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AD/B737/284 - Wire Bundle Chafing
Boeing 737 Series AeroplanesBoeing 737 Series Aeroplanes
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Boeing 737 Series Aeroplanes
| AD/B737/284 | Wire Bundle Chafing | 4/2006 |
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| Applicability: | Model 737-100, -200, -200C, -300, -400 and -500 series aeroplanes. |
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| Requirement: | 1. Carry out detailed inspections in accordance with the Accomplishment Instructions of Boeing Service Bulletin (SB) 737-28-1208, Revision 1, dated25 August 2005 to detect discrepancies as follows: |
| a. Chafing of the wire bundles located below the passenger compartment, above the centre fuel tank, aft of station 540 to approximately station 663.75, right buttock line (RBL) and left buttock line (LBL) 24.50. | |
| b. Damage to the fuel vapour barrier area located below the wire bundles, as applicable | |
| Note 1: For the purposes of this Directive, 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. Rectify any discrepancies, detected during the Requirement 1 inspections, in accordance with SB 737-28-1208, Revision 1. | |
| 3. Adjust and replace, as applicable, the wire bundle clamps located aft of station 540 and install a protective sleeve on the upper bundle of the bundle run at station 616, RBL and LBL 24.50; by accomplishing all of the applicable actions specified in the Accomplishment Instructions of Boeing SB 737-28-1208, Revision 1. | |
| Later revisions of the above SB, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2006-03-12, are considered acceptable for compliance with the equivalent Requirements of this Directive. | |
| Note 2: FAA AD 2006-03-12 Amdt 39-14476 refers. | |
| Compliance: | For Requirement 1 - Within 60 months after the effective date of this Directive. |
| For Requirements 2 and 3 - Before further flight after the Requirement 1 inspections. |
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