# Piaggio Service Bulletin 80-0498: No revision named - Rights: © Piaggio. Filed by the FAA in regulations.gov docket FAA-2025-5027; AD 2026-05-10 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Piaggio Service Bulletin 80-0498](https://openairdocs.org/service-documents/piaggio/sb-80-0498.md) - Title as filed: Piaggio Service Bulletin 80-0498 - Pages: 19 - PDF: https://openairdocs.org/files/sha256/fd/80/fd804fd0a2b7ee44480748c84df75a5b1efccc30f74f84fd8eb493566a4e1253 - Page: https://openairdocs.org/service-documents/piaggio/sb-80-0498/file/fd804fd0a2b7 ## Text Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 1 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 The EASA states mandatory compliance with inspections, modifications or technical directives and related time compliance by means of relevant Airworthiness Directives. SERVICE BULLETIN (MANDATORY) N.: 80-0498 REV. 0 ATA CHAPTER: 27-50 MODIFICATION N.: Not applicable TITLE: FLIGHT CONTROLS – FLAPS SYSTEM TRANSMISSION SHAFT #1 AND #7 – INSPECTION / CLEARANCE CHECK / REPLACEMENT REVISION STATUS OF THE BULLETIN This MANDATORY Service Bulletin (MSB) is at original issue status and consists of 18 pages, plus Confirmation Slip (1 page). 1. PLANNING INFORMATION A. EFFECTIVITY Piaggio Aero Industries (PAI) P180 Avanti and Avanti II Manufacturer’s Serial Number (MSN): 1002, 1004 thru 3016 and 3018. B. CONCURRENT REQUIREMENTS Not applicable. C. REASON During a scheduled maintenance of a P1 80 Avanti airplane, an occurrence has been reported of damage ( signs of chafing ) of the LH outboard and inboard transmission shafts (#1 P/N C132761-1 and #7 P/N C132760-1). The root cause has been determined in a marginal clearance/distance between the shaft #1 and #7 and the wing rib at wing station (WS) 440 and between the shaft # 7 and the cabin door seal inflation system pneumatic pipe P/N 80-0207493-401 (valid only for the LH flap transmission installation). This condition, if not properly addressed, could degrade the functional integrity of the flap transmission system. This MSB provides instructions to identify the condition of shafts and to measure the clearance of the affected parts. It also includes the corrective actions in order to restore the acceptable distances. This MSB might be subject to an AD issued by EASA. ### Page 2 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 2 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 D. DESCRIPTION General This MSB consists of the following: (i) access to the inspection area(s) and location of the affected parts; (ii) inspection for condition of the LH/RH shafts and check for correct clearances (shaft-pipe, shaft(s)-rib); (iii) report to PAI and follow-up actions based on the inspection results (Part A); (iv) rework of wing rib(s) 440 and/or repair of the pneumatic pipe P/N, including post- rework/repair clearance checks (Part B); (v) additional final check and test; (vi) aircraft close-up and return to service. E. COMPLIANCE This MSB shall be accomplished during the next scheduled inspection or in any case within 220 FH, from the original issue date of this SB. Part A: following the inspections findings, reporting and accomplishment of different follow-up actions are necessary as specified in § 2.B. Part A of this MSB. Corrective actions: replacement and/or repair of the damaged shaft(s) and/or pneumatic pipe and restoration of the correct clearances (shaft-pipe, shaft(s)-rib) as per § 2.B. Part B of this MSB. Following inspections of the flaps system shall be performed in accordance with AMM standard inspection program. In compliance with this Service Bulletin, please complete the attached Confirmation Slip and send it back to Piaggio Aero Industries S.p.A. – Product Support Department. F. APPROVAL The technical content of this document is approved under the Authority of the DOA ref. EASA.21J.220. G. MANPOWER This MSB may be accomplished in approximately: A. Preparation: 16 man-hours (MH). ### Page 3 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 3 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 B. Procedure/Modification: 70 MH (worst-case scenario consisting of the replacement of all four flap shafts, rework of all four crossing holes on the wing ribs 440 and repair of the pneumatic pipe). C. Test & D. Close-up: 16 MH NOTE: it is assumed that the aircraft has been placed in a maintenance status. These estimates assume that the work will be done by experienced personnel, and may need to be revised to suit