# Airworthiness Directives; Bombardier, Inc. Airplanes
> **Rule** · Final rule. · Published 2013-10-31 · Effective 2013-12-05 · 78 FR 65176
## Document
- **Document number:** 2013-25305
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 78 FR 65176
- **Publication date:** 2013-10-31
- **Effective date:** 2013-12-05
- **FAA docket:** Docket No. FAA-2012-1311
## Abstract

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-102, -103, and -106 airplanes; and Model DHC-8-200, -300, and -400 series airplanes. This AD was prompted by reports of excessive wear found in the clevis (bolt) hole where the rod assembly attaches to the rudder/brake pedal bellcrank, due to prolonged fretting. This AD requires measuring the bellcrank clevis holes, inspecting for cracking of the bellcrank, and re-working the clevis holes with steel bushings, or replacing the bellcrank. We are issuing this AD to detect and correct a worn or cracked clevis hole, which could cause failure of the bellcrank on one side, with subsequent asymmetric braking and consequent runway excursion.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/10/31/2013-25305/airworthiness-directives-bombardier-inc-airplanes)
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