AD 2001-24-06

final rule
Data completeness: 70%

Airworthiness Directives; Bombardier Model DHC-8-100, -200, and -300 Series Airplanes

AD Number
2001-24-06
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 2001-NM-129-AD
FR Citation
66 FR 59690

Applicability

TypeManufacturerModelDetails
aircraft Bombardier DHC-8-100 Airworthiness Directives; Bombardier Model DHC-8-100, -200, and -300 Series Airplanes

Unsafe Condition

Failure of the existing pressure regulating valve in the oil pump of the propeller control unit (PCU) could lead to oil leaks, fracture of the pump, inability to maintain engine oil pressure, and inability to feather the propeller, with consequent reduced controllability of the aircraft.

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

Required Actions

Install a backup pressure regulating valve in the oil pump of the propeller control unit (PCU) on each engine, in accordance with Bombardier Service Bulletin 8-61-31.

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

Compliance Time

Within 24 months after the effective date of this AD or at the next scheduled shop visit, whichever occurs first.

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

Affected Aircraft

Bombardier Model DHC-8-100, -200, and -300 series airplanes, serial numbers 003 through 554 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-8-100

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