COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 767 Series Aeroplanes
AD/B767/102 Fuel Pump Conduit Sleeving Inspection 8/98
TX
Applicability: All Boeing Model 767 aircraft line positions 001 to 689 inclusive and 691.
Requirement: 1. Perform a one-time visual inspection to confirm installation of Teflon sleeves over the electrical wires to the boost pumps installed inside conduits in the main and center wing tanks in accordance with Boeing Message M-7200-98-01080, dated 18 March 1998.
2. If any Teflon sleeve is found to be missing during the inspection required by Requirement 1 of this AD inspect to detect damage to the wires, in accordance with Boeing Message M-7200-98-01080, dated 18 March 1998.
- If no damage is found, install a Teflon sleeve in accordance with Boeing Message M-7200-98-01080, dated 18 March 1998.
3. If any damage is found, inspect to detect damage to the conduits in accordance with Boeing Message M-7200-98-01080, dated 18 March 1998.
- If no damage is found, replace any damaged wire and install a Teflon sleeve in accordance with Boeing Message M-7200-98-01080, dated 18 March 1998.
b. If any damage is found, replace any damaged wire and conduit and install a Teflon sleeve, in accordance with Boeing Message M-7200-98-01080, dated 18 March 1998.
4. Operators are to report all instances of missing sleeving, sleeving that required rework, and any instances of damaged wiring to Boeing. The report should include the following:
- the aircraft model number;
b. the aircraft line position;
c. the total number of hours time-in-service accumulated on the airplane;
d. the total number of flight cycles accumulated on the airplane;
e. a description of the area of the wiring where the sleeving was missing; and
f. a description of the damage found.
Note: FAA AD 98-10-10 Amdt 39-10522 dated 12 May 1998.
Compliance: 1. For requirement 1; within 60 days of the effective date of this AD.
2. For requirements 2 and 3; before next flight, following the requirement 1 inspection.
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
3. For requirement 4; within 10 days of accomplishing the required inspections and rectifications.
This airworthiness directive becomes effective on 27 May 1998.
Background: This AD requires a one-time inspection to confirm the installation of Teflon sleeves over certain electrical wires inside conduits installed in the fuel tanks and corrective actions if found necessary. This action is prompted by a report of missing Teflon sleeves which protect the wiring insulation from chafing. The actions specified in this AD are intended to prevent such chafing which could eventually expose the electrical conductor creating the potential for arcing from the wire to the conduit and consequent fuel tank fire/explosion.
Overview
The Civil Aviation Regulations 1998, as amended by PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES, introduced a specific Airworthiness Directive (AD/B767/102) in 1998 to address a safety concern regarding the installation of Teflon sleeves over electrical wires in Boeing 767 series aeroplanes. The directive was enacted to prevent potential chafing of the wiring insulation, which could lead to arcing and consequently, a fuel tank fire or explosion. This AD was issued by the Civil Aviation Safety Authority (CASA) in response to reports of missing Teflon sleeves, aiming to ensure the integrity of the aircraft's electrical systems. The policy objective was to enhance the safety of air travel by mandating a thorough inspection and corrective actions where necessary, thereby reducing the risk of electrical faults in the specified aircraft models.
Scope and Application
The Civil Aviation Regulations 1998, under Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifies the Airworthiness Directive AD/B767/102 for Boeing 767 Series Aeroplanes, targeting the inspection of fuel pump conduit sleeving. This directive applies to all Boeing 767 aircraft line positions ranging from 001 to 689 inclusive and 691. The primary requirement is a one-time visual inspection to confirm the installation of Teflon sleeves over the electrical wires leading to the boost pumps in the main and center wing tanks, as detailed in Boeing Message M-7200-98-01080 dated 18 March 1998. Depending on the findings of this inspection, further actions may include the detection and repair of damaged wires and conduits, with all instances of missing sleeving, rework, and damage reported to Boeing within stipulated timeframes. This regulation ensures that any potential risks from chafing of electrical wires are mitigated, thereby enhancing the overall safety of the aircraft in operation.
Key Provisions
The Civil Aviation Regulations 1998, Part 39, Schedule of Airworthiness Directives, specifically AD/B767/102, mandates a one-time visual inspection of Boeing 767 Series aeroplanes to confirm the installation of Teflon sleeves over the electrical wires of the boost pumps in the main and centre wing tanks (AD/B767/102, Requirement 1). This directive applies to all Boeing 767 aircraft line positions 001 to 689 inclusive and 691 (AD/B767/102, Applicability). If any Teflon sleeve is missing, operators must inspect the wires for damage and install a sleeve if no damage is found (AD/B767/102, Requirement 2). Should damage be detected, further inspection of the conduits is required, with replacement of damaged wires and conduits as necessary, followed by the installation of a Teflon sleeve (AD/B767/102, Requirement 3). Operators must report any instances of missing sleeving, rework, and damaged wiring to Boeing, including details such as the aircraft model number, line position, total hours in service, total flight cycles, and descriptions of the missing sleeving and any damage (AD/B767/102, Requirement 4).
Operators are obligated to perform the initial inspection within 60 days of the effective date of the directive, and any subsequent inspections and corrective actions must be completed before the next flight (AD/B767/102, Compliance 1 and 2). Additionally, operators must submit their reports to Boeing within 10 days of completing the required inspections and rectifications (AD/B767/102, Compliance 3). The directive became effective on 27 May 1998, and its purpose is to address the potential risk of wiring chafing, which could lead to arcing, fuel tank fires, or explosions (AD/B767/102, Background).
Failure to comply with the requirements of this directive can lead to serious safety issues, potentially resulting in catastrophic outcomes for both the aircraft and its occupants. The directive emphasises the importance of thorough inspections and timely reporting to prevent any potential hazards. Non-compliance may also lead to regulatory action, including fines or other penalties as stipulated under the Civil Aviation Act 1988 and associated regulations. Operators must ensure they adhere to the specified timelines and reporting requirements to maintain airworthiness standards and ensure the safety of their operations.