AD 2020-04-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
uncommanded changes to the mode control panel (MCP) selected altitude; such uncommanded changes could result in incorrect spatial separation between airplanes, midair collision, or controlled flight into terrain.
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Required Actions
Replace the existing MCP part with an MCP having part number S241W001-262, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 777-22-0034, dated March 3, 2016. Install a later-approved part as defined in paragraph (g)(2) of this AD. Inspect/records check (new proposed action) (up to 28 airplanes).
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Compliance Time
Within 60 months after August 25, 2017
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Affected Aircraft
All The Boeing Company Model 777-200, -200LR, -300, -300ER, and 777F series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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