Commonwealth legislation

AD/BAe 146/72 - Fire Protection and Smoke Detection - Freight Compartment

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Commonwealth

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legislative instrument

Plain English Summary

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This airworthiness directive requires operators of BAe 146 aeroplanes fitted with specific L’Hotellier freight-compartment smoke detectors to perform a serviceability test per British Aerospace Service Bulletin SB.26‑A38 (rev 1) before 18 December 1998 and then at intervals not exceeding 48 hours, until Mod HCM56094A/B/C is embodied. The Civil Aviation Safety Authority mandates the tests; operators pay for the inspections and any modification work. The measure responds to a fault where the cockpit test switch can show a detector as serviceable even when its filament is blown.

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AD/BAe 146/72 - Fire Protection and Smoke Detection - Freight Compartment

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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British Aerospace BAe 146 Series Aeroplanes

AD/BAe 146/72 Fire Protection and Smoke Detection - Freight Compartment

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Applicability: All BAe 146 series aeroplanes fitted with L’Hotellier smoke detectors part number FR2113 or FR2121 and FR2213 or FR2226.

Note: These smoke detectors are known to be fitted to, but not limited to, the following BAe 146 series aeroplanes:

Model Constructor Numbers

BAe 146-100 Series aircraft - E1002

BAe 146-200 Series aircraft - E2056, E2067, E2078, E2086, E2089,

E2100, E2102, E2105, E2109, E2112, E2113, E2114, E2117,

BAe 146-300 Series aircraft - E3150, E3151, E3153, E3154, E3166,

E3168, E3182, E3186, E3194, E3198.

And

All BAe 146 Series 200 with Mod HCM50201C embodied. All BAe 146 Series 300 with Mod HCM50214C embodied.

Requirement: 1. Test the smoke detectors for serviceability in accordance with British Aerospace, Regional Aircraft Limited, Service Bulletin SB.26-A38 Revision 1 dated

20 October 1998.

Note: This Inspection Service Bulletin has been classified Mandatory by the CAA(UK).

Compliance: 1. Prior to the 18 December 1998 and thereafter at intervals not to exceed 48 hours.

Incorporation of Mod No HCM56094A, B and C (SB 26-38-56094A, B and C) is terminating action for these repetitive inspections.

This Airworthiness Directive becomes effective on 16 December 1998.

Background: During in-service trouble shooting of the smoke detectors it was found that operation of the flight deck smoke detection test switch can give a serviceable indication, even though the detector light source filament is blown. This directive introduces terminating action and supersedes AD/BAe 146/62 which is cancelled.

Source text

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

1 AD/BAe 146/72 - Fire Protection and Smoke Detection - Freight Compartment