AD 2020-16-04 Refers To Incorrect Illustration Of The Screw Jack Assembly In The Airplane Maintenance Manual

The FAA is adopting a new airworthiness directive (AD) for certain Pacific Aerospace Limited Model 750XL airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product.

The MCAI describes the unsafe condition as an incorrect illustration of the screw jack assembly in the airplane maintenance manual, which may cause potential errors with installation. The FAA is issuing this AD to address the unsafe condition on these products. This AD is effective September 2, 2020.

Supplementary Information: The Civil Aviation Authority (CAA), which is the aviation authority for New Zealand, has issued AD DCA/750XL/38A, dated September 5, 2019 (referred to after this as “the MCAI”), to correct an unsafe condition for Pacific Aerospace Limited Model 750XL airplanes.

The MCAI states:

• DCA/750XL/38A with effective date 5 September 2019 and a 5 hour TIS compliance is prompted by two reports of finding incorrectly assembled flap screw jacks on affected aircraft. This AD is revised to introduce Pacific Aerospace Mandatory Service Bulletin (MSB) PACSB/XL/117 issue 2, dated 21 August 2019 and expand the AD applicability to include additional aircraft S/N and parts held as spares.
• There are no additional AD requirements for aircraft and affected parts in compliance with DCA/750XL/38.
• A Pacific Aerospace Ltd (PAL) review of the 750XL Maintenance Manual (MM) and the 750XL Illustrated Parts Manual (IPM) has determined that the orientation shown in these two manuals for the flap screw jack bearing stop is incorrect. PAL has subsequently issued temporary revisions dated 5 June 2019, for both the 750XL MM and the 750XL IPM to correct the orientation shown for the flap screw jack bearing stop. These temporary revisions can be obtained from Pacific Aerospace Ltd, Hamilton, New Zealand.

Due to the possibility that there may be incorrectly assembled flap screw jack assemblies in service, this [CAA] AD is issued to introduce the corrective actions in Pacific Aerospace Mandatory Service Bulletin (MSB) PACSB/XL/117 issue 2, dated 21 August 2019. The aircraft may be recovered back to a maintenance base for the inspection, provided the flight is a non-hire or reward flight with no passengers carried.

FMI: www.regulations.gov