# Proposed AD FAA-2024-2142: Piper Aircraft, Inc. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Piper
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM); extension of comment period.
- Published: November 7, 2024, 89 FR 88173
- Comments due: December 9, 2024
- Docket: FAA-2024-2142 (https://www.regulations.gov/docket/FAA-2024-2142, where comments are filed)
- Project: AD-2024-00033-A
- FR document: 2024-25883
- Official PDF: https://openairdocs.org/files/sha256/4f/be/4fbe05eb734cb8df7bcfc20ec561c2d54acd995eb87c0a72f957e8b59099ec81 (from https://www.govinfo.gov/content/pkg/FR-2024-11-07/pdf/2024-25883.pdf)
- Federal Register: https://www.federalregister.gov/documents/2024/11/07/2024-25883/airworthiness-directives-piper-aircraft-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2024-25883-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2024-2142

## Summary

This document announces an extension of the comment period for the referenced NPRM, which proposed to supersede Airworthiness Directive (AD) 2020-26-16, which applies to certain Piper Aircraft, Inc. (Piper) Model PA-28-151, PA-28-161, PA-28-181, PA-28-235, PA-28R- 180, PA-28R-200, PA-28R-201, PA-28R-201T, PA-28RT-201, PA-28RT-201T, PA-32-260, PA-32-300, PA-32R-300, PA-32RT-300, and PA-32RT-300T airplanes. This NPRM invited comments concerning the proposed requirements for calculating the calculated service hours (CSH) to determine the times for required actions for each main wing spar; repetitively inspecting the lower main wing spar bolt holes for crack(s) and non-crack damage and taking corrective actions as needed; and replacing or modifying main wing spars at a specified time. This NPRM also invited comments concerning the proposal to revise the applicability by removing certain airplanes and adding a new airplane model. This extension of the comment period is necessary to provide all interested persons an opportunity to present their views on the proposed requirements of this NPRM.

## Notices in this docket

- Sep 23, 2024: Notice of proposed rulemaking (NPRM). (first notice), FR document 2024-21652, comments due Nov 7, 2024 (https://www.federalregister.gov/documents/2024/09/23/2024-21652/airworthiness-directives-piper-aircraft-inc-airplanes)
- Nov 7, 2024: Notice of proposed rulemaking (NPRM); extension of comment period., FR document 2024-25883, comments due Dec 9, 2024 (https://www.federalregister.gov/documents/2024/11/07/2024-25883/airworthiness-directives-piper-aircraft-inc-airplanes)

---
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.