AD 2001-12-11

final rule
Data completeness: 70%

Airworthiness Directives; Bombardier Model DHC-7 Series Airplanes

AD Number
2001-12-11
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 2000-NM-272-AD
FR Citation
66 FR 32895

Applicability

TypeManufacturerModelDetails
aircraft Bombardier DHC-7 Airworthiness Directives; Bombardier Model DHC-7 Series Airplanes

Unsafe Condition

Blockage of pressure hoses to the ground spoiler actuators, leading to uncommanded deployment of the ground spoilers, resulting in reduced controllability of the airplane.

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

Required Actions

Modify the pressure hoses on each ground spoiler actuator in accordance with Bombardier Service Bulletin 7-27-90, dated September 3, 1999.

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

Compliance Time

Within 12 months after the effective date of this AD.

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

Affected Aircraft

Bombardier Model DHC-7 series airplanes, manufacturer's serial numbers 003 through 113 inclusive, certificated in any category.

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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View Official Source ↗ Find More ADs for Bombardier DHC-7

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