Commonwealth legislation

AD/BN-2/19 - Engine Mounting Bracket Jo-Bolts - Inspection and Modification

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

This directive requires owners/operators of Pilatus Britten‑Norman BN‑2 aeroplanes (TIS >1,000 hrs, unless Mod NB/M/455 already fitted) to inspect engine mounting jo‑bolts per Britten Norman SB BN‑2/SB.44. If jo‑bolts on both brackets of a single engine mounting can be moved or partially rotated, Mod NB/M/455 must be installed before further flight. Costs, downtime, and compliance with the service bulletin fall to the operator.

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AD/BN-2/19 - Engine Mounting Bracket Jo-Bolts - Inspection and Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Pilatus Britten-Norman BN-2 Series Aeroplanes

AD/BN-2/19 Engine Mounting Bracket Jo-Bolts - Inspection NK

and Modification

Applicability: All models which have exceeded 1000 hours total time in service not incorporating Modification NB/M/455.

Requirement: 1. Inspect the engine mounting frames for loose jo-bolts in accordance with Britten Norman SB BN-2/SB.44.

If on inspection it is found possible to move or partially rotate Jo-Bolts in both brackets on any one engine mounting, Modification NB/M/455 must be carried out before further flight.

Compliance: Within 100 hours time in service after 31 March 1971 and there- after as detailed in SB No. BN-2/SB.44.

Source text

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