AD 2011-21-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | General Electric | Company | Airworthiness Directives; General Electric Company Turboshaft Engines |
Unsafe Condition
Stress-corrosion cracking of the mounting flanges on the fuel filter differential pressure switch, part number TD028VF0H7Y5, due to bending stress and contaminants in the operating environment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform daily visual inspections of the fuel filter differential pressure switch for fuel leaks and excessive cracking of the switch mounting flanges. Install a collar kit over the fuel filter differential pressure switch as a terminating action to the daily inspections.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the compliance times specified in the AD, unless already done.
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Affected Aircraft
General Electric Company CT7-8A, CT7-8A1, CT7-8E, and CT7-8F5 turboshaft engines with fuel filter differential pressure switch, part number TD028VF0H7Y5 (part of fuel filter assembly, P/N 4110T53P06), installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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