# Airworthiness Directives; deHavilland Inc. Models DHC-2 Mk. I and DHC-2 Mk. II Airplanes and Bombardier Inc. Model (Otter) DHC-3 Airplanes
> **Rule** · Final rule. · Published 2004-10-21 · Effective 2004-12-06 · 69 FR 61758
## Document
- **Document number:** 04-23365
- **Category:** airworthiness
- **Manufacturer:** deHavilland Inc. Models DHC-2 Mk. I and DHC-2 Mk. II
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 61758
- **Publication date:** 2004-10-21
- **Effective date:** 2004-12-06
- **FAA docket:** Docket No. 2004-CE-02-AD
## Abstract

The FAA adopts a new airworthiness directive (AD) for all deHavilland Inc. Models DHC-2 Mk. I and DHC-2 Mk. II airplanes and for all Bombardier Inc. Model (Otter) DHC-3 airplanes powered by radial engines. This AD requires you to visually inspect the firewall connector plugs for proper lockwire security and replace or modify as appropriate. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Canada. We are issuing this AD to prevent loss of ignition systems during flight caused by improper lockwire security, which could result in engine failure. This failure could lead to a forced landing of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/10/21/04-23365/airworthiness-directives-dehavilland-inc-models-dhc-2-mk-i-and-dhc-2-mk-ii-airplanes-and-bombardier)
---
*AI Analytics · CC0 1.0*