Division Boeing 767 Series Aeroplanes - AD/B767/229 - Main Tank Fuel Boost Pump Flame Arrestor - Boeing 767 Series Aeroplanes

Boeing 767 Series Aeroplanes

AD/B767/229	Main Tank Fuel Boost Pump Flame Arrestor	4/2007

Applicability:	Boeing Model 767-200, -300, -300F, and -400ER series aeroplanes.
Requirement:	1. Except as provided by the optional terminating action; do a detailed inspection of each main tank fuel boost pump to determine if the pump shaft flame arrestor is installed, a measurement of the flame arrestor's position in the pump, and all applicable corrective actions, by accomplishing all the actions specified in the Accomplishment Instructions of Boeing Alert Service Bulletin (ASB)767-28A0077 (for Model 767-200, -300, and -300F series aeroplanes) or Boeing ASB 767-28A0081 (for Model 767-400ER series aeroplanes), both Revision 1, both dated 8 July 2004, as applicable.Inspections accomplished before the effective date of this AD in accordance with Boeing ASB 767-28A0077, dated 6 March 2003; or Boeing ASB 767-28A0081, dated 6 March 2003; are considered acceptable for compliance with the corresponding actions specified in Requirement 1 and 3 of this AD.Note 1: Boeing Alert Service Bulletins 767-28A0077 and 767-28A0081 reference Hamilton Sundstrand Service Bulletin 5006003-28-2, dated 25 October 2002, as an additional source of service information for accomplishment of the inspection and corrective actions. Although the Hamilton Sundstrand service bulletin specifies to return main tank fuel boost pumps with damaged, broken, or out- of-position flame arrestors to a repair shop, that action is not required by this AD.Note 2: For the purposes of this AD, a detailed inspection is: "An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.''2. Replace the left and right main tank fuel boost pumps with new or modified pumps in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 767-28A0088 (for Model 767-200, -300, and -300F series aeroplanes) or Boeing Alert Service Bulletin 767- 28A0089 (for Model767-400ER series aeroplanes), both dated 24 February 2005, as applicable.

Applicability:

Boeing Model 767-200, -300, -300F, and -400ER series aeroplanes.

Requirement:

1. Except as provided by the optional terminating action; do a detailed inspection of each main tank fuel boost pump to determine if the pump shaft flame arrestor is installed, a measurement of the flame arrestor's position in the pump, and all applicable corrective actions, by accomplishing all the actions specified in the Accomplishment Instructions of Boeing Alert Service Bulletin (ASB)767-28A0077 (for Model 767-200, -300, and -300F series aeroplanes) or Boeing ASB 767-28A0081 (for Model 767-400ER series aeroplanes), both Revision 1, both dated 8 July 2004, as applicable.Inspections accomplished before the effective date of this AD in accordance with Boeing ASB 767-28A0077, dated 6 March 2003; or Boeing ASB 767-28A0081, dated 6 March 2003; are considered acceptable for compliance with the corresponding actions specified in Requirement 1 and 3 of this AD.Note 1: Boeing Alert Service Bulletins 767-28A0077 and 767-28A0081 reference Hamilton Sundstrand Service Bulletin 5006003-28-2, dated 25 October 2002, as an additional source of service information for accomplishment of the inspection and corrective actions. Although the Hamilton Sundstrand service bulletin specifies to return main tank fuel boost pumps with damaged, broken, or out- of-position flame arrestors to a repair shop, that action is not required by this AD.Note 2: For the purposes of this AD, a detailed inspection is: "An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.''2. Replace the left and right main tank fuel boost pumps with new or modified pumps in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 767-28A0088 (for Model 767-200, -300, and -300F series aeroplanes) or Boeing Alert Service Bulletin 767- 28A0089 (for Model767-400ER series aeroplanes), both dated 24 February 2005, as applicable.

Optional Terminating Action--Records ReviewFor any period when the part number (P/N) of a main tank fuel boost pump installed on any aeroplane, as conclusively determined from a review of aeroplane maintenance records, is P/N 5006003D, no further action is required by Requirement 1 of this AD for that pump only.Accomplishment of the replacement terminates the repetitive measurement detailed in Requirement 1 of this AD for that pump only.Note 3: Boeing Alert Service Bulletins 767-28A0088 and 767- 28A0089 reference Hamilton Sundstrand Service Bulletin 5006003-28-3, dated 8 December 2004, as the appropriate source of service information for modifying the pump.3. Only main tank fuel boost pumps identified in paragraphs (a) and (b) below may be installed on any aeroplane.(a) Any main tank fuel boost pump that has been inspected, and on which all applicable corrective actions have been performed, in accordance with Requirement 1 of this AD.(b) Any main tank fuel boost pump having P/N 5006003D.Note 4: FAA AD 2007-04-16 Amdt 39-14948 dated 5 February 2007 refers.

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