operator’s circumstances. Estimated man-hours do not include work planning and preparation, procurement of parts and/or tools, curing/drying times (if necessary) and the time required to return the aircraft to a flyable status. H. TECHNICAL INFORMATION For questions concerning the technical content of this Service Bulletin, please contact: Piaggio Aero Industries – P180 Customer Support via Pionieri e Aviatori d’Italia, snc - 16154 Genoa, Italy technicalsupport@piaggioaerospace.it : (+39) 331 679 74 93 I. MATERIAL – COST AND AVAILABILITY For pricing, availability and scheduling, please contact: spareparts@piaggioaerospace.it comm-civ@piaggioaerospace.it (+39) 335 810 59 20 J. TOOLING – COST AND AVAILABILITY When required, refer to § 1.I.. K. WEIGHT AND BALANCE Unchanged. L. ELECTRICAL LOAD DATA No effect. ### Page 4 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 4 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 M. REFERENCES Document Title Document Number Chapter/Section i Airplane Maintenance Manual (AMM) 9066 1 180-MAN-0200-01105 2 180-MAN-0200-01105(E) 3 06-00-00 12-00-00 20-00-01 20-10-05 24-00-00 27-50-00 36-11-00 ii Illustrated Parts Catalog (IPC) 9065 1 180-MAN-0100-01103 2 180-MAN-0100-01103(E) 3 21-10-00 21-30-00 27-50-00 iii Structural Repair Manual (SRM) 180-MAN-0250-01106 51-20-20 51-20-30 iv PAI Service Letter (SL) 80-0097 4,5 / Note: 1 P180 Avanti. 2 P180 Avanti II. 3 P180 Avanti II EVO. 4 Current revision. 5 “Warranty Claim & Failure Report procedure”. N. PUBLICATIONS AFFECTED Affected manuals will be verified and will be updated, as applicable, at their next regular revision or with relevant Temporary Revision(s). Document Title Document Number Chapter/Section i Airplane Maintenance Manual (AMM) 9066 1 180-MAN-0200-01105 2 180-MAN-0200-01105(E) 3 27-50-00 4 Note: 1 P180 Avanti. 2 P180 Avanti II. 3 P180 Avanti II EVO. 4 Amendment of the flap shafts installation procedure and addition of a new visual inspection task for the flap shafts. ### Page 5 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 5 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 2. ACCOMPLISHMENT INSTRUCTIONS Procedure NOTE 1: refer to AMM c hap. 20-00-01 for the Standard Practices Airframe, taking care to the health and safety precautions. NOTE 2: obey all of the warnings and cautions given in the specified manual sections. NOTE 3: for aircraft stations, zoning and location of access/inspection panels, refer to AMM chap. 06-00-00. NOTE 4: refer to AMM chap. 51-00-00 for Standard Practices and Structures and/or to SRM, as applicable. NOTE 5: all work, in particular that which is not explicitly described in this SB, must be performed in accordance with the approved manuals. NOTE 6 if it is necessary to remove more parts for access, you can remove those parts. If you can get access without removing identified parts, it is not necessary to remove all of the identified parts. NOTE 7: incomplete review of all the information in the following paragraphs can cause errors. Read the entire procedure as well as material and tool(s) necessities before beginning work to make sure you have a complete understanding of the requirements. A. PREPARATION NOTE 8: the steps in the Preparation section are recommendations to give a safe work area and to minimize possible damage to surrounding aircraft parts. Alternative and additional steps can be used at the operator’s discretion. (1) Configure the aircraft for standard maintenance (in accordance with AMM chap. 12-00- 00, TASK 12-00-00-860-801). (2) Extend the flaps. (3) Remove the LH and RH inboard flap in accordance with AMM chap. 27 -50-00, TASK 27-50-00-000-802. (4) De-energize the aircraft electrical system ( in accordance with AMM chap. 24 -00-00, TASK 24-00-00-000-801). (5) Make sure that the following circuit breaker(s) is(are) open, safetied and tagged: ### Page 6 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 6 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 CB PANEL DESIGNATION NO. PILOT L ENG START - PILOT R ENG START - CO-PILOT FLAPS PWR CB 107 CO-PILOT OUTB WING FLAP CB 152 (6) In the flight compartment put a warning notice to tell persons not to restore/apply the electrical power and operate the flaps. B. PROCEDURE/MODIFICATION NOTE 9: instructions provided below are to be applied to both LH and RH flap system installations unless otherwise specified. NOTE 10: the following procedure may require the access to areas and/or the removal of more parts/components that have