1B25,LEAP
-
1B27,LEAP
-
1B28,LEAP
-
1B28B1,LEAP
-
1B28B2,LEAP
-
1B28B2C,LEAP
-
1B28B3,LEAP
-
1B28BBJ1,LEAP
-
1B28BBJ2
This
Service
Bulletin
is
applicable
to
the
LEAP
-
1B
engines
that
have
installed
the
stage
1
high
pressure
turbine
(HPT)
rotor
disks
(HPT
stage
1
disks)
P/N
2600M21G02
and
compressor
rotor
stages
6
-
10
spool
[high
pressure
compressor
(HPC)
stage
6
-
10
spool]
P/N
2552M06G02,
with
serial
numbers
listed
in
T
able
1
through
T
able
3
.
B.
Concurrent
requirements
None.
C.
Reason
(1)
Objective:
T
o
remove
parts
from
service.
(2)
Condition:
The
af
fected
HPT
stage
1
disks
and
HPC
stage
6
-
10
spool
have
been
manufactured
from
material
that
may
have
potential
reduced
material
properties
due
to
iron
inclusion.
(3)
Cause:
The
potential
reduced
material
capability
may
decrease
fatigue
life
of
the
af
fected
HPT
stage
1
disks
and
HPC
stage
6
-
10
spool.
(4)
Improvement:
The
af
fected
HPT
stage
1
disks
and
HPC
stage
6
-
10
spool
will
be
removed
from
service.
(5)
Substantiation:
Substantiation
is
by
analysis.
D.
Description
This
Service
Bulletin
provides
serial
numbers
of
HPT
stage
1
disks
and
HPC
stage
6
-
10
spool
with
potential
reduced
material
capability
.
Also,
this
Service
Bulletin
recommends
the
removal
of
the
af
fected
HPT
stage
1
disks
and
HPC
stage
6
-
10
spools.
E.
Compliance
Category
2
NOTE:
Some
steps
in
paragraphs
3.E.,
Compliance
and
5.,
ACCOMPLISHMENT
INSTRUCTIONS
are
identi-
fied
as
Required
for
Compliance
(RC).
If
this
Service
Bulletin
is
mandated
by
an
Airworthiness
Directive
(AD),
the
steps
identified
as
RC
must
be
done
to
comply
with
the
AD.
Steps
not
identified
with
RC
are
recommended
and
may
be
deviated
from;
done
as
a
part
of
other
actions;
or
done
with
accepted
methods
different
from
those
given
in
this
Service
Bulletin
if
the
RC
steps
can
be
done
and
the
airplane
returned
to
a
serviceable
condition.
RC
-
CFM
recommends
that
you
do
this
Service
Bulletin
as
soon
as
possible
without
ef
fect
on
revenue
service
but
before
cycles
since
new
(CSN)
removal
thresholds
listed
in
T
able
1
through
T
able
3
below
,
or
at
the
next
piece
-
part
exposure
of
the
af
fected
part,
whichever
comes
first.
NOTE:
Specification
of
engine
model(s)
for
applications
in
T
able
1
through
T
able
3
:
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
4/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 5

LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
•
Commercial
Low
Thrust
Application
-
Engine
models:
LEAP
-
1B21,
LEAP
-
1B23,
LEAP
-
1B25,
LEAP
-
1B27.
•
Commercial
High
Thrust
Application
-
Engine
models:
LEAP
-
1B28,
LEAP
-
1B28B1,
LEAP
-
1B28B2,
LEAP
-
1B28B2C.
•
Commercial
Application
-
Engine
model:
LEAP
-
1B28B3.
•
Business
Jet
Application
-
Engine
models:
LEAP
-
1B28BBJ1,
LEAP
-
1B28BBJ2.
T
able
1:
Removal
Thresholds
of
Af
fected
Population
of
HPT
Stage
1
Disks
P/N
2600M21G02
HPT
Stage
1
Disk
Serial
Number
Com-
mer-
cial
Low
Thr-
ust
-
CSN
Com-
mer-
cial
High
Thrust
-
CSN
LEAP
-
1B28
B3
-
CSN
Busi-
ness
Jet
-
CSN
GWN13A5K
GWN13A
T2
GWN13C30
GWN13C5F
GWN13C9G
GWN13CEJ
GWN13CGF
GWN13CNK
GWN13F40
GWN13FC5
GWN13FHF
GWN13FLM
GWN13HCP
GWN13JGP
GWN13LR4
GWN13PW7
GWN13PW9
-
-
-
-
-
-
3,880
3,710
2,530
2,250
T
able
2:
Removal
Thresholds
of
Af
fected
Population
of
HPT
Stage
1
Disks
P/N
2600M21G02
HPT
Stage
1
Disk
Serial
Number
Com-
mer-
cial
Low
Thr-
ust
-
CSN
Com-
mer-
cial
High
Thrust
-
CSN
LEAP
-
1B28
B3
-
CSN
Busi-
ness
Jet
-
CSN
GWN140K0
GWN1410L
GWN1410M
GWN1410N
GWN1414T
GWN1419H
GWN141G4
GWN141GF
GWN141K7
GWN141K8
GWN141MF
GWN141MG
GWN141MH
GWN1421G
GWN14276
GWN142C5
GWN142GM
GWN142P0
GWN142P1
GWN14322
GWN1434G
GWN14350
GWN1436P
GWN143C5
GWN143HC
GWN143HT
GWN143L9
GWN143LA
GWN143W3
GWN14738
GWN1476N
GWN147MW
GWN148A6
GWN148A8
GWN148A9
GWN148EE
GWN148EH
GWN148EP
GWN148H3
GWN148HA
GWN148KH
GWN148LL
GWN148NN
GWN148NP
GWN149A
W
GWN14A4E
GWN14C1E
GWN14C34
GWN14E4F
GWN14FHM
GWN14G1J
GWN14G2H
GWN14G44
GWN14G45
GWN14G50
5,440
5,210
3,530
3,250
to
be
continued
...
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
5/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 6

LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
HPT
Stage
1
Disk
Serial
Number
Com-
mer-
cial
Low
Thr-
ust
-
CSN
Com-
mer-
cial
High
Thrust
-
CSN
LEAP
-
1B28
B3
-
CSN
Busi-
ness
Jet
-
CSN
GWN14G5H
GWN14G9L
GWN14GF6
GWN14GGA
GWN14GGE
GWN14GK4
GWN14GK6
GWN14GMG
GWN14GMH
GWN14GMJ
GWN14GPK
GWN14GWW
GWN14H1K
GWN14H1L
GWN14H4C
GWN14H69
GWN14HC5
GWN14HE9
GWN14J8H
GWN14JN3
GWN14JN7
GWN14JW7
GWN14K5A
GWN14K90
GWN14KN2
GWN14L0A
GWN14L0C
GWN14L60
GWN14L61
GWN14L62
GWN14L95
GWN14LRF
GWN14M2F
GWN14R60
GWN14R6P
GWN14WLP
GWN155K0
GWN155W1
GWN1573A
GWN1573C
GWN1573E
GWN1573H
GWN1577F
GWN157EC
GWN157K9
GWN157KA
GWN157KC
GWN157L
W
GWN157MP
GWN157MR
GWN157PF
GWN157RL
GWN1583W
GWN1586F
GWN1588T
GWN158CE
GWN158MC
GWN158TG
GWN159LC
GWN159RF
GWN159W
A
GWN159WC
GWN15A1R
GWN15A1W
GWN15A29
GWN15A89
GWN15A8A
GWN15A8C
GWN15A8E
GWN15AC6
GWN15AG9
GWN15AHF
GWN15AL1
GWN15AN7
GWN15AP0
GWN15AR7
GWN15A
W6
GWN15C3W
GWN15CER
GWN15CNP
GWN15CPL
GWN15E33
GWN15EG9
GWN15EH8
TMT1A
TE9
TMT1A
TED
TMT1C4F4
TMT1C9U0
TMT1C9U4
TMT1D01G
TMT1D01H
TMT1D1JN
TMT1D1JP
TMT1D1JR
TMT1D1K0
TMT1D1K1
TMT1DG6D
TMT1DG6G
TMT1E2K6
TMT1E3FG
TMT1EAN5
TMT1EAN7
TMT1EG1U
TMT1EG2C
TMT1EG2D
TMT1EG2F
TMT1HGJA
TMT1HGJC
TMT1HGJD
TMT1HMJ6
TMT1HMJL
TMT1JECE
TMT1JM1L
TMT1K33G
TMT1K390
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
6/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 7

LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
T
able
3:
Removal
Thresholds
of
Af
fected
Population
of
HPC
Stage
6
-
10
Spool
P/N
2552M06G02
HPC
Stage
6
-
10
Spool
Serial
Number
Com-
mer-
cial
Low
Thr-
ust
-
CSN
Com-
mer-
cial
High
Thrust
-
CSN
LEAP
-
1B28
B3
-
CSN
Busi-
ness
Jet
-
CSN
GWN1
1C6F
-
-
-
-
-
-
-
-
8,750
8,590
7,080
8,380
Impact
A
This
recommendation
is
to
address
a
condition
that
may
af
fect
Flight
Safety
.
NOTE:
This
Service
Bulletin
can
be
done
in
shop.
This
Service
Bulletin
is
of
fered
to
improve
the
reliability
or
performance
of
your
CFM
product,
or
to
help
prevent
the
occurrence
of
the
event
or
condition
described
in
this
Service
Bulletin.
If
the
operator
elects
not
to
participate
in
the
bulletin,
that
decision
will
be
taken
into
consideration
by
CFM
in
evaluating
future
product
performance
issues
that
may
arise
in
the
operator
’
s
fleet.
F
.
Approval
The
technical
content
of
this
Service
Bulletin
is
approved
by
the
F
AA
and
under
the
Authority
of
DOA
No.
EASA.21J.086.
G.
Manpower
After
you
get
access
to
the
HPT
rotor
,
you
will
need
approximately
15
man
-
hours
to
remove
the
HPT
stage
1
disk.
After
you
get
access
to
the
HPC
rotor
,
you
will
need
approximately
10
man
-
hours
to
remove
the
HPC
stage
6
-
10
spool.
H.
W
eight
and
balance
W
eight
and
balance
are
not
changed.
I.
Electrical
load
data
Not
Applicable.
J.
Software
accomplishment
summary
Not
Applicable.
K.
Referenced
documentation
CFM
LEAP
-
1B
Engine
Illustrated
Parts
Catalog
(EIPC),
CFM
-
TP
-
620
EIPC.21
CFM
LEAP
-
1B
Engine
Shop
Manual
(ESM),
CFM
-
TP
-
620
SM.21
CFM
LEAP
Illustrated
T
ools
and
Equipment
Manual
(ITEM),
CFM
-
TP
.ITEM.25
L.
Documentation
affected
None.
M.
Industry
support
information
None.
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
7/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 8

LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
N.
Interchangeability
Not
Applicable.
4.
MA
TERIAL
INFORMA
TION
List
of
material
sets
Not
Applicable.
List
of
support
equipment
Support
equipment
Name
T
ool
Number
Reference
(Qty)
MFR
Unit
$
Price
(Pkg
Qty)
L/T
Special
T
ools
HPT
Rotor
Assembly
and
Disassembly
Fixture
956A3001
LEAP
-
00
-
SP
-
01
-
53
-
00A
-
066A
-
C
(1)
-
Quote
(
-)
Qu-
ote
NOTE:
For
purchasing
details,
contact
CFM
LEAP
tooling
licensees:
9M323
-
AGSE,
F4590
-
Dedienne,
or
5QE71
-
Rhinestahl.
NOTE:
Replenishment
Lead
T
ime
(L/T)
in
days.
NOTE:
Prices
are
provided
for
planning
purposes
and
are
subject
to
change.
List
of
supplies
Not
Applicable.
List
of
spares
Spares
New
PN
/
SIN
/
MFR
(New
Qty)
Unit
$
Price
(Pkg
Qty)
L/T
New
Part
Name
(CSN)
2600M21G02
/
158A0
/
07482
(1)
403,800
.00
(1)
60
DISK,
ST
AGE
1
HPT
ROT
OR
(01
-
250,
72
-
52
-
00)
2552M06G04
/
050A0
/
07482
(1)
433,500
.00
(1)
60
SPOOL,
ST
AGE
6
-
10
COMP
ROT
OR
(01
-
680
00B,
72
-
31
-
00)
NOTE:
Replenishment
Lead
T
ime
(L/T)
in
days.
NOTE:
Prices
are
provided
for
planning
purposes
and
are
subject
to
change.
List
of
removed
spares
Not
Applicable.
5.
ACCOMPLISHMENT
INSTRUCTIONS
A.
Removal
of
HPT
Stage
1
Disk
(SIN:
158A0)
NOTE:
These
Accomplishment
Instructions
refer
to
methods,
techniques,
and
practices
specified
in
other
docu-
ments.
When
the
words
"refer
to"
are
used
and
there
are
other
acceptable
methods,
techniques,
and
prac-
tices
(including
tools,
equipment,
and
test
equipment)
those
acceptable
methods,
techniques,
practices
(in-
cluding
tools,
equipment,
and
test
equipment)
may
be
used
to
complete
the
work.
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
8/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 9

LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
(1)
Remove
the
core
module
assembly
(SIN:
00104)
from
the
engine
assembly
(SIN:
00100).
Refer
to
the
LEAP
-
1B
ESM,
72
-
00
-
00,
DISASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
00
-
00
-
01A
-
530A
-
C
).
(2)
Remove
the
HPT
rotor
assembly
(SIN:
15000,
Figure
1
)
from
the
core
module
assembly
(SIN:
00104).
Refer
to
the
LEAP
-
1B
ESM,
72
-
00
-
02,
REMOVE
ENGINE
MODULAR
SECTION
(
Refer
to:
LEAP
-
1B
-
72
-
00
-
02
-
68A
-
52AA
-
C
).
(3)
Disassemble
the
HPT
rotor
assembly
(SIN:
15000,
Figure
1).
Refer
to
the
LEAP
-
1B
ESM,
72
-
52
-
00,
DIS-
ASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
52
-
00
-
01A
-
530A
-
C
).
(4)
RC
-
Remove
the
af
fected
HPT
stage
1
disk
(1,
Figure
1
)
(SIN:
158A0)
from
the
HPT
rotor
fixture.
Refer
to
the
LEAP
-
1B
ESM,
72
-
52
-
00,
REMOVE
SUPPOR
T
EQUIPMENT/REMOVE
FROM
SUPPOR
T
EQUIP-
MENT
(
Refer
to:
LEAP
-
1B
-
72
-
52
-
00
-
09A
-
522A
-
C
).
B.
Installation
of
HPT
Stage
1
Disk
(SIN:
158A0)
(1)
RC
-
Install
a
new
or
serviceable
HPT
stage
1
disk
(1,
Figure
1
)
(SIN:
158A0),
forward
end
down,
into
the
HPT
rotor
fixture.
Refer
to
the
LEAP
-
1B
ESM,
72
-
52
-
00,
INST
ALL
SUPPOR
T
EQUIPMENT/INST
ALL
ON
SUPPOR
T
EQUIPMENT
(
Refer
to:
LEAP
-
1B
-
72
-
52
-
00
-
09A
-
722A
-
C
).
(2)
Assemble
the
HPT
rotor
assembly
(SIN:
15000,
Figure
1
).
Refer
to
the
LEAP
-
1B
ESM,
72
-
52
-
00,
ASSEM-
BLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
52
-
00
-
01A
-
710A
-
C
).
(3)
Install
the
HPT
rotor
assembly
(SIN:
15000,
Figure
1
)
onto
the
core
module
assembly
(SIN:
00104).
Refer
to
the
LEAP
-
1B
ESM,
72
-
00
-
02,
INST
ALL
ENGINE
MODULAR
SECTION
(
Refer
to:
LEAP
-
1B
-
72
-
00
-
02
-
68A
-
72AA
-
C
).
(4)
Install
the
core
module
assembly
(SIN:
00104)
on
the
engine
assembly
(SIN:
00100).
Refer
to
LEAP
-
1B
ESM,
72
-
00
-
00,
ASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
00
-
00
-
01A
-
710A
-
C
).
C.
Removal
of
HPC
Stage
6
-
10
Spool
(SIN:
050A0)
(1)
Remove
the
core
module
assembly
(SIN:
00104)
from
the
engine
assembly
(SIN:
00100).
Refer
to
the
LEAP
-
1B
ESM,
72
-
00
-
00,
DISASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
00
-
00
-
01A
-
530A
-
C
).
(2)
Disassemble
the
core
module
assembly
(SIN:
00104).
Refer
to
the
LEAP
-
1B
ESM,
72
-
00
-
02,
DISASSEM-
BLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
00
-
02
-
01A
-
530A
-
C
).
(3)
Disassemble
the
HPC
assembly
(SIN:
08000).
Refer
to
the
LEAP
-
1B
ESM,
72
-
30
-
00,
DISASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
30
-
00
-
01A
-
530A
-
C
).
(4)
Disassemble
the
HPC
rotor
assembly
(SIN:
05000,
Figure
2
).
Refer
to
the
LEAP
-
1B
ESM,
72
-
31
-
00,
DISASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
31
-
00
-
01A
-
530A
-
C
).
(5)
RC
-
Remove
the
af
fected
HPC
stage
6
-
10
spool
(1,
Figure
2
)
(SIN:
050A0).
D.
Installation
of
HPC
Stage
6
-
10
Spool
(SIN:
050A0)
(1)
RC
-
Assemble
the
HPC
rotor
assembly
(SIN:
05000,
Figure
2
)
with
a
new
or
serviceable
HPC
stage
6
-
10
spool
(1)
(SIN:
050A0).
Refer
to
the
LEAP
-
1B
ESM,
72
-
31
-
00,
ASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
31
-
00
-
01A
-
710A
-
C
).
(2)
Assemble
the
HPC
assembly
(SIN:
08000).
Refer
to
the
LEAP
-
1B
ESM,
72
-
30
-
00,
ASSEMBLE
PROCE-
DURE
(
Refer
to:
LEAP
-
1B
-
72
-
30
-
00
-
01A
-
710A
-
C
).
(3)
Assemble
the
core
module
assembly
(SIN:
00104).
Refer
to
the
LEAP
-
1B
ESM,
72
-
00
-
02,
ASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
00
-
02
-
01A
-
710A
-
C
).
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
9/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 10

LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
(4)
Install
the
core
module
assembly
(SIN:
00104)
on
the
engine
assembly
(SIN:
00100).
Refer
to
LEAP
-
1B
ESM,
72
-
00
-
00,
ASSEMBLE
PROCEDURE
(
Refer
to:
LEAP
-
1B
-
72
-
00
-
00
-
01A
-
710A
-
C
).
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
Page
10/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

### Page 11 (OCR)

cfm
The Power of Flight  LEAP-1B-72-00-0392-01A-930A-D
HPT ROTOR
ASSEMBLY
(SIN: 15000)
LEGEND:
1. HPT STAGE 1 DISK
(SIN 158A0)  ICN-LEAP-1B-72000392-B-07482-00001-A-001-01
HPT Stage 1 Disk Location
Figure 1
LEAP-1B-72-00-0392-01A-930A-D
Page 11/13
Issue 002-00 - 2023-09-05
© CFM PROPRIETARY INFORMATION: Subject to the restrictions on the media

### Page 12 (OCR)

cim
The Power of Flight
LEAP-1B-72-00-0392-01A-930A-D
АРС ROTOR
ASSEMBLY
(SIN: 05000)
VIEW A
(OVOSO NIS
ICN-LEAP-1B-72000392-B-07482-00002-A-001-01
HPC Stage 6-10 Spool Location
Figure 2
LEAP-1B-72-00-0392-01A-930A-D
Page 12/13
Issue 002-00 - 2023-09-05
© CFM PROPRIETARY INFORMATION: Subject to the restrictions on the media.

### Page 13

LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
6.
ADDITIONAL
INFORMA
TION
A.
Additional
information
Not
Applicable.
LEAP
-
1B
-
72
-
00
-
0392
-
01A
-
930A
-
D
End
of
data
module
Page
13/
13
Issue
002
-
00
-
2023
-
09
-
05
©
CFM
PROPRIET
AR
Y
INFORMA
TION:
Subject
to
the
restrictions
on
the
media.

---
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