# Proposed AD FAA-2018-0422: Pacific Aerospace Limited Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Withdrawn
- Products: Pacific Aerospace
- Product type: Aircraft
- Action: Proposed rule; withdrawal.
- Published: June 28, 2021, 86 FR 33915
- Comments due: June 17, 2018
- Docket: FAA-2018-0422 (https://www.regulations.gov/docket/FAA-2018-0422, where comments are filed)
- FR document: 2021-13482
- Official PDF: https://openairdocs.org/files/sha256/ae/6d/ae6da00be3a96ee9c0d004c66a82f4b855fd165c9faa9ac9fbd0a850b5ac53e1 (from https://www.govinfo.gov/content/pkg/FR-2021-06-28/pdf/2021-13482.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/06/28/2021-13482/airworthiness-directives-pacific-aerospace-limited-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/062308FB60198D628625870200561590.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0422

## Summary

The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to supersede airworthiness directive (AD) AD 2015-23-03 for Pacific Aerospace Limited Model 750XL airplanes. The NPRM was prompted by mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as fatigue cracks on the fin forward pickup plates. Since issuance of the NPRM, the FAA has determined that the actions required by AD 2015-23-03 address the unsafe condition. Accordingly, the NPRM is withdrawn.

## Notices in this docket

- Jun 18, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-12886, comments due Aug 2, 2018 (https://www.federalregister.gov/documents/2018/06/18/2018-12886/airworthiness-directives-pacific-aerospace-limited-airplanes)
- Jun 28, 2021: Proposed rule; withdrawal., FR document 2021-13482, comments due Jun 17, 2018 (https://www.federalregister.gov/documents/2021/06/28/2021-13482/airworthiness-directives-pacific-aerospace-limited-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.