not been previously indicated. If not described in the next steps, please refer to the appropriate manual and chapter for zone/panel location, access and/or removal/installation instructions. (7) Find the wing ribs (WS 440) P/N 80-201367-001 and P/N 80-201367-002 (refer to Figure 1 and NOTE 3). (8) Find the inboard flap transmission shaft (#7) P/N C132760-1 (1, Figure 1) and outboard transmission shaft (#1) P/N C132761-1 (2, Figure 1). Refer also to AMM and IPC chap. 27-50-00. (9) Find the pneumatic pipe P/N 80 -207493-401 at its connection to the emergency manifold, between WS 0 and LH WS 440. Refer also to IPC chap. 21-30-00 and NOTE 3. (10) Do the following inspections (use of an inspection mirror and a suitable light source is required): (10a) inspect the outboard and inboard flap transmission shafts (#1 and #7) for absence of damage and signs of chafing at the crossing holes/openings on wing rib 440 (an example of damage is shown in Figure 1, det. C); (10b) inspect the LH inboard flap transmission shaft (#7) and the pneumatic pipe P/N 80-207493-401 for absence of damage and signs of chafing that might be due ### Page 7 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 7 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 to a reduced clearance and reciprocal contact (an example of damage is shown in Figure 1, det. D). (11) Do the following clearance checks (use of a feeler gauge is required): (11a) measure the gaps between the outboard and inboard flap transmission shafts (#1 and #7) and the relevant crossing holes/openings on wing rib 440 (refer to 1 and 2, Figure 2); (11b) measure the gap between LH inboard flap transmission shaft (#7) and the pneumatic pipe P/N 80-207493-401 (refer to 3, Figure 2). (12) Proceed with Part A for further actions based on inspection findings and data collected. PART A (13) Following the inspection s and checks defined in step (1 0) and (11) , fill out the Confirmation Slip of this MSB with all the required data and report to Piaggio Aerospace - Product Support Department (refer to §1.H.). If any damage is detected, fill out and report also a Failure Report form (in accordance with PAI SL no. 80-0097) including all the relevant information. (14) On the basis of the inspection/check findings, the following actions shall be undertaken: Case 1 (a) Finding: absence of damage on all four (4) transmission shafts and on the pneumatic pipe, and clearance between the LH/RH outboard/inboard flap transmission shafts (#1 and #7) and the relevant crossing holes/openings on LH/RH wing rib 440 greater than or equal to 4 mm, and gap between LH inboard flap transmission shaft (#7) and the pneumatic pipe greater than 12.5 mm. (b) Action: no further action is required and a ircraft can continue safe flight . Following inspections will be performed in accordance with the aircraft standard inspection program. (c) Compliance Time: not applicable. ### Page 8 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 8 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 (d) Repetitive Inspection: following inspections will be performed in accordance with the aircraft standard inspection program. Case 2 (a) Finding: absence of damage on all four (4) transmission shafts and on the pneumatic pipe, and clearance between one or more outboard/inboard flap transmission shafts (#1 and #7) and the relevant crossing holes/openings on LH/RH wing rib 440 less than 4 mm but greater than 2.5 mm, and gap between LH inboard flap transmission shaft (#7) and the pneumatic pipe greater than 12.5 mm . (b) Action: the crossing hole/opening on the wing rib( s) 440 relevant to the measured clearance range between 2.5 and 4 mm, shall be reworked in accordance with Part B i). (c) Compliance Time: within 660 FH after the inspections as per step (10) and (11). (d) Repetitive Inspection: at intervals not exceeding 220 FH perform the inspections/checks as per step (10) and (11) of this SB, up to the accomplishment of the action (b) above. Report to PAI of the inspection/check findings as per PART A step (13) is required. Post-rework inspections will be performed in accordance with the aircraft standard inspection program. Case 3 (a) Finding: absence of damage on all four (4) transmission shafts and on the pneumatic pipe, and clearance between one or more outboard/inboard flap transmission shafts (#1 and #7) and the relevant crossing holes/openings on LH/RH wing rib 440 less than 2.5 mm, and gap between LH inboard flap transmission shaft (#7) and the pneumatic pipe greater than 12.5 mm. ### Page 9 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 9 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 (b) Action: the crossing hole/opening on the wing rib(s) 440 relevant to the measured clearance less than 2.5 mm, shall be reworked in accordance with Part B i). (c) Compliance Time: within 220 FH after the inspections as per step (10) and (11). (d) Repetitive Inspection: at intervals not exceeding 110 FH perform the inspections/checks as per step (10) and (11) of this SB, up to the accomplishment of the action (b) above. Report to PAI of the inspection /check findings as per PART A step (13) is required. Post-rework inspections will be performed in accordance with the aircraft standard inspection program. Case 4 (a) Finding: damage on one or more transmission shafts and /or on the pneumatic pipe or gap between LH inboard flap transmission shaft (#7) and the pneumatic pipe less than 12.5 mm . (b) Action: aircraft can continue safe flight provided that: (b1) the crossing hole/opening on the wing rib(s) 440 relevant to the damaged shaft(s) is(are) reworked in accordance with Part B i) , if necessary; (b2) the damaged pneumatic pipe is repair ed in accordance with Part B ii), if necessary; (b3) the damaged transmission shaft(s) is(are) replaced with airworthy one(s) in accordance with AMM chap. 27-50-00, TASK 27-50-00- 000-811 (removal) and TASK 27-50-00-400-811 (installation). (c) Compliance Time: before next flight. (d) Repetitive Inspection: following inspections will be performed in accordance with the aircraft standard inspection program. ### Page 10 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 10 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 PART B i) Rework of the wing rib(s) 440 (LH P/N 80-201367-001 , RH P/N 80-201367-002) NOTE 12: the following procedure may require the access to areas and/or the removal of more parts/components that have not been previously indicated. If not described in the next steps, please refer to the appropriate manual and chapter for zone/panel location, access and/or removal/installation instructions . Operators can therefore, as deemed necessary, add access and/or removal/installation steps to ease the work and add flexibility to their maintenance operations. (15) Depending on the measured clearance and/or the presence of a damaged shaft, find the relevant wing rib 440 that needs to be reworked. (16) Remove the flap shafts #1 and #7 in accordance with AMM chap. 27-50-00, TASK 27-50-00-000-811. (17) Rework the edge(s) of the affected crossing hole(s)/opening(s) as indicated in Figure 3, det. A. (18) Restore the protective treatment in accordance with SRM chap. 51 -20-20 (conversion coating) and chap. 51-20-30 (primer). (19) Make sure that the work areas are clean and clear of tools and other items of equipment. (20) Install the flap shafts #1 and #7 in accordance with AMM chap. 27-50-00, TASK 27-50-00-400-811. (21) Perform a clearance check at the reworked crossing hole(s)/opening(s) as per § 2.B. step (11a) and verify that the measured value is greater than 4 mm. ### Page 11 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 11 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 ii) Repair of the pneumatic pipe (P/N 80-207493-401) NOTE 13: the following procedure may require the access to areas and/or the removal of more parts/components that have not been previously indicated. If not described in the next steps, please refer to the appropriate manual and chapter for zone/panel location, access and/or removal/installation instructions . Operators can therefore, as deemed necessary, add access and/or removal/installation steps to ease the work and add flexibility to their maintenance operations. NOTE 14: refer to AMM chap. 20 -10-05 for tubin g maintenance and standard practices (Permaswage). (22) Remove the LH inboard flap shaft #7 (1, Figure 1) in accordance with AMM chap. 27-50-00, TASK 27-50-00-000-811. Discard the shaft, if damaged. (23) Find the pneumatic pipe P/N 80-207493-401 (refer to Figure 3). (24) Cut the pneumatic pipe at the position shown in Figure 3. (25) Disconnect the upper segment of the cut pneumatic pipe (1, Figure 3) from the emergency manifold and discard it. (26) Deburr the cut end of the segment of the pipe left on the aircraft (2, Figure 3), as required. (27) Make sure that the work areas are clean and clear of tools and other items of equipment. (28) Procure a new pneumatic pipe P/N 