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- Manufacturer
- Sikorsky
- Type
- Alert Service Bulletin
- Number
- 92-32-008
- Copies
- 2 files of 1 revision
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of 17
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
S - 92 ®
HELICOPTER
ALERT
SERVICE
BULLETIN
N
OTICE TO A LL P ERSONS R
ECEIVING T HIS D
OCUMENT :
W ARNING :
T
HIS DOCUMENT ,
OR AN EMBODIMENT OF
IT IN ANY MEDIA ,
DISCLOSES INFORMATI
ON WHICH IS PROPRIET ARY ,
IS THE PROPERTY OF
LOCKHEED MARTIN
CORPORATION AND /
OR ITS SUBSIDIARIES ,
IS
AN UNPUBLISHED WORK
PROTECTED UNDER APPL
ICABLE COPYRIGHT LAW S ,
AND IS DELIVE
RED ON THE EXPRESS C
ONDITION THAT IT IS
NOT TO BE USED ,
DISCLOSED ,
REPRODUCED ,
IN WHOLE OR IN PART
(
INCLUDING REPRODUCTI
ON AS A DERIVATIVE W ORK ),
OR USED FOR MANUFAC
TURE FOR ANYONE OTHE R THAN
LOCKHEED MARTIN
CORPORATION AND /
OR ITS SUBSIDIARIES
WITHOUT ITS
WRITTEN CONSENT ,
AND THAT NO RIGHT IS
GRANTED TO DISCLOSE
OR SO USE ANY INFOR
MATION CONTAINED HER EIN .
A
LL RIGHTS RESERVED .
A
NY ACT IN VIOLATION
OF APPLICABLE LAW MA
Y RESULT IN CIVIL AN
D CRIMINAL
PENALTIES .
S - 92 ®
IS A REGISTERED TRAD
EMARK OF SIKORSKY AI RCRA
FT CORPORATION .
ASB 92 - 32 - 008
Basic Issue ▪
January
2 1 / 20
SUBJECT:
LANDING GEAR
–
Landing Gear
–
One - Time Inspection of Landing Gear for Non - Conforming Threaded Components
Section 1.
P
LANNING INFORMATION
A.
Effectivity
S - 92 A ™
model helicopters with serial numbers (S/Ns) 920006 through 920 334
including spare detail components ( 92250 - 12287 - 101, 92250 - 12283 - 101, 92250 - 12281 - 101, 92250 - 12317 - 101,
and
92250 - 12287 - 103 ) .
B.
Purpose
To provide instructions for a
one - time inspection
of
co mponents
with non - conforming threads ,
and
replace ment of components
if necessary .
C.
Background
A Notice of Potential Escape (NOPE) was issued describing n on - conforming threads
discovered on threaded hinge pin (92250 - 12281 -
101) ,
Main Landing Gear ( MLG ) / Nose Landing Gear (NLG) crossbolt (92250 - 12283 -
101), followed by a nother NOPE identifying MLG/NLG actuator pin (92250 - 12287 -
101), and MLG/NLG actuator pin (92250 - 12287 -
103) as having non - conforming threads.
Analysis has shown that the non - conforming th read reduces the fatigue strength of the component.
D.
Description
Helicopter is prepared for inspection .
Inspection of left MLG assembly , right MLG assembly , and NLG kit for components
with non - conforming threads is performed.
If components
with non - conformi ng threads are found, components
are removed and replaced as required .
Helicopter is returned to service.
Sikorsky Aircraft Corporation
6900 Main Street
P.O. Box 9729
Stratford, Connecticut 06615 - 9129
(203) 386 - 4000
S-92 WARNING – This file contains export controlled information subject to the EAR. ECCN EAR99
S - 92 ALERT
ASB 92 - 32 - 008
SERVICE BULLETIN
Basic Issue ▪
January
21 / 20
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section 1.
P
LANNING l
NFORMATION
(Continued)
E.
Compliance
Compliance is essential.
The one - time inspection
and replacement outlined herein shall be accomplished no later than
January 21, 202 1 .
If
components
with S/Ns matching those shown in Table s
1 or 2 are found, remove from service and discard once replacements are available, or if discrepant components
are removed for any reason, whichever occurs first without exceeding compliance period .
