AD 97-08-05

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes

AD Number
97-08-05
Status
final_rule
Effective Date
Product Category
aircraft
Docket
96-NM-239-AD
FR Citation
(Federal Register: April 10, 1997 (Volume 62, Number 69))

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company 747-100 Series Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes
aircraft The Boeing Company 747-100B Series Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes
aircraft The Boeing Company 747-100B SUD Series Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes
aircraft The Boeing Company 747-200B Series Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes
aircraft The Boeing Company 747-200C Series Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes
aircraft The Boeing Company 747-200F Series Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes
aircraft The Boeing Company 747-300 Series Airworthiness Directives; Boeing Model 747-100, -200, and -300 Series Airplanes

Unsafe Condition

Internal failure of switches S4, S5, S7, or S8 in the cabin attendant's panel at door 4 right and equivalent switches at door 2 right could short circuit, causing fire and smoke aboard the airplane.

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Required Actions

Replace switches S4 and/or S5 at door 4 right, and equivalent switches S7 and S8 at door 2 right, with new improved switches as specified in Boeing Alert Service Bulletin 747-33A2252 and Notice of Status Change 747-33A2252 NSC 01.

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Compliance Time

Required as indicated, unless accomplished previously.

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Affected Aircraft

Boeing Model 747-100, -200, and -300 series airplanes listed in Boeing Alert Service Bulletin 747-33A2252, as revised by Notice of Status Change 747-33A2252 NSC 01.

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

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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