Commonwealth legislation

AD/B737/17 - Aft Lavatory Dispenser Cavity Liner

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This Airworthiness Directive requires operators of Boeing 737 aeroplanes (line numbers 001–1425) with non-modular aft lavatories to inspect behind each aft lavatory towel and cup dispenser for foreign material and, if not already done, to install a protective cavity liner per Boeing Service Bulletin SB 737-25-1219. Inspections must recur every 1,000 hours until the liner is fitted; liners must be installed by 31 December 1989. The stated aim is to prevent combustible build-up behind sidewalls and reduce a fire hazard (FAA finding).

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AD/B737/17 - Aft Lavatory Dispenser Cavity Liner

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Boeing 737 Series Aeroplanes

AD/B737/17 Aft Lavatory Dispenser Cavity Liner 12/88

Applicability: All model 737 aeroplanes with line numbers 001 through 1425, equipped with non- modular aft lavatories.

Requirement: 1. Inspect the area behind each aft lavatory towel and cup dispenser if the dispenser cavities are not enclosed by a liner, and remove any foreign material.

Unless already accomplished, install a protective liner to enclose each aft lavatory towel and cup dispenser cavity in accordance with Boeing SB 737-25-1219.

Note: FAA AD 88-14-07 Amdt 39-5966 refers.

Compliance: 1. At intervals not exceeding 1000 hours time in service, until modified in accordance with Boeing SB 737-25-1219.

Before 31 December 1989.

Background: The FAA has determined that the installation of a liner at each lavatory towel and cup dispenser cavity will prevent the accumulation of combustible material behind the aircraft sidewall, and alleviate a possible fire hazard.

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Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/B737/17 - Aft Lavatory Dispenser Cavity Liner