F.
Approval
Inspection i tem .
G.
Manpower (Estimated)
Task
No. of Men
No. of Hours
Man - Hours *
Raising
of
Helicopter
0.5
2.
Visual Inspection of MLG and NLG
1.0
1.0 **
Removal /Installation
of Threaded Hinge Pin
1 .
1.0**
Removal /Installation
of MLG/NLG Crossbolt
1.0
1.0 **
Removal /Installation
of MLG/NLG Actuator Pin** *
1.0
1.0 **
Removal /Installation
of MLG/NLG Assembly *** *
2.0
4 .0 **
Removal /Installation
of MLG/NLG Upper Nut
1 .
1.0 **
De - servic ing /Servic ing
Hydraulic Fluid
(Bench)
1.0
1.0 **
De - servic ing /Servi cing
Nitrogen (Bench)
1.0
1.0 **
Bleed/Service of Utility Hydraulic System
2.0
4.0 **
Per formance of Gear Strut Service
2.0
2.0**
Bleeding of Wheels
3.0
6.0
Test of Landing Control System
2.0
4.0
Test of Wheel Breaks
2.0
2.0
Performance of Function Flight Procedures
2 .0
4.0
Lowering Helicopter
0.5
2.0
Total Man - Hours
37.0 *****
This file contains export controlled information. See WARNING on first page.
ASB 92 - 32 - 008
S - 92 ALERT
Basic Issue ▪ January
21 / 20
SERVICE BULLETIN
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section 1 .
PLANNING
lNFORMATION (Continued)
Task
No. of Men
No. of Hours
Man - Hours *
*Estimate does not include time required to prepare helicopter or return it to flight status.
**Estimate is per one (1) MLG or NLG assembly unit only.
***MLG/NLG Actuator Pin 92250 - 12287 - 101
****MLG/NLG Actuator Pin 92250 - 12287 - 103
*****MLG/NLG compliance is recommended to be performed simultaneously to minimize duplication of post maintenance checks.
H.
Tooling
Qty
Nomenclature
Part No.
Source
Torque Wrench Assembly
MTOO58 - 14514 - 041
(1)
(1)
Tools are available at no cost. One tool will be provided free - of - charge to each customer per base. For parts availability and lead time requirements, contact your Customer Service Representative at Sikorsky Commercial Inc. (SCI). Submit at no - cost purchas e order referencing this ASB number helicopter serial number(s), and landing gear serial number(s) on which these tools will be used. This will allow SCI and the operator track shipment and receipt of parts. Orders will be accepted by letter, telephone, or
through the SCI website:
https://customerportal.sikorsky.com . For prompt shipment, reference address of each shipping destination. Direct your order to:
Sikorsky Aircraft Corporation Commercial Systems and Services
Mailstop K100
124 Quarry Road
Trumbull, CT 06611 U.S.A.
Attn: Account Service Manager
Telephone: (203) 416 - 4000
https://customerportal.sikorsky.com
I.
Weight and Balance
Not affected.
J.
Electrical Load Data
Not affected .
K.
Software Load Data
Not changed.
This file contains export controlled information. See WARNING on first page.
S - 92 ALERT
ASB 92 - 32 - 008
SERVICE BULLETIN
Basic Issue ▪
January
21 / 20
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section 1 .
PLANNING
lNFORMATION (Continued)
L.
References
(1)
Maintenance Manual SA S92A - AMM - 000, Task 32 - 11 - 01 - 960 -
001.
(2)
Maintenance Manual SA S92A - AMM - 000, Tasks 32 - 11 - 02 - 900 - 001/ -
002.
(3)
Maintenance Manual SA S92A - AMM - 000, Task 32 - 21 - 01 - 960 -
001.
(4)
Maintenance Manual SA S92A - AMM - 000, Tasks 32 - 21 - 02 - 900 - 001/ -
002.
(5)
Maintenance Manual SA S92A - AMM - 000, Task s
32 - 31 - 01 - 900 - 001/ -
002.
(6)
Maintenance Manual SA S92A - AMM - 000, Task s
32 - 31 - 02 - 900 - 001/ -
002.
M.
Publications Affected
None .
N.
Attachment
None.
Section 2.
