Commonwealth legislation

AD/VAT/18A - Limitation of Flap Movement - Modification

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legislative instrument

Plain English Summary

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This airworthiness directive requires Victa Airtourer 100/115 and specified AESL 115 serial numbers to have the flap selector physically limited to the first three flap positions by modifying the flap-selector quadrant (per Victa SB No. 34 / Mod B129). Alternatively, the limitation may be removed only after AD/VAT/34 is incorporated and an immediate flight test by a type‑endorsed pilot with a Commercial Licence confirms safe handling with the fourth‑notch flap; a signed test report must be sent to the Secretary within seven days.

Aircraft owners fund and arrange the modification or the test flights and must comply by 1 September 1971; the regulator will issue an AFM amendment if tests are satisfactory.

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Direct links to the current provisions in AD/VAT/18A - Limitation of Flap Movement - Modification.

AD/VAT/18A - Limitation of Flap Movement - Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Victa and A.E.S.L. Airtourer Series Aeroplanes

AD/VAT/18A Limitation of Flap Movement - Modification 5/64

Applicability: Victa Airtourer 100 and 115. All AESL model 115 with S/Nos. 501 to 513 except 506

and 509.

Requirement: 1. Modify the flap selector quadrant to allow selection of only the first 3 positions, in accordance with Victa SB No. 34 or Victa Modification No. B129; or

2. Victa Modification No. B129 (SB No. 34) may be removed following incorporation of Air Navigation Order AD/VAT/34 and also provided the aircraft is test flown by a pilot endorsed for the type and holding at least a Commercial Pilot Licence immediately following removal of the Modification No. B129 in order to check the general handling and controllability with fourth notch of flap extended.

The tests shall determine whether:

(a) any excessive wing drop or other undesirable Characteristics occur when the aircraft is stalled power “on” and power “off” in both level and turning flight; and

(b) approaches and landings including precautionary landings can be safely executed under all normal operating conditions.

A signed copy of the flight test report shall be forwarded to the Secretary within 7 days of completion of the tests.

Note: An amendment to the aircraft flight manual will be forwarded to the owner on receipt of the satisfactory test report.

Compliance: Before 1 September 1971.

Source text

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

1 AD/VAT/18A - Limitation of Flap Movement - Modification