AD NUMBER: 2015-25-01

PRODUCT: Certain Boeing Model 757-200, 757-200CB, and 757-200PF airplanes.

ACTION: Final Rule

SUMMARY:  This AD was prompted by a report that a forward-most cam latch of the forward center cam latch pair on a main cargo door (MCD) broke during flight

This AD requires doing a general visual inspection for broken or missing cam latches, latch pins, and latch pin cross bolts; torqueing the cross bolts in the latch pins; measuring the extension of the latch pins; replacing all alloy steel cross bolts through the latch pins with corrosion resistant steel (CRES) cross bolts; doing a general visual inspection of all cam latches for lip deformation; doing an inspection of cam latch 1 and cam latch 2 for cracks and replacing all cracked or broken parts; checking the rig of the MCD and re-rigging as applicable; and doing related investigative and corrective actions, if necessary.

This AD also requires doing certain repetitive inspections until MCD rigging is done. This AD also requires repetitive MCD post-rigging inspections and corrective actions if necessary.

The FAA is issuing this AD to detect and correct discrepancies of the cam latches, latch pins, and latch pin cross bolts, which could reduce the structural integrity of the MCD, and result in potential loss of the cargo door and rapid decompression of the airplane.

DATES: This AD is effective January 26, 2016.

FMI: AD