M
ATERIAL INFORMATION
A.
Basis for Material Data
Per helicopter.
B.
Bill of Material
New Part No.
Qty
Nomenclature
Old Part No.
Instructions/
Disposition
92250 - 12281 - 101
A/R
Hinge Pin, Threaded
92250 - 12281 - 101
(1)
(2)
92250 - 12283 - 101
A/R
Crossbolt -
MLG/NLG
92250 - 12283 - 101
(1)( 3 )
92250 - 12287 - 101
A/R
Pin, Actuator -
MLG/NLG
92250 - 12287 - 101
(1) ( 4 )
92250 - 12287 - 103
A/R
Pin, Actuator -
MLG/NLG
92250 - 12287 - 103
(1) ( 5 )
92250 - 12317 - 102
A/R
Upper Nut -
MLG/NLG
92250 - 12317 - 10 1
(1) ( 6 )
This file contains export controlled information. See WARNING on first page.
ASB 92 - 32 - 008
S - 92 ALERT
Basic Issue ▪ January
21 / 20
SERVICE BULLETIN
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section
2.
MATERIAL lNFORMATION (Continued)
(1)
Part s
are available at no cost.
For parts availability and lead time requirements, contact your Customer Service Representative at Sikorsky Commercial Inc. (SCI). Submit a no - cost purchase order referencing this ASB number ,
helicopter serial number(s) , and landing gear serial number(s) on which these parts will be used. This will allow SCI and the operator to track shipment and receipt of parts. Orders will be accepted by letter, telephone, or through the SCI website:
https://customerportal.sikorsky.com . For prompt shipment, reference address of each shipping destination. Direct your order to:
Sikorsky Aircraft Corporation
Commercial Systems and Services
Mailstop K100
124 Quarry Road
Trumbull, CT 0661 1 U.S.A.
Attn:
Account Service Manager
Telephone: (203) 416 - 4000
33TU33TU33TU https://customerportal.sikorsky.com UUU33T33T33
(2)
When ordering threaded hinge pin (92250 - 12281 -
101), provide S/N of old threaded hinge pin .
(3)
When ordering
MLG/NLG
crossbolt ( 92250 - 12283 - 101 ), provide S/N of old
MLG/NLG
crossbolt .
(4)
When ordering MLG/NLG actuator pin (92250 - 12287 -
101), provide S/N of old MLG/NLG actuator pin.
(5)
When ordering MLG/NLG actuator pin (92250 - 12287 -
103), provide S/N of old MLG/NLG actuator pin.
(6)
When ordering MLG/NLG upper nut (92250 - 12317 -
102), provide S/N of Parent Assembly MLG
or NLG
per Table 2 .
This file contains export controlled information. See WARNING on first page.
S - 92 ALERT
ASB 92 - 32 - 008
SERVICE BULLETIN
Basic Issue ▪
January
21 / 20
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section 2.
MATERIAL INFORMATION (Continued)
C.
Consumable Material
Qty
Nomenclature
Part No.
Source
A/R
Low - Lint
Cleaning Cloth
A - A - 59323, Type II or equivalent
(1)
A/R
Sealant
AMS 3265, Class B or equivalent
(1)
A/R
Acetone
ASTM D329 or equivalent
(1)
A/R
Jointing Compound
CA - 1000 or equivalent
(1)
A/R
Corrosion Inhibitive Compound
MIL - PRF - 16173, Grade 2 or equivalent
(1)
A/R
Lockwire
MS20995C32 or equivalent
(1)
(1)
Available through normal supply channels.
Section 3.
A
CCOMPLISHMENT INSTRUCTIONS
A.
Prepare helicopter for inspection :
(1)
Turn off all helicopter electrical and hydraulic power.
(2)
Engage rotor brake.
B.
Visually inspect landing gear for components
with non - conforming threads as follows
(Refer
to
Figures 1 and 2) :
NOTE:
When inspecting threaded hinge pins (92250 - 12281 -
101) and MLG/NLG crossbolts (92250 - 12283 -
101) for S/Ns, components may have been removed and installed in a different parent assembly as compared to Table 2.
(1)
Inspect
components
of left MLG assembly , right
ML G assembly , and NLG kit
for
S/N s
listed
in Table s
or 2 .
