# Airworthiness Directives; Boeing Model 777-200 and 777-300 Series Airplanes
> **Rule** · Final rule. · Published 2003-12-18 · Effective 2004-01-22 · 68 FR 70432
## Document
- **Document number:** 03-31061
- **Category:** airworthiness
- **Manufacturer:** Boeing Model 777-200 and 777-300 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 68 FR 70432
- **Publication date:** 2003-12-18
- **Effective date:** 2004-01-22
- **FAA docket:** Docket No. 2001-NM-295-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 777-200 and 777-300 series airplanes, that requires application of high-temperature sealant in designated areas of the strut aft dry bay. The actions specified by this AD are intended to prevent leakage of hydraulic fluid into the strut aft dry bay, where high temperatures associated with the adjacent primary exhaust nozzle may ignite the fluid, resulting in an uncontrolled fire in the strut aft dry bay. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/12/18/03-31061/airworthiness-directives-boeing-model-777-200-and-777-300-series-airplanes)
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