# Airworthiness Directives; Bombardier Model DHC-8-311 Airplanes
> **Rule** · Final rule. · Published 2004-09-07 · Effective 2004-10-12 · 69 FR 53999
## Document
- **Document number:** 04-20204
- **Category:** airworthiness
- **Manufacturer:** Bombardier Model DHC-8-311
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 53999
- **Publication date:** 2004-09-07
- **Effective date:** 2004-10-12
- **FAA docket:** Docket No. FAA-2004-18563
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Model DHC-8-311 airplanes. This AD requires reviewing the airplane maintenance records to determine if you did the most recent bonding integrity inspection according to a certain revision of the Maintenance Program Support Manual (PSM), and doing related investigative and corrective actions if necessary. This AD is prompted by the discovery that a certain revision of the PSM omits several fuselage skin panels from a list of skin panels that must be inspected. We are issuing this AD to prevent disbonding of the subject skin panels, which could reduce the load-carrying capacity of the skin panels and result in reduced structural integrity of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/09/07/04-20204/airworthiness-directives-bombardier-model-dhc-8-311-airplanes)
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