AD/B767/31 - EEC System Electromagnetic Shielding
1AD/B767/31 - EEC System Electromagnetic Shielding
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Boeing 767 Series Aeroplanes
AD/B767/31 EEC System Electromagnetic Shielding 1/90
Applicability: As detailed in the Requirement Document.
Requirement: Action in accordance with Boeing SB 767-71-0041 R2 or later revision.
Note: FAA AD 89-21-04 refers.
Compliance: Prior to 25 April 1991.
Background: Boeing have advised that at the maximum probable lightning threat level, lightning induced voltage transients in excess of the EEC qualification requirement may result. A lightning strike at take-off could therefore adversely affect EEC operation and could result in uncommanded thrust loss greater than the loss of one engine.