# Proposed AD FAA-2007-27974: Diamond Aircraft Industries GmbH Model DA 40 and DA 40F Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Diamond
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 17, 2007, 72 FR 27768
- Comments due: June 18, 2007
- Docket: FAA-2007-27974 (https://www.regulations.gov/docket/FAA-2007-27974, where comments are filed)
- Project: 2007-CE-040-AD
- FR document: E7-9495
- Official PDF: https://openairdocs.org/files/sha256/35/c1/35c1cde5e41fb79f64ce801d9115610a2bc13eccaa6f159b160404e9ae2e1b29 (from https://www.govinfo.gov/content/pkg/FR-2007-05-17/pdf/E7-9495.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/05/17/E7-9495/airworthiness-directives-diamond-aircraft-industries-gmbh-model-da-40-and-da-40f-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EB6BA8228F144697862572DE005AE795.0001
- Page: https://openairdocs.org/proposed/FAA-2007-27974

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. 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:

A nose landing gear leg failed in area of the nose gear leg pivot axle. This airplane was mostly operated on grass runways and training operations. This failure was based on a fatigue crack developed in the pivot axle. Material inspections figured out that this cracks may also develop on other serial No. pending the type of operation.

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- May 17, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-9495, comments due Jun 18, 2007 (https://www.federalregister.gov/documents/2007/05/17/E7-9495/airworthiness-directives-diamond-aircraft-industries-gmbh-model-da-40-and-da-40f-airplanes)

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