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Airworthiness Directive

AD 2021-09-04 86 FR 21637 Superseded

Federal Aviation Administration · 14 CFR part 39

Requires replacing a certain oil pump as well as the oil filter and engine oil.

Superseded by AD 2021-24-10Federal Register (opens in a new tab)

FR document
2021-08558
Amendment
39-21517
Published
2021-04-23
Effective
2021-05-10
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2021-09-04 · 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.

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AD

2021-09-04

FR doc 2021-08558 · 86 FR 21637

AD 2021-09-04Published 2021-04-23Effective 2021-05-10

Superseded by 2021-24-10

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 replacing a certain oil pump as well as the oil filter and engine oil.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for all Austro Engine GmbH E4 and E4P model diesel piston engines. This AD was prompted by reports of an oil pump blockage on E4 model diesel piston engines. This AD requires replacing a certain oil pump as well as the oil filter and engine oil. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for Austro Engine E4

  1. AD 2025-02-12 Airworthiness Directives; Austro Engine GmbH Engines Effective 2025-04-01
  2. AD 2024-19-10 Airworthiness Directives; Austro Engine GmbH Engines Effective 2024-10-09
  3. AD 2024-05-01 Airworthiness Directives; Austro Engine GmbH Engines Effective 2024-03-11
  4. AD 2023-20-03 Airworthiness Directives; Austro Engine GmbH Engines Effective 2023-12-11
  5. AD 2022-03-03 Airworthiness Directives; Austro Engine GmbH Engines Effective 2022-02-14

All Austro Engine E4 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2021-09-04 (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