AD 2018-20-22
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company | Airworthiness Directives; General Electric Company Turbofan Engines |
Unsafe Condition
The unapproved repairs reduced the material capability of these cases, which requires their removal prior to reaching their published Airworthiness Limitation Section life limit. This condition, if not addressed, could result in failure of the combustion case, engine fire, and damage to the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove the affected combustion cases from service and their replacement with a part eligible for installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 cycles after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
General Electric Company (GE) GE90-110B1, GE90-113B, and GE90-115B turbofan engines with a certain case combustor assembly (combustion case) installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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