# Proposed AD FAA-2018-0273: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-18-03
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 13, 2018, 83 FR 16010
- Comments due: May 29, 2018
- Became: [AD 2018-18-03](https://openairdocs.org/ad/2018-18-03)
- Docket: FAA-2018-0273 (https://www.regulations.gov/docket/FAA-2018-0273, where comments are filed)
- FR document: 2018-07632
- Official PDF: https://openairdocs.org/files/sha256/e9/76/e97601a1b3737f385f67a47facb0dd9909964bb57cd6088014b8d598ffa0e799 (from https://www.govinfo.gov/content/pkg/FR-2018-04-13/pdf/2018-07632.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/04/13/2018-07632/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1486C71696908B7D8625826E00539903.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0273

## Summary

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This proposed AD was prompted by several reports of cracks in a certain floor beam lower chord at stop fitting Number 1 of the forward airstair door cutout. This proposed AD would require repetitive inspections for any cracks and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 13, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-07632, comments due May 29, 2018 (https://www.federalregister.gov/documents/2018/04/13/2018-07632/airworthiness-directives-the-boeing-company-airplanes)

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