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© Sikorsky. Filed by the FAA in regulations.gov docket FAA-2023-0018, the docket of AD 2023-09-07. Not covered by OpenAirDocs’ CC0 dedication.
© Sikorsky. Filed by the FAA in regulations.gov docket FAA-2021-0689, the docket of AD 2022-02-01. Not covered by OpenAirDocs’ CC0 dedication.
- Manufacturer
- Sikorsky
- Type
- Alert Service Bulletin
- Number
- 92-62-009
- Copies
- 2 files of 1 revision
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Also cited in 1 proposed AD.
Text · 8
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ATA 62-31-01
ONE-TIME
INSPECTION S-92® HELICOPTER
ALERT SERVICE
BULLETIN NOTICE TO ALL PERSONS RECEIVING THIS DOCUMENT:
WARNING: THIS DOCUMENT, OR AN EMBODIMENT OF IT IN ANY MEDIA, DISCLOSES INFORMATION WHICH IS PROPRIETARY, IS THE PROPERTY OF LOCKHEED MARTIN CORPORATION AND/OR ITS SUBSIDIARIES, IS
AN UNPUBLISHED WORK PROTECTED UNDER APPLICABLE COPYRIGHT LAWS, AND IS DELIVERED ON THE EXPRESS CONDITION THAT IT IS NOT TO BE USED, DISCLOSED, REPRODUCED, IN WHOLE OR IN PART (INCLUDING REPRODUCTION AS A DERIVATIVE WORK), OR USED FOR MANUFACTURE FOR ANYONE OTHER THAN LOCKHEED MARTIN CORPORATION AND/OR ITS SUBSIDIARIES WITHOUT ITS WRITTEN CONSENT, AND THAT NO RIGHT IS GRANTED TO DISCLOSE OR SO USE ANY INFORMATION CONTAINED HEREIN. ALL RIGHTS RESERVED. ANY ACT IN VIOLATION OF APPLICABLE LAW MAY RESULT IN CIVIL AND CRIMINAL PENALTIES.
S-92® IS A REGISTERED TRADEMARK OF SIKORSKY AIRCRAFT CORPORATION.
ASB 92-62-009 Basic Issue ▪ February 6/19 SUBJECT: ROTORS – Main Rotor (MR) Swashplate Assembly – One-Time Visual Inspection of MR Stationary Swashplate Assembly for Cracks Section 1. P LANNING INFORMATION A. Effectivity All MR stationary swashplate assemblies (92104-15011-042 or -043) with more than 1600 hours Time Since New (TSN), including spares.
B. Purpose To provide instructions for a one-time inspection of MR stationary swashplate assembly for cracks.
C. Background An occurrence of an in-service crack was reported on MR stationary swashplate assembly inner ring during a recurring inspection. An inspection has been developed to determine if cracks are present. If cracks are found, the swashplate assembly, uniball bearing, trunnions, and all attachment hardware shall be returned to Sikorsky for further investigation.
D. Description Helicopter is prepared for inspection. Visual inspection of MR stationary swashplate assembly is performed. If cracks are found, swashplate assembly is removed and replaced and Sikorsky Customer Service Engineering is contacted. If any other damage is found, Sikorsky Customer Service Engineering is contacted with damage information. Helicopter is returned to service.
E. Compliance Compliance is essential. The inspection outlined herein shall be accomplished within 50 flight hours or no later than February 13, 2019, whichever occurs first.
Sikorsky Aircraft Corporation 6900 Main Street P.O. Box 9729 Stratford, Connecticut 06615-9129
(203) 386-4000
Page 1 of 6 WARNING – This file contains export controlled information subject to the EAR. ECCN EAR99
S-92 ALERT ASB 92-62-009 SERVICE BULLETIN Basic Issue ▪ February 6/19 ATA 62-31-01
ONE-TIME
INSPECTION Section 1. P LANNING lNFORMATION (Continued) F. Approval Inspection item.
G. Manpower (Estimated) Task No. of Men No. of Hours Man-Hours* Visual Inspection of MR Stationary Swashplate Assembly 1 0.5 0.5 Total Man-Hours 0.5 *Estimate does not include time required to prepare helicopter or return it to flight status.
H. Tooling None.
I. Weight and Balance Not affected.
J. Electrical Load Data Not affected.
K. Software Load Data Not changed.
L. References Maintenance Manual SA S92A-AMM-000, Tasks 62-31-01-900-001/-002.
M. Publications Affected
(1) Temporary Revision 62-39 against Maintenance Manual, SA S92A-AMM-000, Task 62-31- 00-215-001 will be released at a later date.
(2) Temporary Revision 62-40 against Maintenance Manual, SA S92A-AMM-000, Task 62-31- 01-210-001 will be released at a later date.
N. Attachment None.
Page 2 This file contains export controlled information. See WARNING on first page.
ASB 92-62-009 S-92 ALERT Basic Issue ▪ February 6/19 SERVICE BULLETIN ATA 62-31-01
ONE-TIME
INSPECTION Section 2. M ATERIAL INFORMATION A. Basis for Material Data Per helicopter.
B. Bill of Material None.
C. Consumable Material None.
Section 3. A CCOMPLISHMENT INSTRUCTIONS A. Prepare helicopter for inspection:
(1) Turn off all helicopter electrical and hydraulic power.
(2) Engage rotor brake.
NOTE: Disassembly of swashplate assembly is not required. All visual inspections shall be conducted with trunnions and hardware in place.
B. Visually inspect MR stationary swashplate assembly as follows:
(1) If necessary, disengage rotor brake, rotate MR to improve accessibility, and reengage rotor brake.
(2) Inspect around entire circumference of upper and lower surfaces of MR stationary swashplate assembly inner ring and upper and lower surfaces of trunnion attachment areas for cracks. (Refer to Figure 1).
