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Airworthiness Directive

AD 2012-08-11 77 FR 24351 Active

Federal Aviation Administration · 14 CFR part 39

FR document
2012-9472
Amendment
39-17028
Published
2012-04-24
Effective
2012-05-29
Models covered
1
Last live check
2026-10-03

Printed from https://aircraftdirectives.com/ad/2012-08-11 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

2012-08-11

FR doc 2012-9472 · 77 FR 24351

AD 2012-08-11Published 2012-04-24Effective 2012-05-29

Superseded by 2017-05-11

Supersedence is read from the Federal Register text of the newer AD — the FAA publishes no structured field for it — and names only ADs held in our index.

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires a detailed inspection for defects and damage of the retract port flexible hose on the left and right MLG retraction actuator and replacement of the flexible hose if needed.

Full official abstract

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model DHC-8-400 series airplanes. This AD was prompted by test reports that showed that failure of a retract port flexible hose of a main landing gear (MLG) retraction actuator could cause excessive hydraulic fluid leakage. This AD requires a detailed inspection for defects and damage of the retract port flexible hose on the left and right MLG retraction actuator and replacement of the flexible hose if needed. We are issuing this AD to detect and correct defects and damage of the retract port flexible hose which could lead to an undamped extension of the MLG and could result in MLG structural failure, leading to an unsafe asymmetric landing configuration.

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All de Havilland DHC-8 Dash 8 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2012-08-11 (opens in a new tab)

Applies to 1 model in our index