# Proposed AD FAA-2012-0145: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2014-14-04
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 22, 2012, 77 FR 10403
- Comments due: April 9, 2012
- Became: [AD 2014-14-04](https://openairdocs.org/ad/2014-14-04)
- Docket: FAA-2012-0145 (https://www.regulations.gov/docket/FAA-2012-0145, where comments are filed)
- Project: 2011-NM-066-AD
- FR document: 2012-4161
- Official PDF: https://openairdocs.org/files/sha256/15/5f/155f7f3ab5be414f2aa03fea867cc544725cd4ec12cf9d863acb54253168a930 (from https://www.govinfo.gov/content/pkg/FR-2012-02-22/pdf/2012-4161.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/02/22/2012-4161/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/50305B4D1BDAE2C6862579AC00512C4B.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0145

## Summary

We propose to supersede an existing airworthiness directive (AD) that applies to certain The Boeing Company Model 767 airplanes. The existing AD currently requires revising the Airworthiness Limitations Section of the maintenance planning data (MPD) document. Since we issued that AD, a re-evaluation of certain doors and flaps was done based on their fatigue-critical nature. This proposed AD would revise the maintenance program to incorporate an additional limitation, and would add airplanes to the applicability. We are proposing this AD to detect and correct fatigue cracking of the principal structural element (PSEs), which could adversely affect the structural integrity of the airplane.

## Notices in this docket

- Feb 22, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-4161, comments due Apr 9, 2012 (https://www.federalregister.gov/documents/2012/02/22/2012-4161/airworthiness-directives-the-boeing-company-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.