# Airworthiness Directives; Rolls-Royce Corporation AE 3007A and AE 3007C Series Turbofan Engines
> **Rule** · Final rule. · Published 2007-11-28 · Effective 2008-01-02 · 72 FR 67242
## Document
- **Document number:** E7-22810
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce Corporation AE 3007A and AE 3007C Series Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 72 FR 67242
- **Publication date:** 2007-11-28
- **Effective date:** 2008-01-02
- **FAA docket:** Docket No. FAA-2007-26966
## Abstract

The FAA is superseding an existing airworthiness directive (AD) for Rolls-Royce Corporation (RRC) AE 3007A and AE 3007C series turbofan engines. That AD currently prohibits any flight following a ground engine start where the engine oil temperature is below 32 [deg]F (0 [deg]C), unless certain preflight operational procedures are followed. This AD also requires those actions and would also require a terminating action. This AD results from design improvements to components in the accessory gearbox air turbine starter mounting pad. We are issuing this AD to prevent an in-flight engine shutdown due to loss of engine oil from the engine accessory gearbox starter pad shaft seal drain and possible loss of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/11/28/E7-22810/airworthiness-directives-rolls-royce-corporation-ae-3007a-and-ae-3007c-series-turbofan-engines)
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