AD 2010-24-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company Model 747-100 | Airworthiness Directives; The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP Series Airplanes |
Unsafe Condition
Low pressure condition in the left and right override/jettison pumps of the center wing tanks may not be adequately indicated to the flight crew.
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Required Actions
Add two new indicator lights on the P10 panel or a mounting bracket and two new indicator lights on the Autopilot Flight Director panel, depending on panel configuration. Replace the left and right override/jettison switches on the M154 fuel control module with improved switches and perform associated wiring changes. Revise the maintenance program to incorporate airworthiness limitation No. 28-AWL-22. Revise the airplane flight manual to advise the flight crew on actions if the pump low pressure light does not illuminate when the pump is selected off.
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Compliance Time
Within 36 months after the effective date of this AD
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Affected Aircraft
The Boeing Company Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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