80-207493-401 (§ 3.A. item 3). (29) Make sure that the pipe end fitting(s) are not damaged. Examine the pipe for cracks, nicks, deformations, etc. Reject and replace pipe that shows signs of damage. CAUTION 1: YOU MUST BE CAREFUL WITH THE PIPE(S) TO PREVENT IMPACTS, DISTORTIONS AND SCRATCHES. CAUTION 2: TO PREVENT CONTAMINATION OF THE SYSTEM, DO NOT APPLY LUBRICANT TO THE PIPE(S) AND/OR FITTING(S). ### Page 12 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 12 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 CAUTION 3: MAKE SURE YOU DO NOT TWIST AND OR BEND THE PIPE WHEN YOU INSTALL IT SINCE YOU CAN PUT A LOAD ON IT WHICH CAN DAMAGE IT. (30) Cut the new pneumatic pipe in order to obtain a new upper segment (1, Figure 3) necessary to restore the entire pneumatic pipe. (31) Deburr the cut end of the new upper segment, as required. (32) Before repairing and restoring the pneumatic pipe, clean the new upper segment as follows: blow dry nitrogen at 35 PSI into the pipe and verify that it freely flow s out from the opposite side. (33) Put the new upper segment in position as shown in Figure 3 and make sure that it is not too short or too long. (34) Connect the new upper segment (1, Figure 3) to the emergency manifold and tighten the attachment nut with your hand only sufficiently to prevent that the pipe falls. (35) Joint the new upper segment (1, Figure 3) and the old segment of the pipe left on the aircraft (2, Figure 3) in accordance with AMM chap. 20-10-05. (36) Make sure that the installed new pipe does not touch the fixed structure, parts that move and other parts. (37) Torque the connection of the new upper segment to the emergency manifold, as required. (38) Make sure that the work areas are clean and clear of tools and other items of equipment. (39) Use a pipe marker or eqivalent and identify the repaired pneumatic pipe as “repaired P/N 80-207493-401 post SB-80-0498”. (40) Install the LH inboard flap shaft (#7) in accordance with AMM chap. 27 -50-00, TASK 27-50-00-400-811. (41) Perform a clearance check between LH inboard flap transmission shaft (#7) and the repaired pneumatic pipe P/N 80-207493-401 as per § 2.B. step (11b) and verify that the measured value is greater than 12.5 mm ### Page 13 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 13 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 (42) Perform a clearance check as per § 2.B. step (11a) and verify that the measured value is greater than 4 mm. C. TEST (43) Install the LH and RH inboard flap in accordance with AMM chap. 27 -50-00, TASK 27- 50-00-400-802. (44) Do an operational test of the flaps system in accordance with AMM chap. 27-50-00, TASK 27-50-00-710-802. Carefully perform a visual check that there is no significant change of the clearances during the rotation of the affected transmission shafts. (45) If the pneumatic pipe P/N 80 -207493-401 has been repaired, perform an operational test of the cabin door seal inflation system in accordance with AMM chap. 36 -11-00, TASK 36-11-00-710-801. D. CLOSE-UP (46) Remove all tools, equipment and unwanted materials from the aircraft. (47) Make sure that the work areas are clean and clear of tool(s) and other items. (48) Restore the systems and the aircraft to normal operating conditions. (49) Remove the warning notice from the flight compartment. E. DOCUMENTATION (50) Complete the attached Confirmation Slip and send it back to Piaggio Aero Industries S.p.A. – Product Support Department. (51) Make an appropriate entry in the airplane logbook to show compliance with this Service Bulletin. ### Page 14 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 14 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 Figure 1 - Flap system between wing station (WS) 0 and WS 1195. 2 VIEW A VIEW A NOTE LH SIDE SHOWN RH SIDE IS SIMILAR UNLESS OTHERWISE SPECIFIED SUPPORT P/N 80-363284-001 3rd SPAR AXIS WING FWD SPAR AXIS WING REAR SPAR AXIS VIEW B VIEW B WING REFERENCE PLANE 2 1 2 STA 1195 WS 440 WS 440 LEGEND 1 - P/N C132760-1 (SHAFT #7) 2 - P/N C132761-1 (SHAFT #1) 1 det. C det. D (damage possible only on the LH flap shaft #7) ### Page 15 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 15 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 Figure 2 - Clearence checks. VIEW A VIEW B VIEW A (for ease of reading, not all the parts/structural elements in the area are shown) VIEW B (for ease of reading, not all the parts in the area are shown) RH WING RIB 440 FDU PNEUMATIC PIPE LH FLAP SHAFTS LH WING RIB 