# Airworthiness Directives; Boeing Model 767-200 and -300 Series Airplanes
> **Rule** · Final rule. · Published 2009-09-29 · Effective 2009-11-03 · 74 FR 49798
## Document
- **Document number:** E9-22668
- **Category:** airworthiness
- **Manufacturer:** Boeing Model 767-200 and -300 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 74 FR 49798
- **Publication date:** 2009-09-29
- **Effective date:** 2009-11-03
- **FAA docket:** Docket No. FAA-2008-0682
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 767-200 and -300 series airplanes, that requires replacing certain door-mounted escape slides and slide- raft assemblies with new slide-raft assemblies. This AD also requires the following actions, as applicable: replacing certain escape system latches with new latches; modifying or replacing certain counterbalance assemblies with new counterbalance assemblies; and adjusting the door counterbalance system. The actions specified by this AD are intended to prevent the escape slides and slide-rafts of the forward and mid-cabin entry and service doors from being too steep for evacuation in the event that the airplane rotates onto the aft fuselage into the extreme tip-back condition. In the extreme tip-back condition, the forward and mid-cabin exits could result in steeper sliding angles, which could cause injury to passengers and crewmembers during an emergency evacuation. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/09/29/E9-22668/airworthiness-directives-boeing-model-767-200-and--300-series-airplanes)
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