TO PREVENT ELECTRICAL SHOCK OF PERSONNEL OR
POSSIBLE DAMAGE TO HELICOPTER COMPONENTS, MAKE SURE TO TURN OFF ALL ELECTRICAL POWER.
OBSERVE ALL CAUTIONS AND WARNINGS ON CONTAINERS WHEN USING CONSUMABLES. WHEN APPLICABLE, WEAR NECESSARY PROTECTIVE GEAR DURING HANDLING AND USE. IF
A CONSUMABLE IS FLAMMABLE OR EXPLOSIVE, MAKE CERTAIN
CONSUMABLE AND ITS VAPORS ARE KEPT AWAY FROM HEAT, SPAR K AND FLAME. MAKE CERTAIN FIREFIGHTING EQUIPMENT IS READILY AVAILABLE PRIOR TO USE. FOR ADDITIONAL
INFORMATION ON TOXICITY, FLASHPOINT AND FLAMMABILITY
OF CHEMICALS, CONSULT YOUR MEDICAL
DEPARTMENT
OR THE MANUFACTURER OF THE CONSUMABLE.
This file contains export controlled information. See WARNING on first page.
ASB 92 - 32 - 008
S - 92 ALERT
Basic Issue ▪ January
21 / 20
SERVICE BULLETIN
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section 3.
ACCOMPLISHMENT
INSTRUCTIONS (Continued)
(a)
If no components
with S/Ns listed in Table 1
or 2
are found , p roceed to step D.
(b)
If threaded hinge pin s ( 92250 - 12281 - 101 ) with S/Ns matching those shown in Table 1
or 2
are
found , remove from service and
discard.
I nstall new thread ed
hinge pin .
( Refer to Maintenance Manual, SA S92A - AMM - 000, Task 32 - 11 - 01 - 960 - 001 or 32 - 21 - 01 - 960 -
001).
(c)
If MLG/NLG crossbolts
( 92250 - 1228 3 - 101 )
with S/Ns matching those shown in Table s
or 2
are found, remove from service and discard. Install new MLG/NLG crossbolt.
( Refer to Maintenance Manual, SA S92A - AMM - 000, Task 32 - 11 - 01 - 960 - 001 or 32 - 21 - 01 - 960 -
001).
(d)
If MLG/NLG actuator
pins ( 92250 - 1228 7 - 10 1 )
with
S/Ns matching those shown in Table 1 are found, remove from service and discard. Install new MLG/NLG actuator pin.
(Refer to Maintenance Manual SA S92A - AMM - 000, Tasks
32 - 3 1 - 01 - 900 - 001/ - 002
and /or
32 - 3 1 - 0 2 - 900 - 001/ - 002 ).
(e)
If MLG/NLG actuator pins ( 92250 - 122 8 7 - 10 3 )
with S/Ns matching those shown in Table 1 are found, remove from service and discard. Install new MLG/NLG actuator pin . (Refer to Maintenance Manual SA S92A - AMM - 000, T asks
32 - 31 - 01 - 900 - 001/ - 002
and/or 32 - 31 - 02 - 900 - 001/ - 002 ).
(f)
Per applicability of the parent assembly S/N as shown on Table 2 , re place
upper nut (92250 - 12317 -
101)
with
upper nut (92250 - 12317 - 102 ) as follows
(Refer to Figure 3 ) :
1.
Remove MLG shock strut. (Refer to
Maintenance Manual SA S 92A - AMM - 000, Task 32 - 11 - 02 - 900 - 001
and 32 - 31 - 02 - 900 - 001/ - 002 ).
2.
Remove lockwire from upper nut (92250 - 12317 -
101) .
3.
Using torque wrench assembly (MTOO58 - 14514 -
041), loosen and remove upper nut (92250 - 12317 -
101) from MLG.
4.
Apply jointing compound (CA - 1000) or corrosion inhibitive compound (MIL - PRF - 16173, Grade 2) to upper nut (92250 - 12317 -
102) .
5.
Install upper nut (92250 - 12317 -
102) on MLG.
6.
Using torque wrench assembly
(MTOO58 - 14514 -
041), torque upper nut (92250 - 12317 -
102) to 2301 -
2566 IN. LBS.
7.
