# Proposed AD FAA-2020-1167: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-08-10
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 15, 2021, 86 FR 3885
- Comments due: March 1, 2021
- Became: [AD 2021-08-10](https://openairdocs.org/ad/2021-08-10)
- Docket: FAA-2020-1167 (https://www.regulations.gov/docket/FAA-2020-1167, where comments are filed)
- Project: AD-2020-01007-T
- FR document: 2020-29227
- Official PDF: https://openairdocs.org/files/sha256/99/92/9992bf9024e848f1866507e777d9070377683d0419e7b6ca87aaa96746ea23ee (from https://www.govinfo.gov/content/pkg/FR-2021-01-15/pdf/2020-29227.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/01/15/2020-29227/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E6683039B355B8188625865E006C791D.0001
- Page: https://openairdocs.org/proposed/FAA-2020-1167

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model DC-10-10, DC-10-10F, DC-10-15, DC-10- 30, DC-10-30F (KC-10A and KDC-10), DC-10-40 and DC-10-40F airplanes; and Model MD-10-10F and MD-10-30F airplanes. This proposed AD was prompted by a report that an operator found a crack in the upper flange of the pylon aft bulkhead bracket. This proposed AD would require a general visual inspection of the left and right wing pylon at the aft bulkhead bracket for any lockbolt and collar; repetitive surface and open hole eddy current high frequency (ETHF) inspections of the left and right wing pylon at the aft bulkhead bracket for any cracking; and applicable on-condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jan 15, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-29227, comments due Mar 1, 2021 (https://www.federalregister.gov/documents/2021/01/15/2020-29227/airworthiness-directives-the-boeing-company-airplanes)

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