AD 97-04-01

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 737 Series Airplanes

AD Number
97-04-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
96-NM-153-AD
FR Citation
(Federal Register: February 14, 1997 (Volume 62, Number 31))

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company 737-100 Series Airworthiness Directives; Boeing Model 737 Series Airplanes
aircraft The Boeing Company 737-200 Series Airworthiness Directives; Boeing Model 737 Series Airplanes
aircraft The Boeing Company 737-200C Series Airworthiness Directives; Boeing Model 737 Series Airplanes
aircraft The Boeing Company 737-300 Series Airworthiness Directives; Boeing Model 737 Series Airplanes
aircraft The Boeing Company 737-400 Series Airworthiness Directives; Boeing Model 737 Series Airplanes
aircraft The Boeing Company 737-500 Series Airworthiness Directives; Boeing Model 737 Series Airplanes
aircraft The Boeing Company 737-600 Series Airworthiness Directives; Boeing Model 737 Series Airplanes
aircraft The Boeing Company 737-700 Series Airworthiness Directives; Boeing Model 737 Series Airplanes
aircraft The Boeing Company 737-800 Series Airworthiness Directives; Boeing Model 737 Series Airplanes

Unsafe Condition

Fracturing of the springs in the aileron centering units could cause jamming of the aileron control system during flight, resulting in reduced lateral control of the airplane.

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Required Actions

Modify the aileron centering spring and trim mechanism as specified in the referenced service bulletin. Ensure the correct spring is installed to prevent binding caused by fractured springs lodging in a centering cam hole.

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Compliance Time

within 18 months

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Affected Aircraft

Boeing Model 737 series airplanes including 737-100, 737-200, 737-200C, 737-300, 737-400, and 737-500 Series

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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for The Boeing Company 737-100 Series

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2008-10-09 R1

final rule

Airworthiness Directives; The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 Series Airplanes

Unsafe Condition: FAA-approved maintenance program

Effective: Jan 15, 2010 Category: aircraft

2004-03-34 R1

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Airworthiness Directives; Boeing Model 737-100, -200, -200C, - 300, -400, and -500 Series Airplanes

Unsafe Condition: Door mounted escape slides

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