Install lockwire (MS20995C32) on upper nut ( 92250 - 12317 - 102 ).
8.
Remove excess jointing compound or corrosion inhibitive compound using low - lint cleaning
cloth (A - A - 59323, Type II) moistened with acetone (ASTM D329).
9.
Apply continuous bead of sealant (AMS 3265, Class B) around interface of upper nut (92250 - 12317 -
102)
and
cylinder
( 92250 - 14056 - 101 ) in
trunnion assembly (92250 - 12275 -
041) .
This file contains export controlled information. See WARNING on first page.
S - 92 ALERT
ASB 92 - 32 - 008
SERVICE BULLETIN
Basic Issue ▪
January
21 / 20
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section 3.
ACCOMPLIS HMENT
INSTRUCTIONS (Continued)
10.
Re - install MLG shock strut. (Refer to Maintenance Manual SA S92A - AMM - 000, Task 32 - 11 - 02 - 900 -
002) .
(g)
If upper nut (92250 - 12317 -
101) is found on S - 92A NLG kit (92250 - 14512 -
011), replace using upper nut (92250 - 12317 -
102) as follows (Refer to Figure 4 ):
1.
Remove NLG shock strut. (Refer to Maintenance Manual SA S92A - AMM - 000, Task 32 - 21 - 02 - 900 -
001).
2.
Remove lockwire from upper nut (92250 - 12317 -
101) .
3.
Remove upp er nut (92250 - 12317 -
101) from trunnion assembly (92250 - 14515 -
041) using torque wrench assembly (MTOO58 - 14514 -
041).
4.
Install upper nut (92250 - 12317 - 10 2 ) on NLG.
5.
Using torque wrench assembly
(MTOO58 - 14514 -
041) , torque upper nut ( 92250 - 12317 - 10 2 ) to 2301 -
2566 IN. LBS.
6.
Remove excess corrosion inhibitive compound using low - lint cleaning
cloth (A - A - 59323, Type II) moistened with acetone (ASTM D329).
7.
Apply a continuous bead of sealant (AMS 3265, Class B) around interface of upper nut (92250 - 12317 - 1 0 2 )
with the cylinder ( 92250 - 14056 - 101 ).
8.
Re - install NLG shock strut. (Refer to Maintenance Manual SA S92A - AMM - 000, Task 32 - 21 - 02 - 900 - 00
2).
C.
Inspect for remaining FOD. Clean as required to remove remaining FOD .
D.
Return helicopter to service.
MAKE SURE ALL FOREIGN OBJECT DEBRIS (FOD) IS REMOVED BEFORE RETURNING HELICOPTER TO SERVICE.
This file contains export controlled information. See WARNING on first page.
ASB 92 - 32 - 008
S - 92 ALERT
Basic Issue ▪ January
21 / 20
SERVICE BULLETIN
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section 3.
ACCOMPLISHMENT
INSTRUCTIONS (Continued)
TABLE 1 –
AFFECTED
COMPONENT
SERIAL NUMBERS
-
SPARE
COMPONENTS
ONLY
Part No.
Serial No.
92250 - 12281 - 101
B2529 - 00054
92250 - 12281 - 101
B2529 - 00095
92250 - 12281 - 101
B2529 - 00096
92250 - 12281 - 101
B2529 - 00097
92250 - 12281 - 101
B2529 - 00098
92250 - 12281 - 101
B2529 - 00099
92250 - 12281 - 101
B2529 - 00103
92250 - 12281 - 101
B2529 - 00104
92250 - 12281 - 101
B2529 - 00105
92250 - 12281 - 101
B2529 - 00106
92250 - 12281 - 101
B2529 - 00107
92250 - 12281 - 101
B2529 - 00114
92250 - 12281 - 101
B2529 - 00117
92250 - 12281 - 101
B2529 - 00118
92250 - 12281 - 101
B2529 - 00120
92250 - 12281 - 101
B2529 - 00121
92250 - 12281 - 101
B2529 - 00127
92250 - 12281 - 101
B2529 - 00129
92250 - 12281 - 101
B2529 - 00130
92250 - 12281 - 101
B2529 - 00133
92250 - 12281 - 101
B2529 - 00134
92250 - 12281 - 101
B2529 - 00135
92250 - 12281 - 101
B2529 - 00136
92250 - 12281 - 101
B2529 - 00137
92250 - 12281 - 101
B2529 - 00138
92250 - 12281 - 101
B2529 - 00140
92250 - 12283 - 101
B2531 - 00103
92250 - 12287 - 101
B2533 - 00169
This file contains export controlled information. See WARNING on first page.
