# Airworthiness Directives; Dornier Model 328-100 Series Airplanes
> **Rule** · Final rule. · Published 1999-04-12 · Effective 1999-05-17 · 64 FR 17512
## Document
- **Document number:** 99-8536
- **Category:** airworthiness
- **Manufacturer:** Dornier Model 328-100 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 64 FR 17512
- **Publication date:** 1999-04-12
- **Effective date:** 1999-05-17
- **FAA docket:** Docket No. 98-NM-157-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Dornier Model 328-100 series airplanes, that requires repetitive lubrication of the engine control push-pull cables, and installation of heating tubes on the control cables in the cockpit area and in the left-hand and right-hand engine balconies, which terminates the repetitive lubrication requirement. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to prevent ice from building up on the engine control push- pull cables, which could result in friction or jamming of the engine controls, and consequent reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/04/12/99-8536/airworthiness-directives-dornier-model-328-100-series-airplanes)
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