# Goodrich Alert Service Bulletin 76378-500-25-P01 Copy: No revision named ("Goodrich ASB 76378-500-25-P01 Rev 0"), 10 pages: PDF https://openairdocs.org/files/sha256/18/19/18197dc103b05f97195903700b8e31732377c4fb723d0fa4ef08af0ef44a5d13; text https://openairdocs.org/service-documents/goodrich/76378-500-25-p01/file/18197dc103b0.md. Rights: © Goodrich. Filed by the FAA in regulations.gov docket FAA-2021-0299; AD 2021-08-16 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. ## Details - Manufacturer: [Goodrich](https://openairdocs.org/service-documents/goodrich.md) - Type: Service bulletin (Alert Service Bulletin) - Number: 76378-500-25-P01 - Page: https://openairdocs.org/service-documents/goodrich/76378-500-25-p01 ## ADs that cite it (1) (OpenAirDocs) Newest first, with the revision each names, as OpenAirDocs read it from the AD's text. - [AD 2021-08-16](https://openairdocs.org/ad/2021-08-16.md), effective May 11, 2021: No revision named ## Text (10 pages) Rights: © Goodrich. Filed by the FAA in regulations.gov docket FAA-2021-0299; AD 2021-08-16 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 1 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 EQUIPEMENT / FURNISHING: One time verification for no damage on cable hook side and preventing actions. 1. Planning information A. Effectivity This Alert Service Bulletin applies to the Electric Hoists P/N 76378-500. B. Concurrent requirements Not applicable C. Reason (1) One customer reported cases of cable diameter restriction located at about 1 cm from the swaged end – see figure 1. The cable diameter restriction was located at the edge of the lower cup of the hook assembly. Figure 1: Cable diameter restriction and localization in the hook assembly. (2) The technical investigations in progress suspected that possible improper hook assembly stowage combined with interactions between the hook assembly cup and the cable (back and forth motion) could induce such damages during flights. Cable diameter restriction Localization ### Page 2 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 2 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 D. Description This Alert Service Bulletin provides instruction for: - One time checks : o Visual inspection of cable near swaged terminal (Chapter 3. A.). o Verification of stowage force on the hook assembly (Chapter 3. B.). - Periodic checks: o Additional check every 25 Flight Hours (Chapter 3. C.). - Reminder: o Performing correct hook assembly stowage procedure (Chapter 3. D.) E. Compliance The one time checks provided by this Alert Service Bulletin have to be performed: - For the hoists in operations, 14 days after the receipt of this Alert Service Bulletin, - For the hoists in storage, at the first installation of the hoist on helicopter. F. Approval The technical information contained in this Manufacturer's Alert Service Bulletin has been agreed with Wytwórnia Sprzętu Komunikacyjnego “PZL -Świdnik” S.A. under Design Organization approval EASA.21J.114. G. Manpower The time for each additional periodic check is estimated to 1 hour. H. Weight and balance Not applicable. I. Electrical load data Not applicable. J. Software accomplishment summary Not applicable. K. References - Component Maintenance Manual (CMM) 25- 64-90. L. Publication affected - Component Maintenance Manual intermediate level (CMM) 25- 64-90. - Component Maintenance Manual Depot level (CMM) 25- 64-90-31. ### Page 3 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 3 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 M. Interchangeability or intermixability of parts (1) Interchangeability Not applicable (2) Intermixability Not applicable. 2. Material information A. Material – Price and availability (1) Material to be purchased None. (2) Material to be supplied by the operator None. B. Industry support information Not applicable. C. Material necessary for each equipment Not applicable. D. Material necessary for each spare Not applicable. E. Re-identified parts Not applicable. F. Tooling – price and availability Not applicable. ### Page 4 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 4 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 3. Accomplishment instructions A. Visual inspection of the cable near swaged terminal to detect cable diameter restriction (1) Remove the bottom part of the hook assembly in accordance with para 2.B of chapter DISASSEMBLY of CMM. (2) Disengage and lift up the hook assembly on about 30 cm in order to observe properly the cable near swaged terminal (see figures 2 and 3). (3) Clean and wash part of the cable near swaged terminal as required. (4) Verify the cable condition on at least 12 cm length from the cable swaged terminal (see figures 2 and 3)  Check cable diameter restriction on the 12 cm length. Specially verify diameter at about 1 cm from the cable swaged terminal. Cable minimum diameter must be ≥ 4.60 mm (0.181 in), as written in para 4.C.(4)(e)2 of chapter CHECK of the CMM.  Check on the 12 cm length for damages as written in para 4.C.(4)(e)2 of chapter CHECK of the CMM. Note: the correct cable diameter measurement procedure is described by figure 503 of chapter Check of the CMM. Part of the cable to be checked Sample of cable damaged Figure 2 Figure 3 30 cm 12 cm cm Cable swaged terminal Hook assembly Suspected zone ### Page 5 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 5 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 (a) If the cable is not compliant, it must be replaced. If the cable is not compliant due to cable diameter restriction: - The following data must be recorded and transmitted to Desk-customer.Stouen@collins.com or Desk-Customer.Stouen@utas.utc.com  Cable S/N  Hoist S/N  Controller S/N  Hoist number of cycles  Cable number of cycles  Flight hours since last cable replacement  Helicopter S/N  Diameter measurement at restriction  Restriction location from swaged terminal  Diameter measurement on rest of cable (average) - The defective cable must be sent for investigation to the following address: 1 If