# Proposed AD FAA-2014-0485: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2015-12-03
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 29, 2014, 79 FR 43981
- Comments due: September 12, 2014
- Became: [AD 2015-12-03](https://openairdocs.org/ad/2015-12-03)
- Docket: FAA-2014-0485 (https://www.regulations.gov/docket/FAA-2014-0485, where comments are filed)
- Project: 2014-NM-093-AD
- FR document: 2014-17780
- Official PDF: https://openairdocs.org/files/sha256/e3/d0/e3d07b363279535140e682a95c7e6c3fd76b7103a14cc165898c593708ec4a16 (from https://www.govinfo.gov/content/pkg/FR-2014-07-29/pdf/2014-17780.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/07/29/2014-17780/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5C172E4BBD1ACC7686257D240045D293.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0485

## Summary

We propose to supersede Airworthiness Directive (AD) 2007-13- 05, which applies to all The Boeing Company Model 777 airplanes. AD 2007-13-05 currently requires repetitive measurements of the freeplay of the right and left elevators, rudder, and rudder tab, and related investigative and corrective actions if necessary. Since we issued AD 2007-13-05, the manufacturer determined that the procedure for the rudder freeplay inspection does not properly detect excessive freeplay in the rudder control load loop. This proposed AD would require repetitive freeplay inspections and lubrication of the right and left elevators, rudder, and rudder tab; and related investigative and corrective actions if necessary. We are proposing this AD to detect and correct flutter, which can cause damage to the control surface structure and consequent loss of control of the airplane.

## Notices in this docket

- Jul 29, 2014: Notice of proposed rulemaking (NPRM). (first notice), FR document 2014-17780, comments due Sep 12, 2014 (https://www.federalregister.gov/documents/2014/07/29/2014-17780/airworthiness-directives-the-boeing-company-airplanes)

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