(a) If cracks are found, remove swashplate assembly from service and install serviceable swashplate assembly. (Refer to Maintenance Manual SA S92A-AMM- 000, Tasks 62-31-01-900-001/-002). Contact Sikorsky Customer Service Engineering at 1-800-WINGED-S or e-mail: wcs_cust_service_eng.grsik@lmco.com and proceed to step C.
(b) If nicks, dents, scratches, and/or any other damage is found, contact Sikorsky Customer Service Engineering at 1-800-WINGED-S or e-mail:
wcs_cust_service_eng.gr-sik@lmco.com and provide location, size (length, width, and depth) and photos of damage for disposition. After performing disposition, proceed to step C.
(c) If no cracks, nicks, dents or any other damage is found, proceed to step C.
TO PREVENT ELECTRICAL SHOCK OF PERSONNEL OR
POSSIBLE DAMAGE TO HELICOPTER COMPONENTS, MAKE SURE TO TURN OFF ALL ELECTRICAL POWER.
Page 3 This file contains export controlled information. See WARNING on first page.
S-92 ALERT ASB 92-62-009 SERVICE BULLETIN Basic Issue ▪ February 6/19 ATA 62-31-01
ONE-TIME
INSPECTION Section 3. A CCOMPLISHMENT INSTRUCTIONS (Continued) C. Record Alert Service Bulletin (ASB) inspection on component log card for swashplate assembly (92104-15000-043/-044).
D. Return helicopter to service.
Page 4 This file contains export controlled information. See WARNING on first page.
ASB 92-62-009 S-92 ALERT Basic Issue ▪ February 6/19 SERVICE BULLETIN ATA 62-31-01
ONE-TIME
INSPECTION Section 3. A CCOMPLISHMENT INSTRUCTIONS (Continued)
MR STATIONARY SWASHPLATE ASSEMBLY INSPECTION LOCATIONS FIGURE 1 TD4825 SA
TOP VIEW
TRUNNION ATTACHMENT INSPECTION LOCATIONS SECTION A−A
INNER RING INSPECTION LOCATION (TRUNNION NOT SHOWN FOR CLARITY) AA
BOTTOM VIEW
Page 5 This file contains export controlled information. See WARNING on first page.
S-92 ALERT ASB 92-62-009 SERVICE BULLETIN Basic Issue ▪ February 6/19 ATA 62-31-01
ONE-TIME
INSPECTION Section 3. A CCOMPLISHMENT INSTRUCTIONS (Continued) E. Record of compliance:
(1) Make helicopter logbook entries to show compliance with this ASB as follows:
(a) Make helicopter level logbook entry on form SA7343-15 (Aircraft ASB Release Signoff).
(b) When ASB modifies a component that can be removed from this helicopter:
1. Make component log card entries on forms SA7343-22 (Aircraft Component Log Cards) and SA7343-21 (Component Log Cards), as applicable.
2. If a component modified by this ASB does not have a log card and the ASB does not create one, then annotate compliance on the next higher assembly that the component belongs to which does have a log card.
NOTE: If access to www.Sikorsky360.com is unavailable, complete attached ALERT SERVICE BULLETIN COMPLIANCE RECORD CARD and return it to Sikorsky Aircraft Corporation.
(2) Make an appropriate electronic compliance entry in the E-Notification section at www.Sikorsky360.com. Refer to User Guide located on the www.Sikorsky360.com/E- Notification Search page.
Page 6 This file contains export controlled information. See WARNING on first page.
(Fold over and tape closed)
SIKORSKY AIRCRAFT CORPORATION FACSIMILE NUMBER (817) 762-6715 EMAIL ADDRESS: product_safety.gr-sik@lmco.com ATTENTION: Gr-SIK, Product_Safety
SIKORSKY AIRCRAFT CORPORATION
(Fold Up to Arrows)
IMPORTANT NOTICE Upon COMPLIANCE with the attached ASB, Sikorsky requests your cooperation in completing and returning this ENTIRE PAGE by MAIL, FAX, or scan & EMAIL.
Please fill in the requested information at the bottom of the page, so we may maintain proper records documenting the configuration of your aircraft. This information is useful when determining configuration and effectivity of issues affecting fielded aircraft.
This request is in keeping with our policy to assure that our customers receive the latest information applicable for the maintenance of your aircraft. Thank you.
ALERT SERVICE BULLETIN: ________________ Compliance Record Card TITLE: ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ OWNER/OPERATOR: _____________________________________________________ SUBMITTED BY: ___________________________ DATE: ____________________
FOLLOWING SERIAL NUMBERS ARE NOT AFFECTED BY THIS ASB ASB HAS BEEN COMPLIED WITH ON HELICOPTER SERIAL NUMBERS:
___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________
No. 92-62-009 ROTORS – Main Rotor (MR) Swashplate Assembly – One-Time Visual Inspection of MR Stationary Swashplate Assembly for Cracks This file contains export controlled information. See WARNING on first page.
No Postage Necessary
BUSINESS REPLY MAIL FIRST-CLASS MAIL PERMIT NO. 432 BRIDGEPORT CT
POSTAGE WILL BE PAID BY ADDRESSEE
SIKORSKY AIRCRAFT CORPORATION Commercial Systems and Services Mailstop K100 124 QUARRY ROAD TRUMBULL, CT 06611 U.S.A.
ATTENTION:
Gr-SIK, Product_Safety
Please complete the form on the reverse side and FAX to FACSIMILE NUMBER (817) 762-6715 Or scan and email to:
EMAIL ADDRESS: product_safety.gr-sik@lmco.com or fold and return ENTIRE form to Sikorsky Aircraft Corporation This file contains export controlled information. See WARNING on first page.