AD NUMBER: 2018-19-13

PRODUCT: All 328 Support Services GmbH Model 328-100 and -300 airplanes.

ACTION: Final Rule.

SUMMARY: This AD was prompted by reports indicating corrosion on the horizontal stabilizer bearing supports at the contact surface to the horizontal stabilizer rear spar.

This AD requires inspections for corrosion and any other damage (i.e., cracking and chafing) of the horizontal stabilizer rear bearing supports, replacement of the affected horizontal stabilizer rear bearing supports if necessary, and modification of the horizontal stabilizer rear spar.

DATES: This AD is effective October 31, 2018.

COST: The FAA estimates that this AD affects 27 airplanes of U.S. registry. The cost of compliance is estimated as follows:

• Detailed visual inspection and eddy current inspection - 4 work-hours × $85 per hour = $340 per aircraft.
• Modification - 16 work-hours × $85 per hour = $1,360 per aircraft.
• Replacement - 24 work-hours × $85 per hour = $2,040* per aircraft

* The FAA has received no definitive data that would enable it to provide parts cost estimates for the on-condition action specified in this AD.

FMI: AD