AD 2011-15-09

final rule
Data completeness: 70%

Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

AD Number
2011-15-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2011-0718
FR Citation
76 FR 42033

Applicability

TypeManufacturerModelDetails
aircraft Bombardier Various Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes
aircraft Aviat Various Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

Unsafe Condition

Failure of the main landing gear (MLG) alternate extension system (AES) cam mechanism on one side can lead to an unsafe asymmetrical landing configuration, potentially resulting in loss of control during landing.

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

Required Actions

Inspect the MLG AES cam mechanism for proper operation using the revised inspection procedure. Rectify (repair or replace) the cam assembly as necessary.

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

Compliance Time

Within 100 flight hours after the effective date of the AD.

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

Affected Aircraft

Bombardier, Inc. Model DHC-8-400 Series airplanes with the main landing gear alternate extension system (AES) cam mechanism installed.

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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