AD 97-05-09

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 737 Series Airplanes

AD Number
97-05-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
96-NM-146-AD
FR Citation
(Federal Register: March 05, 1997 (Volume 62, Number 43))

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

Fragments from a deteriorated flow restrictor filter screen in the aileron or elevator power control units (PCU's) could become lodged in the PCU, resulting in reduced roll and/or pitch rate control and increased pilot workload.

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

Required Actions

Replace the flow restrictors of the aileron and elevator power control units (PCU's) with new flow restrictors. Disallow installation of the affected flow restrictors as of the AD's effective date.

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

Compliance Time

within five years or 15,000 flight hours (whichever occurs first)

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

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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2004-03-34 R1

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