# Proposed AD FAA-2020-0696: Airbus Helicopters Deutschland GmbH (Type Certificate Previously Held by Eurocopter Deutschland GmbH and Eurocopter Canada Ltd.) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-07-08
- Products: Airbus Helicopters Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 17, 2020, 85 FR 43506
- Comments due: August 31, 2020
- Became: [AD 2021-07-08](https://openairdocs.org/ad/2021-07-08)
- Docket: FAA-2020-0696 (https://www.regulations.gov/docket/FAA-2020-0696, where comments are filed)
- FR document: 2020-15352
- Official PDF: https://openairdocs.org/files/sha256/bb/14/bb14d763490a02413e1f98a27dfad160d52b473c6659bf6a5d705f59a87b9dc5 (from https://www.govinfo.gov/content/pkg/FR-2020-07-17/pdf/2020-15352.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/07/17/2020-15352/airworthiness-directives-airbus-helicopters-deutschland-gmbh-type-certificate-previously-held-by
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/124301F159412786862585A80048F94A.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0696

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 97- 26-02 for Eurocopter Deutschland GmbH Model BO-105A, BO-105C, BO-105S, BO-105LS A-1, and BO-105LS A-3 helicopters; and Eurocopter Canada Ltd. Model BO-105LS A-3 helicopters. AD 97-26-02 requires a repetitive visual inspection for cracks in the ribbed area of the main rotor (M/R) mast flange (flange), and depending on the outcome, replacing the M/R mast. Since the FAA issued AD 97-26-02, it has been determined that a certain reinforced M/R mast is not affected by this unsafe condition. This proposed AD would retain the requirements of AD 97-26-02 and remove the reinforced M/R mast from the applicability. The actions of this proposed AD are intended to address an unsafe condition on these products.

## Notices in this docket

- Jul 17, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-15352, comments due Aug 31, 2020 (https://www.federalregister.gov/documents/2020/07/17/2020-15352/airworthiness-directives-airbus-helicopters-deutschland-gmbh-type-certificate-previously-held-by)

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