440 LH WING RIB 440 RH WING RIB 440 3 1 2 NOTE 1 LH WS 440 SHOWN. RH WS 440 IS SIMILAR UNLESS OTHERWISE INDICATED NOTE 2 LH WS 440 SHOWN. VALID ONLY FOR THE LH FLAP SHAFT #7 PNEUMATIC PIPE SHAFT #1 SHAFT #7 SHAFT #1 SHAFT #7 ### Page 16 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 16 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 Figure 3 - Rework of the wing rib(s) and repair of the pneumatic pipe P/N 80-207493-401. SHAFT #1 CROSSING HOLE SHAFT #7 CROSSING HOLE det. A TO BE REMOVED TO BE REMOVED NOTE 1 FLAP SHAFT #1 AND #7 NOT SHOWN NOTE 2 LH FLAP SHAFT #7 NOT SHOWN PNEUMATIC PIPE (1) [to be replaced] PNEUMATIC PIPE PNEUMATIC PIPE BAG. COMP. FLOOR (REF.) NOTE 3 REFER TO IPC CHAP. 21-30-00 d d = 200 ± 20 mm LH INBOARD VIEW LH REAR MLG COMP. TO BE CUT CONNECTION TO EMER. MANIFOLD PNEUMATIC PIPE (2) [remains on board] ### Page 17 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 17 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 3. MATERIAL INFORMATION A. LIST OF MODIFICATION KIT COMPONENTS Part/Number Specification Supplier Q.ty Type Designation [Note] SB 80-0498 Rev.0 Piaggio Aero Ind. 1 Kit Kit Service Bulletin 1 C132760-1 Collins Aerospace (Microtecnica) A/R Part LH/RH inboard flap shaft #7 [A] 2 C132761-1 Collins Aerospace (Microtecnica) A/R Part LH/RH outboard flap shaft #1 [A] 3 80-207493-401 Piaggio Aerospace A/R Ass.ly Pneumatic pipe [B] Note: [A] Quantity (0, 1 or 2) depends on the inspection finding as per § 2.B. step (10a). [B] Quantity (0 or 1) depends on the inspection finding as per § 2.B. step (11a). Additional information: material CRES steel 304 1/8 HD; dia. 4.76 mm B. LIST OF MATERIALS – OPERATOR SUPPLIED Not apllicable. C. LIST OF TOOLS Nomenclature P/N or Spec. Supplier Purpose [Note] 1 Flashlight - Commercially available Shafts inspection 2 Mirror - Commercially available Shafts inspection 3 Feeler gauges - Commercially available Clearence check [A] Note: [A] 2.5 thru 5 mm and 6.5 thru 12.5 mm. D. DISPOSAL OF REMOVED PART Not applicable. ### Page 18 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department Original Issue: August 2nd, 2024 Service Bulletin: 80-0498 Rev. N. 0 Date: Page: 18 of 18 EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 E. WARRANTY CREDIT PROGRAM Not applicable. 4. WARNING - PROPRIETARY RIGHTS This bulletin contains proprietary information of Piaggio Aero Industries S.p.A. (PAI), which PAI provides in confidence and solely for the purposes of supporting PAI products and providing applicable information regarding the proper use, maintenance, inspection, repair, servicing and parts application of PAI products. Neither t his bulletin nor any information in it may be disclosed to others, or used for any other purpose, including, without limitation, to design, create, develop, reproduce, manufacture or derive any design, part, product, material, process, modification, configuration change or repair, or obtain any government approval to do so. This material is the exclusive property of Piaggio Aero Industries S.p.A. and therefore shall not be reproduced, used or disclosed to others except as authorized by contract with Piaggio Aero Industries S.p.A. or without the written permission of Piaggio Aero Industries S.p.A.. ### Page 19 PIAGGIO AERO INDUSTRIES S.p.A. in A.S. Via Pionieri e Aviatori d’Italia - 16154 Genoa, Italy Product Support Department EXPORT CONTROL COMPLIANCE: This document might contain controlled technology subject to national and international Export Control Restrictions; retransfer is prohibited unless previously authorized by Piaggio Aero Industries S.p.A. in A.S. Mod. D007_ed_4 CONFIRMATION SLIP Please e-mail the completed form to technicalsupport@piaggioaerospace.it Service Bulletin Accomplishment SB-80-0498 Rev.0 A/C S/N: A/C Flight Hours: A/C LGDS: A/C Registration: Date: Accomplished by: Item P/N S/N Damage/signs of interference LH wing rib 440 RH wing rib 440 Pneumatic pipe (P/N 80-207493-401) Outboard flap shaft (#1) C132761-1 (LH) (RH)  Y  N  GAP < 2.5 mm  GAP > 2.5 mm & < 4 mm  GAP > 4 mm  GAP < 2.5 mm  GAP > 2.5 mm & < 4 mm  GAP > 4 mm Inboard flap shaft (#7) C132760-1 (LH) (RH)  Y  N  GAP < 2.5 mm  GAP > 2.5 mm & < 4 mm  GAP > 4 mm  GAP < 2.5 mm  GAP > 2.5 mm & < 4 mm  GAP > 4 mm Inboard flap shaft (#7) C132760-1 (LH)  Y  N  GAP < 12.5 mm  GAP ≥ 12.5 mm Inspection/check findings: Case 1 Case 2 Case 3 Case 4 (If necessary, photos can be attached/sent separately) Signature: --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.