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AD/B767/167 Amdt 3 - Centre/Auxiliary Fuel Tank Override/Jettison Fuel Pumps
Boeing 767 Series AeroplanesBoeing 767 Series Aeroplanes
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Boeing 767 Series Aeroplanes
| AD/B767/167 Amdt 3 | Centre/Auxiliary Fuel TankOverride/Jettison Fuel Pumps | 13/2005 |
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| Applicability: | Boeing 767-200, -300 and -300F series aeroplanes. |
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| Requirement: | Revise the Limitation Section of the Aircraft Flight Manual (AFM), replace override fuel pumps, carry out repetitive inspections of override/jettison fuel pumps and install modified override and override/jettison fuel pumps in accordance with the requirements of FAA AD 2001-15-08, Amdt 39-12342.Terminating Actions.Accomplishment of the requirements of paragraph (e) of FAA AD 2001-15-08 constitutes terminating action for the requirements of AD/B767/77 Amdt 2 (refer FAA AD 94-11-05, amendment 39-8921 dated 31 May 1994).Accomplishment of the requirements of paragraph (i) of FAA AD 2001-15-08 constitutes terminating action for:The requirements of paragraphs (a), (b), (c), (d), (e), (g), and (h) of FAA AD 2001-15-08, and the requirements of AD/B767/77 (refer FAA AD 94-11-05, amendment 39-8921 dated 31 May 1994); andThe requirements detailed in AD/B767/55.Note 1: FAA AD 2001-15-08 Amdt 39-12342 refers.Note 2: AD/B767/77 Amdt 2 relates to FAA AD 94-11-05 Amdt 39-8921.Note 3: AD/B767/55 relates to FAA AD 91-15-11. |
| Compliance: | (a) For other than paragraph (i) of the requirement document: As detailed in the requirement document from the effective date of the original issue of this directive.(b) For paragraph (i) of the of the requirement document: Within 84 months from the effective date of the original issue of this directive.Note 4: Compliance (b) reflects an extension of 48 months to the original compliance period for this Directive, approved by FAA letter 140S-03-120 dated 1 May 2003 attached to Boeing Service Letter 767-SL-28-036 dated 10 July 2003. |
| This Amendment becomes effective on 22 December 2005. | |
| Background: | The actions required by this Directive are intended to prevent ignition of fuel vapours due to the generation of sparks inside the fuel tank caused by steel-to-steel contact during dry fuel pump operation.This amendment provides terminating actions for AD/B767/55 for those pumps fitted with machined diffuser rings.Amendment 2 changed the original compliance period for paragraph (i) of the requirement document following issue of FAA letter approving an extension. This followed a submission from Boeing to be given sufficient time to carry out tests etc. to investigate operator reports of intermittent fuel imbalance caused by modified replacement pumps.Amendment 1 provided terminating actions as detailed in the requirement document with reference to the relevant Australian Directive.The original issue of the Airworthiness Directive became effective on 17 April 2003.Amendment 1 of this Directive became effective 30 October 2003.Amendment 2 of this Directive became effective on 20 January 2005. |