AircraftDirectives
MembershipSign inCreate free account
Menu
Airworthiness Directive

AD 2015-04-04 80 FR 9594 Superseded

Federal Aviation Administration · 14 CFR part 39

Requires revising the Rotorcraft Flight Manual (RFM) and installing a placard in full view of the pilot to limit flight to visual flight rules (VFR) only and prohibit night operations.

Superseded by AD 2020-02-11Federal Register (opens in a new tab)

FR document
2015-03585
Amendment
39-18106
Published
2015-02-24
Effective
2015-03-11
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/2015-04-04 · 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.

Opens your browser's print dialog. Choose “Save as PDF” to export a file. Keyboard: Ctrl+P or Cmd+P.

AD

2015-04-04

FR doc 2015-03585 · 80 FR 9594

AD 2015-04-04Published 2015-02-24Effective 2015-03-11

Superseded by 2020-02-11

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 revising the Rotorcraft Flight Manual (RFM) and installing a placard in full view of the pilot to limit flight to visual flight rules (VFR) only and prohibit night operations.

Full official abstract

We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron Inc. (Bell) Model 412 and 412EP helicopters with certain static inverters (inverters) installed. This AD requires revising the Rotorcraft Flight Manual (RFM) and installing a placard in full view of the pilot to limit flight to visual flight rules (VFR) only and prohibit night operations. This AD is prompted by failures of certain inverters, most of which resulted in smoke in the cockpit. The actions specified by this AD are intended to restrict flight to VFR only and prohibit night operations to allow safe operation in the event of failure of an affected inverter. This failure would increase pilot workload during instrument flight rules (IFR) and could result in loss of certain pilot information displays and subsequent loss of control of the helicopter.

More directives for Bell 412

  1. AD 2024-16-19 Airworthiness Directives; Bell Textron Inc. Helicopters Effective 2024-11-08
  2. AD 2024-16-01 Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously... Effective 2024-09-04
  3. AD 2022-20-14 Airworthiness Directives; Bell Textron Inc., Helicopters and Various Res... Effective 2022-12-27
  4. AD 2022-22-12 Airworthiness Directives; Bell Textron Inc., Erickson 214 Holdings, LLC,... Effective 2022-11-22
  5. AD 2022-11-19 Airworthiness Directives; Bell Textron Inc. Helicopters Effective 2022-07-06

All Bell 412 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2015-04-04 (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