( CNN ) -- The Federal Aviation Administration is ordering that more than 1,000 Boeing 737 jets be inspected for a problem which could cause pilots to lose control of the aircraft . According to the FAA , the inspections will focus on pins which attach the horizontal stabilizers to the fuselage . They were prompted by reports that a coating used to protect the pins from wear and corrosion was applied incorrectly . The FAA says premature failure of the pins could cause reduced structural integrity of the horizontal stabilizer to fuselage attachment , resulting in loss of control of the airplane . The part number of each pin must be checked and pins with certain part numbers must be replaced with new , improved attach pins . The order , called an Airworthiness Directive , is effective May 20 and applies to Boeing 737 series 600 , 700 , 700-C , 800 , 900 and 900-ER aircraft . The inspections are not expected to affect airline schedules . The aircraft included in the directive are relatively new , entering service in 1998 or later .
FAA says a pin with # ##ing can cause pilots to lose control of aircraft . The pins attach the horizontal stabilizers to the fuselage . FAA received reports that a protective coating on the pins was applied incorrectly . The inspections are not expected to affect airline schedules .