Commonwealth legislation

AD/LA-4/13 - Wing Rear Spar Fittings - Inspection

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legislative instrument

Plain English Summary

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This directive requires owners/operators of Colonial (Consolidated Aeronautics) LA-4 series aeroplanes (Models C‑1 and C‑2) to perform recurring visual inspections of the wing rear spar fittings (specified part numbers), with an initial check within 10 hours after 18 Dec 1974 and repeats every 100 hours.

It aims to prevent operation with cracked or failed fittings; compliance imposes inspection, downtime and repair costs on operators and work for maintenance providers.

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AD/LA-4/13 - Wing Rear Spar Fittings - Inspection

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Consolidated Aeronautics, Colonial and LA-4 Series Aeroplanes

AD/LA-4/13 Wing Rear Spar Fittings - Inspection 12/74

Applicability: All Colonial Models C-1 and C-2.

Requirement: To prevent operation with cracked or failed wing rear spar fittings or wing rear spar fittings with distorted bolt holes, accomplish the following:

Remove the cover compartment containing the aileron control system, located behind the fuel tank area and visually inspect the wing rear spar LH and RH fore fittings P/Ns 3200-151L and 3200-151R, for cracks, failures or distorted bolt holes.

2. Remove the baggage compartment and visually inspect the wing rear spar LH and RH aft fittings, P/Ns 3200-148L and 3200-148R, for cracks, failures or distorted bolt holes.

Compliance: Within 10 hours time in service after 18 December 1974 and there- after at intervals not exceeding 100 hours time in service.

Source text

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

1 AD/LA-4/13 - Wing Rear Spar Fittings - Inspection