AD 2009-10-12

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747 Airplanes

AD Number
2009-10-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2009-0450
FR Citation
74 FR 23619

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747 Airworthiness Directives; Boeing Model 747 Airplanes

Unsafe Condition

30- to 60-second delays in the inflation of escape slides/rafts, which could result in delayed or failed deployment during emergency evacuation.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Modify the inflation systems of the upper deck escape slides; single-piece off-wing escape ramps/slides; two-piece off-wing escape slides; and door 1, 2, 4, and 5 escape slides/rafts, as applicable.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 36 months of the effective date of this AD.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Boeing Model 747 airplanes, including specific series and groups as identified in Boeing Service Bulletins 747-25-3279 and 747-25-3232, with the addition of one airplane (RG162).

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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