# Airworthiness Directives; Eurocopter France Model EC 155B Helicopters
> **Rule** · Final rule; request for comments. · Published 2002-09-24 · Effective 2002-10-09 · 67 FR 59777
## Document
- **Document number:** 02-24181
- **Category:** airworthiness
- **Manufacturer:** Eurocopter France Model EC 155B
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 67 FR 59777
- **Publication date:** 2002-09-24
- **Effective date:** 2002-10-09
- **FAA docket:** Docket No. 2002-SW-11-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model EC 155B helicopters with certain SMD45H multi-functional displays. This action requires replacing the "AC" SMD45H multi-functional display interconnection board (interconnection board) of the affected displays with a "BC" interconnection board. This amendment is prompted by an incident of smoke in a cockpit caused by overheating of the interconnection board. The actions specified in this AD are intended to prevent an electrical discontinuity in the grounding plane inside the SMD45H multi-functional display, which can result in overheating of the interconnection board, smoke in the cockpit, and subsequent loss of control of the helicopter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2002/09/24/02-24181/airworthiness-directives-eurocopter-france-model-ec-155b-helicopters)
---
*AI Analytics · CC0 1.0*