sent from a country of the European Union GOODRICH ACTUATION SYSTEM HOIST AND WINCH DIVISION 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX France Desk-customer.Stouen@collins.com or Desk-Customer.Stouen@utas.utc.com 2 If sent from a country not belonging to the European Union, refer to: Desk-customer.Stouen@collins.com or Desk-Customer.Stouen@utas.utc.co (b) If the cable is compliant: - Lubricate again generously with oil MIL-L-23699 or MIL-L-7808 this portion of cable. - Reassemble bottom part of hook assembly on the upper part per para 3.D of chapter Assembly of CMM. - Bring back hook assembly to the stowage position (see Chapter 3. D. of this Alert Service Bulletin) - Fill the hoist and cable Log Cards by indicating compliance with this Alert Service Bulletin 76378-500-25-P01. ### Page 6 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 6 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 B. One time verification of the correct hook assembly stowage force. (1) Verify the force of the “hook compression function” of the hook assembly; (a) Prepare a dead load of 40 kg to be hanged to the cable hook. (b) Helicopter on ground, supply 28 VDC to the Electronic Control Box P/N 61148- 016 with external ground equipment or battery of the helicopter (if battery really supplies 28 VDC). (c) Reel out enough cable length to attach the hook to th e dead load. Then reel in to lift the load for a few centimeters. (d) Activate manually with a rod the up limit lever upwards - see figure 4. (e) Activate the control pendant fully in the up direction and verify after 2 seconds that: 1 The load is lifted up (even with a slow speed) 2 Add dead weight to the hanged load progressively until it completely stops (no more motion) or until 100kg is reached. Figure 4: up limit lever activation Up limit lever ### Page 7 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 7 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 (f) The following data must be recorded and transmitted to Desk-customer.Stouen@collins.com or Desk-Customer.Stouen@utas.utc.com  Load (kg) at complete stop  Cable S/N  Hoist S/N  Controller S/N  Hoist number of cycles  Cable number of cycles  Flight hours since last cable replacement  Helicopter S/N  Presence of diameter restriction on cable as per Chapter 3. A. of this Alert Service Bulletin  Diameter measurement at restriction  Restriction location from swaged terminal  Diameter measurement on rest of cable (average) (g) Reel out the dead load until on ground. Unhook dead load. (h) Perform correct hook stowage in accordance with Chapter 3.D. of this Alert Service Bulletin. ### Page 8 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 8 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 C. Additional Check every 25 Flight Hours (1) Check cable for diameter restriction as described in chapter 3. A. of this Alert Service Bulletin (2) Record diameter restriction even if diameter is above 4.60mm. (3) If cable diameter restriction has reached a diameter under 4.60 mm (0.181 in), as written in para 4.C.(4)(e)2 of chapter CHECK of the CMM: (a) Cable must be replaced (b) The following data must be recorded and transmitted to Desk-customer.Stouen@collins.com or Desk-Customer.Stouen@utas.utc.com  Cable S/N  Hoist S/N  Controller S/N  Hoist number of cycles  Cable number of cycles  Flight hours since last cable replacement  Helicopter S/N  HISTORY of Diameter measurements at restriction (each 25 Flight hours)  Restriction location from swaged terminal  Diameter measurement on rest of cable (average) ### Page 9 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 9 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 D. Procedure to assure correct Hook assembly stowage at the up limit: CAUTION: IT IS NOT ALLOW ED AT ANY TIME TO HANG A F AST SLIDING ROPE ON THE HOOK ASSEMBLY FOR RAPPELLING METHODS. CAUTION: WHEN THE HOISTING MI SSION IS FINISHED, H OOK ASSEMBLY MUST BE PLACED, WITHOUT LOAD HANGED ON HOOK, AT THE UP-LIMIT STOWAGE POSITI ON (SEE FIGURE 5 ). IF THIS INSTRUCTION IS NOT RESPECTED , THIS WOULD INDUCE PREMATURE CABLE DAMAGES DURING FLIGHTS. When hook assembly reaches up limit position and before switching off hoist mission selector, operator must perform the hook stowage using the following procedure: After a first cable reeling-in stop (when upper part of the hook assembly activates the up limit lever) continue to activate control pendant in the up direction. After two seconds (2s) the cable reeling-in starts again at very low speed. Reel in command on the control pendant shall be maintained until hook spring is fully compressed as shown on Figure 5 (until cable completely stops). This procedure allows proper stowage position of the hook assembly which prevents swinging during flights. Make sure hook assembly is steadily pressed onto the cable-guide-sleeve. Figure 5: Proper stowage of hook assembly CAUTION: NO LOAD MUST BE HANGED ON HOOK DURING HOOK STOWING OR WHEN HOOK IS ALREADY IN STOWAGE POSITION. The hook assembly is properly at the stowage position when: • Proper compression of the spring; • Bottom cup , rubber and upper cup are steadily pressed together on cable-guide sleeve. BOTTOM CUP UPPER CUP RUBBER STOP CABLE-GUIDE CABLE GUIDE SLEEVE ### Page 10 Goodrich Actuation Systems FA3T1 DIVISION HOIST AND WINCH, 13, AVENUE DE L’EGUILLETTE - SAINT-OUEN-L’AUMONE - BOITE POSTALE 7186 - 95056 CERGY PONTOISE CEDEX FRANCE - Tel. 33134326300 ALERT SERVICE BULLETIN 76378-500-25-P01 Page 10 /10 The data and information contained herein are proprietary to GOODRICH ACTUATION SYSTEMS. Copy and distribution to a third party are strictly forbidden. NOT DESIGNED FOR MILITARY USE. Not controlled under the European Export Regulation on dual use items DATE: DEC 03/2019 REVISION: 0, dated DEC 03/2019 4. Appendix A. Family tree chart of modification relationships Hoists 76378-500 No change of Part Number and no amendment SB 76378-500-25-P01 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. 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