AD 2010-16-05
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, 747-400, 747-400D, 747-400F, 747SR, and 747SP Series Airplanes |
Unsafe Condition
Low-pressure flex-hoses of the crew oxygen system burned through due to inadvertent electrical current from a short circuit in the audio select panel, causing oxygen system leakage and smoke or fire.
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Required Actions
Inspect low-pressure flex-hoses of the crew oxygen system installed under the oxygen mask stowage boxes in the flight deck to verify part numbers. Replace any hose with a part number listed in Table 1 with a new or serviceable part before further flight. No further action is required for hoses not listed in Table 1.
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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, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes, certificated in any category; line numbers 1 through 1229 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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