# Proposed AD FAA-2013-0398: Eurocopter Deutschland GmbH Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-18-05
- Products: Eurocopter Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 8, 2013, 78 FR 26715
- Comments due: July 8, 2013
- Became: [AD 2013-18-05](https://openairdocs.org/ad/2013-18-05)
- Docket: FAA-2013-0398 (https://www.regulations.gov/docket/FAA-2013-0398, where comments are filed)
- Project: 2011-SW-065-AD
- FR document: 2013-10911
- Official PDF: https://openairdocs.org/files/sha256/98/ab/98abd672f515e775f889b1c77bd16390ae28937bda0e2467221fd5464f219168 (from https://www.govinfo.gov/content/pkg/FR-2013-05-08/pdf/2013-10911.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/05/08/2013-10911/airworthiness-directives-eurocopter-deutschland-gmbh-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/252AE8A915EAB69A86257B650045DB5D.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0398

## Summary

We propose to adopt a new airworthiness directive (AD) for Eurocopter Deutschland GmbH (ECD) Model EC135P1, EC135P2, EC135P2+, EC135T1, EC135T2, and EC135T2+ helicopters with certain fire extinguishing systems installed. This proposed AD would require modifying the fire extinguishing system injection tubes. This proposed AD is prompted by a report that the injection tubes are deforming due to heat. The proposed actions are intended to prevent deformation of the fire extinguishing system injection tubes during a fire, which could result in impaired distribution of the fire extinguishing agent, failure of the fire extinguishing system to contain an engine fire, and subsequent loss of control of the helicopter.

## Notices in this docket

- May 8, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-10911, comments due Jul 8, 2013 (https://www.federalregister.gov/documents/2013/05/08/2013-10911/airworthiness-directives-eurocopter-deutschland-gmbh-helicopters)

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