# Proposed AD 97-CE-81-AD: EXTRA Flugzeugbau GmbH Model EA-300 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-06-03
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 31, 1997, 62 FR 68239
- Comments due: January 27, 1998
- Became: [AD 98-06-03](https://openairdocs.org/ad/98-06-03)
- Docket: 97-CE-81-AD
- FR document: 97-34046
- Official PDF: https://openairdocs.org/files/sha256/61/db/61dba8050d4c0e0a1096b1c26cf40e213b4a3244fb3096499a979fafab7d6709 (from https://www.govinfo.gov/content/pkg/FR-1997-12-31/pdf/97-34046.pdf)
- Federal Register: https://www.federalregister.gov/documents/1997/12/31/97-34046/airworthiness-directives-extra-flugzeugbau-gmbh-model-ea-300-airplanes
- Page: https://openairdocs.org/proposed/97-CE-81-AD

## Summary

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain EXTRA Flugzeugbau GmbH (EXTRA) Model EA-300 airplanes. The proposed action would require removing the elevator mass balance and replacing it with a reinforced mass balance of improved design using new stop nuts. The proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by the proposed AD are intended to prevent damage and possible jamming of the airplane's control system, which, if not corrected, could cause loss of control of the airplane.

## Notices in this docket

- Dec 31, 1997: Notice of proposed rulemaking (NPRM). (first notice), FR document 97-34046, comments due Jan 27, 1998 (https://www.federalregister.gov/documents/1997/12/31/97-34046/airworthiness-directives-extra-flugzeugbau-gmbh-model-ea-300-airplanes)

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