S - 92 ALERT
ASB 92 - 32 - 008
SERVICE BULLETIN
Basic Issue ▪
January
21 / 20
ATA
32 - 00 - 00
ONE - TIME
INSPECTION
Section 3 .
ACCOMPLISHMENT
INSTRUCTIONS (Continued)
TABLE 1 –
AFFECTED
COMPONENT
SERIAL NUMBERS -
SPARE COMPONENTS ONLY (Continued)
Part No.
Serial No.
92250 - 12287 - 101
B2533 - 00174
92250 - 12287 - 101
B2533 - 00177
92250 - 12287 - 101
B2533 - 00178
92250 - 12287 - 101
B2533 - 00179
92250 - 12287 - 101
B2533 - 00180
92250 - 12287 - 101
B2533 - 00181
92250 - 12287 - 101
B2533 - 00183
92250 - 12287 - 101
B2533 - 00188
92250 - 12287 - 101
B2533 - 00190
92250 - 12287 - 101
B2533 - 00191
92250 - 12287 - 103
B2533 - 00252
92250 - 12287 - 103
B2533 - 00258
92250 - 12317 - 101
Not Serialized, All
- 101 MLG/NLG Upper Nuts Need Replacement
This file contains export controlled information. See WARNING on first page.
A SB 92 - 32 - 008
S - 92 ALERT
Basic Issue ▪
January
21 / 20
SERVICE BULLETIN
Page
ONE - TIME
INSPECTION
ATA
32 - 00 - 00
S ection
3 .
A
CCOMPLISHMENT INSTRUCTIONS
(Continued )
TABLE 2
–
AFFECTED
COMPONENT
SERIAL NUMBERS
-
ASSEMBLED COMPONENTS
Parent Assembly Part No.
Parent Assembly Serial No.
Parent Assembly Nomenclature
Crossbolt -
MLG/NLG No. 1 (92250 - 12283 -
101)
Crossbolt -
MLG/NLG No. 2 (92250 - 12283 -
101)
Hinge Pin, Threaded (92250 - 12281 -
101)
Upper Nut
-
MLG/NLG
(92250 - 12317 -
101)
92250 - 12272 - 011
(92250 - 12274 -
041)
B2525 - 10012
S - 92A Left Main Landing Gear Kit
( Shock Strut ASSY - MLG )
B2531 - 00033
B2531 - 00039
B2529 - 00032
Not Serialized, All - 101
MLG/NLG Upper Nuts Need R eplacement
92250 - 12272 - 012
(92250 - 12274 -
041)
B2525 - 10013
S - 92A Right Main Landing Gear Kit
(Shock Strut ASSY - MLG)
B2531 - 00013
B2531 - 00023
B2529 - 00044
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10023
Shock Strut ASSY - MLG
B2531 - 00065
B2531 - 00096
B2529 - 00050
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10024
Shock Strut ASSY - MLG
B2531 - 00086
B2531 - 00091
B2529 - 00057
Not Serialized, All
- 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12272 - 011
(92250 - 12274 -
041)
B2525 - 10025
S - 92A Left Main Landing Gear Kit
( Shock Strut ASSY - MLG )
B2531 - 00084
B2531 - 00090
B2529 - 00060
Not Serialized, All
- 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12272 - 012
(92250 - 12274 -
041)
B2525 - 10026
S - 92A Right Main Landing Gear Kit
( Shock Strut ASSY - MLG )
B2531 - 00087
B2531 - 00088
B2529 - 00061
Not Serialized, All
- 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10029
Shock Strut ASSY - MLG
B2531 - 00100
B2531 - 00104
B2529 - 00058
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10030
Shock Strut ASSY - MLG
B2531 - 00098
B2531 - 00101
B2529 - 00059
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10031
Shock Strut ASSY - MLG
B2531 - 00102
B2531 - 00105
B2529 - 00062
Not Serialized, All
- 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10039
Shock Strut ASSY - MLG
B2531 - 00031
B2531 - 00052
B2529 - 00069
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10040
Shock Strut ASSY - MLG
B2531 - 00116
B2531 - 00119
B2529 - 00079
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10043
Shock Strut ASSY - MLG
