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Airworthiness Directive

AD 2021-16-12 86 FR 50237 Active

Federal Aviation Administration · 14 CFR part 39

Requires replacing a certain part- numbered relay panel assembly.

Federal Register (opens in a new tab)FAA DRS (opens in a new tab)

FR document
2021-19251
Amendment
39-21674
Published
2021-09-08
Effective
2021-10-13
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/2021-16-12 · 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

2021-16-12

FR doc 2021-19251 · 86 FR 50237

AD 2021-16-12Published 2021-09-08Effective 2021-10-13

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 a certain part- numbered relay panel assembly.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited Model 505 helicopters. This AD was prompted by three occurrences of metallic debris in the engine oil lubrication system causing the 12 volts direct current (VDC) reference voltage to be shorted to ground and loss of important flight information to the pilot. This AD requires replacing a certain part- numbered relay panel assembly. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for Bell 505 Jet Ranger X

  1. AD 2026-18-10 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2026-10-22
  2. AD 2026-16-02 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2026-09-10
  3. AD 2026-15-06 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2026-09-03
  4. AD 2026-05-51 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2026-04-16
  5. AD 2025-22-03 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2025-11-20

All Bell 505 Jet Ranger X 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