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Airworthiness Directive

AD 2003-04-14 68 FR 9520 Active

Federal Aviation Administration · 14 CFR part 39

Requires replacing the hydraulic solenoid tee fitting (tee fitting) and tubes.

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FR document
03-4476
Amendment
39-13063
Published
2003-02-28
Effective
2003-04-04
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/2003-04-14 · 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

2003-04-14

FR doc 03-4476 · 68 FR 9520

AD 2003-04-14Published 2003-02-28Effective 2003-04-04

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 replacing the hydraulic solenoid tee fitting (tee fitting) and tubes.

Full official abstract

This amendment adopts a new airworthiness directive (AD) for the specified Bell model helicopters that requires replacing the hydraulic solenoid tee fitting (tee fitting) and tubes. This amendment is prompted by the manufacturer's discovery that tee fittings may be installed improperly and restrict hydraulic fluid flow. The actions specified by this AD are intended to prevent restricted flow of hydraulic fluid to the flight control hydraulic actuators resulting in loss of hydraulic control, excessive stiffness in the flight controls, and a subsequent forced landing of the helicopter.

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All Bell 427 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index