B2531 - 00121
B2531 - 00125
B2529 - 00081
Not Serialized, All
- 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10046
Shock Strut ASSY - MLG
B2531 - 00127
B2531 - 00133
B2529 - 00082
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10047
Shock Strut ASSY - MLG
B2531 - 00130
B2531 - 00132
B2529 - 00093
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10050
Shock Strut ASSY - MLG
B2531 - 00126
B2531 - 00134
B2529 - 00090
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10051
Shock Strut ASSY - MLG
B2531 - 00131
B2531 - 00145
B2529 - 00092
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10057
Shock Strut ASSY - MLG
B2531 - 00303
B2531 - 00320
B2529 - 00115
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10058
Shock Strut ASSY - MLG
B2531 - 00317
B2531 - 00318
B2529 - 00116
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
This file contains export controlled information. See WARNING on first page.
S - 92 ALERT
ASB 92 - 32 - 008
SERVICE BULLETIN
Basic Issue ▪
January
21 / 20
ONE - TIME
INSPECTION
Section
3 .
A
CCOMPLISHMENT
INSTRUCTIONS
(Continued )
TABLE 2
–
AFFECTED
COMPONENT
SERIAL NUMBERS
-
ASSEMBLED COMPONENTS
(Continued )
Parent Assembly Part No.
Parent Assembly Serial No.
Parent Assembly Nomenclature
Crossbolt
-
MLG/NLG No. 1 (92250 - 12283 -
101)
Crossbolt -
MLG/NLG No. 2 (92250 - 12283 -
101)
Hinge Pin, Threaded (92250 - 12281 -
101)
Upper Nut -
MLG/NLG (92250 - 12317 -
101)
92250 - 12274 - 041
B2525 - 10059
Shock Strut ASSY - MLG
B2531 - 00322
B2531 - 00330
B2529 - 00100
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 12274 - 041
B2525 - 10062
Shock Strut ASSY - MLG
B2531 - 00308
B2531 - 00328
B2529 - 00145
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 14512 - 011
(92250 - 14514 -
041)
B2552 - 10004
S - 92A Nose Landing Gear Kit
(Shock Strut ASSY - NLG)
B2531 - 00025
B2531 - 00035
B2529 - 00038
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 14513 - 041
(92250 - 14514 -
041)
B2552 - 10006
Shock Strut Equipped - NLG
(Shock Strut ASSY - NLG)
B2531 - 00008
B2531 - 00040
B2529 - 00049
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 14512 - 011
(92250 - 14514 -
041)
B2552 - 10008
S - 92A Nose Landing Gear Kit
(Shock Strut ASSY - NLG)
B2531 - 00057
B2531 - 00066
B2529 - 00025
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 14514 - 041
B2552 - 10012
Shock Strut ASSY - NLG
B2531 - 00093
B2531 - 00094
B2529 - 00052
Not Serialized, All
- 101 MLG/NLG Upper Nuts Need Replacement
92250 - 14514 - 041
B2552 - 10023
Shock Strut ASSY - NLG
B2531 - 00309
B2531 - 00323
B2529 - 00139
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 14514 - 041
B2552 - 10025
Shock Strut ASSY - NLG
B2531 - 00310
B2531 - 00333
B2529 - 00102
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
92250 - 14514 - 041
B2552 - 10026
Shock Strut ASSY - NLG
B2531 - 00319
B2531 - 00329
B2529 - 00119
Not Serialized, All
- 101 MLG/NLG Upper Nuts Need Replacement
92250 - 14514 - 041
B2552 - 10028
Shock Strut ASSY - NLG
B2531 - 00290
B2531 - 00296
B2529 - 00141
Not Serialized, All - 101 MLG/NLG Upper Nuts Need Replacement
This file contains export controlled information. See WARNING on first page.