# Proposed AD FAA-2011-0816: Costruzioni Aeronautiche Tecnam srl Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-18-04
- Products: Costruzioni Aeronautiche Tecnam
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (NPRM); extension of the comment period.
- Published: June 13, 2012, 77 FR 35304
- Comments due: July 30, 2012
- Became: [AD 2012-18-04](https://openairdocs.org/ad/2012-18-04)
- Docket: FAA-2011-0816 (https://www.regulations.gov/docket/FAA-2011-0816, where comments are filed)
- Project: 2011-CE-022-AD
- FR document: 2012-14368
- Official PDF: https://openairdocs.org/files/sha256/ab/ab/ababb5fe4047892dbee92c6b904c745cf6ad659cd869828df798e7b010e102d9 (from https://www.govinfo.gov/content/pkg/FR-2012-06-13/pdf/2012-14368.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/06/13/2012-14368/airworthiness-directives-costruzioni-aeronautiche-tecnam-srl-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/482126B579031F1786257A1C004865F6.0001
- Page: https://openairdocs.org/proposed/FAA-2011-0816

## Summary

We are revising an earlier NPRM for Costruzioni Aeronautiche Tecnam srl Model P2006T airplanes. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as cracking, bulging, deformation, or oil leakage in the lower lid of the landing gear emergency accumulator, which could result in decreasing the airplane's structural integrity and jeopardizing the landing gear emergency extension in case of system failure in normal mode. We are issuing this proposed AD to require actions to address the unsafe condition on these products.

## Notices in this docket

- Aug 8, 2011: Notice of proposed rulemaking (NPRM). (first notice), FR document 2011-20037, comments due Sep 22, 2011 (https://www.federalregister.gov/documents/2011/08/08/2011-20037/airworthiness-directives-costruzioni-aeronautiche-tecnam-srl-model-p2006t-airplanes)
- Jun 13, 2012: Supplemental notice of proposed rulemaking (NPRM); extension of the comment period., FR document 2012-14368, comments due Jul 30, 2012 (https://www.federalregister.gov/documents/2012/06/13/2012-14368/airworthiness-directives-costruzioni-aeronautiche-tecnam-srl-airplanes)

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