PIPER CONSIDERS COMPLIANCE MANDATORY
This is a truncated version of the service bulletin for a copy of the complete service bulletin, download the attachment below:
Service Bulletin (SB) 1375C supersedes SB 1375, SB 1375A, and SB 1375B in their entirety. If any of the four factory original screws in the upper flange were replaced with oversize fasteners as part of compliance with SB1375A, contact Piper for disposition. Aircraft that have complied with SB 1375B are in compliance with SB 1375C.
WARNING: SB 1375A SPECIFIED INCORRECT REPLACEMENT SCREWS FOR THE UPPER FLANGE. ACCORDINGLY, IF ANY OF THE FOUR FACTORY ORIGINAL SCREWS IN THE UPPER FLANGE WERE REPLACED WITH OVERSIZE FASTENERS AS PART OF COMPLIANCE WITH SB1375A, THE AIRCRAFT MAY NO LONGER BE AIRWORTHY, CONTACT PIPER FOR DISPOSITION.
SUBJECT: periodic replacement of main landing gear attachment hardware
REASON FOR REVISION: SB 1375C revises the instructions for clarity and corrections.
MODELS and serial numbers affected:
COMPLIANCE TIME: For affected aircraft which have accrued 2,000 hours time in service (TIS) or seven (7) calendar years TIS, initial compliance is to coincide with the next regularly scheduled maintenance event, but not to exceed the next 100 hours TIS. Thereafter, compliance shall be at a recurring interval of 2,000 operating hours TIS or 7 calendar years TIS, whichever occurs first.
APPROVAL: The engineering aspects of this service document have been shown to comply with the applicable Federal Aviation Regulations and are FAA approved.
PURPOSE: A review of service history reveals that for the affected aircraft, the landing gear mounting hardware is subject to metal fatigue, hole wear and corrosion. Failure of this hardware could result in a landing gear collapse. Hole wear may cause fretting fatigue cracking.
This service bulletin provides instructions for the recurring replacement of this hardware and bolt hole inspection.
INSPECTION METHOD: Eddy Current Inspection Method
Follow the instructions in the Service Bulletin.
AVAILABILITY OF PARTS: Procure locally and/or at your Piper Approved Service Center – Find your local service center at https://www.piper.com/
EFFECTIVITY DATE: This service bulletin is effective on May 23, 2023.
SUMMARY: Please contact your Piper Approved Service Center to make arrangements for compliance with this service bulletin in accordance with the compliance time
indicated.
NOTE: Please notify the factory of any address/ownership corrections. Changes should include aircraft model, serial number, and current owner’s name and address.
Corrections and/or changes should be directed to:
or: CustomerService@piper.com Please include in subject line: “Aircraft ownership update”
