AD 99-10-12

final rule
Data completeness: 70%

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

AD Number
99-10-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
99-NM-68-AD
FR Citation
(Federal Register: May 12, 1999 (Volume 64, Number 91))

Applicability

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

Unsafe Condition

Cracking of the main landing gear (MLG) actuator beam arm clevis due to corrosion pits, which could damage aileron and spoiler control cables and reduce airplane controllability.

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Required Actions

Conduct repetitive visual and ultrasonic inspections of the MLG actuator beam arm clevis to detect corrosion and cracking. Replace any actuator beam arm with a new one if corrosion or cracking is found. Comply with Boeing Alert Service Bulletin 737-32A1314 for inspections and replacement.

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Compliance Time

Within 4 years of the effective date (May 27, 1999), with subsequent inspections every 90 days.

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Affected Aircraft

All Boeing Model 737-100, -200, -300, -400, and -500 series airplanes, including in-production models.

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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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