# Proposed AD FAA-2018-0112: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-18-13
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 21, 2018, 83 FR 7425
- Comments due: April 9, 2018
- Became: [AD 2018-18-13](https://openairdocs.org/ad/2018-18-13)
- Docket: FAA-2018-0112 (https://www.regulations.gov/docket/FAA-2018-0112, where comments are filed)
- FR document: 2018-03433
- Official PDF: https://openairdocs.org/files/sha256/81/b2/81b2f9c89f15f9c0f021a05339e5d172ddb59af87e315441b600fccf72763eba (from https://www.govinfo.gov/content/pkg/FR-2018-02-21/pdf/2018-03433.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/02/21/2018-03433/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B4B77E8F9C867C7D8625823D006B6673.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0112

## Summary

We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-100, -200, -200C, -300, -400, -500 series airplanes. This proposed AD was prompted by reports of cracking in certain flanges, and the adjacent web, of the wing outboard flap track at certain positions. This proposed AD would require an inspection to determine the part number of the wing outboard flap track assembly; repetitive inspections of each affected wing outboard flap track for discrepancies, and applicable on-condition actions; and repetitive overhaul of each wing outboard flap track. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Feb 21, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-03433, comments due Apr 9, 2018 (https://www.federalregister.gov/documents/2018/02/21/2018-03433/airworthiness-directives-the-boeing-company-airplanes)

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