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AD/LEARJET 35/41 - Engine Firewall
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Turn the raw legal text into a practical explanation grounded in AD/LEARJET 35/41 - Engine Firewall.
| AD/LEARJET 35/41 | Engine Firewall | 11/2007 |
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| Applicability: | Model 35, 35A, 36, and 36A aircraft, as identified in Learjet Service Bulletin35/36-54-3 original issue, or later FAA approved revision. |
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| Requirement: | Inspect for unsealed gaps on the engine pylon side of the engine firewall, and clean and seal any unsealed gap in accordance with Learjet Service Bulletin 35/36-54-3 original issue, or later FAA approved revision.Note: FAA AD 2007-17-17 Amdt 39-15175 refers. |
| Compliance: | Within 12 months after 25 October 2007, unless already accomplished. |
| This Airworthiness Directive becomes effective on 25 October 2007. | |
| Background: | The FAA received a report of unsealed gaps (penetration points) of the engine firewall that were discovered during production. Such a condition, unless corrected, could allow penetration of flammable liquids or fire through the engine firewall into the engine pylon, which could lead to fire inside the aircraft. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
7 September 2007