# Search: Delta Engineering

Airworthiness directives: 16 matches in release 2026-10-30. Page 1.

- [AD 2007-11-06](https://openairdocs.org/ad/2007-11-06.md): Constant delta pressure (delta P) diaphragm · Turbomeca Arrius 2F · Effective Jun 26, 2007
  > …**delta** pressure (**delta** P) diaphragm. We are issuing this AD to prevent an uncommanded **engine** in…
- [AD 2016-08-16](https://openairdocs.org/ad/2016-08-16.md): Constant delta-pressure (delta-P) diaphragm of the fuel metering valve · Turbomeca Arriel 2E · Effective May 25, 2016
  > …This AD also requires replacing the constant **delta**- pressure (**delta**-P) diaphragm of the fuel metering…
- [AD 2007-19-09](https://openairdocs.org/ad/2007-19-09.md): Constant delta pressure valve · Turbomeca Arriel 2B1 · Effective Oct 3, 2007 · superseded or historical
  > …**delta** pressure valve diaphragm on Arriel 2B1 **engines**, due to the wear of the **delta** P…
- [AD 2009-06-01](https://openairdocs.org/ad/2009-06-01.md): SUMMARY: Short circuit generated sufficient heat to ignite the paint on the cooler support cowling near the hoist cut-off connector "24 Delta.'' · Airbus Helicopters EC 155B and EC155B1 · Effective Mar 31, 2009
  > …of the right-hand **engine** cowling and just below the right **engine** inlet. Figures 1 and…
- [AD 2007-03-14](https://openairdocs.org/ad/2007-03-14.md): Hydro-mechanical metering unit (HMU) · Turbomeca Arriel 2B1 · Effective Feb 20, 2007 · superseded or historical
  > …**delta** pressure valve diaphragm on Arriel 2B1 **engines**, due to the wear of the **delta** P…
- [AD 2007-19-09 R1](https://openairdocs.org/ad/2007-19-09-R1.md): Pressure relief valve · Turbomeca Arriel 2B1 · Effective Jul 7, 2010 · superseded or historical
  > This AD applies to Turbomeca ARRIEL 2B1 turboshaft **engines** that don't incorporate modification TU157. These…
- [AD 2024-05-51](https://openairdocs.org/ad/2024-05-51.md): Turbine Section · General Electric CT7-2E1, CT7-2F1, CT7-8A and 11 more · Effective Apr 1, 2024 · superseded or historical
  > ["General Electric Company","**Delta** Enterprise","Heliqwest International Inc.","Pickering Aviation Inc.","SIXTYHAWK TC LLC","CAPITOL HELICOPTERS…
- [AD 2014-07-06](https://openairdocs.org/ad/2014-07-06.md): Hydromechanical metering unit · Turbomeca Arriel 2B1 · Effective May 15, 2014
  > This AD was prompted by reports of ruptures on hydromechanical metering unit (HMU) constant **delta** pressure…
- [AD 2005-19-10](https://openairdocs.org/ad/2005-19-10.md): Fuel control units (FCUs) · Turbomeca Arrius 2F · Effective Oct 3, 2005 · superseded or historical
  > The FAA is adopting a new airworthiness directive (AD) for Turbomeca Arrius 2 F turboshaft **engines**…
- [AD 2024-06-51](https://openairdocs.org/ad/2024-06-51.md): Engine (Turbine/Turboprop); Turbine Section · General Electric CT7-2E1, CT7-2F1, CT7-8A and 2 more · Effective Apr 23, 2024
  > …owners and operators of these **engines** and helicopters and is now issuing this AD to address…
- [AD 2013-14-06](https://openairdocs.org/ad/2013-14-06.md): Hydro-mechanical unit (HMU) fuel control · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more · Effective Sep 3, 2013
  > …5B series turbofan **engines**. This AD was prompted by corrosion of the **delta**-P valve in…
- [AD 2023-07-11](https://openairdocs.org/ad/2023-07-11.md): Turbine Engine Compressor Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more · Effective Jun 13, 2023
  > …This AD requires repetitive calculations of the oil filter **delta** pressure (OFDP) data and, depending on…
- [AD 2008-19-05](https://openairdocs.org/ad/2008-19-05.md): Parallel Valve'' reciprocating engines · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 262 more · Effective Oct 20, 2008 · superseded or historical
  > ["Reciprocating **Engine** Cylinder Assemblies","AEIO-320-D1B","AEIO-320-D2B","AEIO-320-E1A","AEIO-320-E1B…
- [AD 2009-26-12](https://openairdocs.org/ad/2009-26-12.md): Cylinder assemblies · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 264 more · Effective Feb 4, 2010
  > ["Reciprocating **Engine** Cylinder Assemblies","AEIO-320-D1B","AEIO-320-D2B","AEIO-320-E1A","AEIO-320-E1B…
- [AD 2005-26-10](https://openairdocs.org/ad/2005-26-10.md): ECi cylinder assemblies. · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 413 more · Effective Jan 31, 2006 · superseded or historical
  > The FAA is adopting a new airworthiness directive (AD) for Lycoming **Engines** (formerly Textron Lycoming) models…
- [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07.md): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more · Effective Jul 11, 2006
  > The FAA is superseding an existing airworthiness directive (AD) for Lycoming **Engines** (formerly Textron Lycoming) models…

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