# Proposed AD FAA-2013-0752: Pacific Scientific Company Seat Restraint System Rotary Buckle Assemblies

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-07-13
- Products: Pacific Scientific
- Product type: Appliance
- Action: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period.
- Published: September 24, 2020, 85 FR 60100
- Comments due: November 9, 2020
- Became: [AD 2021-07-13](https://openairdocs.org/ad/2021-07-13)
- Docket: FAA-2013-0752 (https://www.regulations.gov/docket/FAA-2013-0752, where comments are filed)
- FR document: 2020-20624
- Official PDF: https://openairdocs.org/files/sha256/b0/3f/b03fb4e1fda7fa775c61e5a9156ce77413df22d55a1f59d8eae455c7a57effdc (from https://www.govinfo.gov/content/pkg/FR-2020-09-24/pdf/2020-20624.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/09/24/2020-20624/airworthiness-directives-pacific-scientific-company-seat-restraint-system-rotary-buckle-assemblies
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B4A3CDF6A879053D862585ED004EAA8C.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0752

## Summary

The FAA is reopening the comment period for an earlier proposed rulemaking (NPRM) for certain Pacific Scientific Aviation Services seat restraint rotary buckle assemblies (buckles). The NPRM proposed to require inspecting each buckle and buckle handle vane, and depending on the inspection results, removing the buckle from service and installing an airworthy buckle. The NPRM also proposed to prohibit the installation of the affected buckles. The NPRM was prompted by several reports of cracked buckle handles. This action reopens the comment period because a significant amount of time has elapsed since the NPRM was published. Additionally, this action clarifies the applicability and updates nomenclature, contact information, and the design approval holder's (DAH) name.

## Notices in this docket

- Sep 5, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-21570, comments due Nov 4, 2013 (https://www.federalregister.gov/documents/2013/09/05/2013-21570/airworthiness-directives-pacific-scientific-aviation-services-pacific-scientific-seat-restraint)
- Sep 24, 2020: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period., FR document 2020-20624, comments due Nov 9, 2020 (https://www.federalregister.gov/documents/2020/09/24/2020-20624/airworthiness-directives-pacific-scientific-company-seat-restraint-system-rotary-buckle-assemblies)

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