October 14, 2008 -
According to NTSB, FAA should require all operators of Airbus single-aisle and Bombardier CL-600 airplanes to revise existing aircraft maintenance manual procedures and inspection documents to require dual inspection signoff to confirm that engine fan cowls are latched after completing engine maintenance that involves opening of engine fan cowl. Also, maintenance personnel should be required to inform flight crews when engine fan cowls have been opened before flight.
The National Transportation Safety Board recommends that the Federal Aviation Administration:
Require all operators of Airbus single-aisle and Bombardier CL-600 airplane models to revise existing aircraft maintenance manual procedures and maintenance inspection documents to require a dual inspection signoff to confirm that engine fan cowls are latched after completing any engine maintenance that involves the opening of an engine fan cowl. (A-08-79)
Require all operators of Airbus single-aisle and Bombardier CL-600 airplane models to require maintenance personnel to inform flight crews when engine fan cowls have been opened before flight. (A-08-80)
Require all operators of Airbus single-aisle and Bombardier CL-600 airplane models to provide guidance to maintenance personnel and flight crews on how to inspect engine fan cowls to verify that they are latched properly. (A-08-81)
Determine the extent of the problem of engine fan cowl separations on all airplanes and, should a widespread problem exist for any airplanes, require operators of those airplanes to include a dual inspection signoff in their maintenance procedures to confirm that engine fan cowls are latched after completing any engine maintenance that involves the opening of an engine fan cowl. (A-08-82)
Electronic versions of letters may or may not include enclosures; however, related publications, accident briefs, and aviation accident synopses may be found on the NTSB website. Company Information: Name: National Transportation Safety Board Address: 490 L'Enfant Plaza, SW City: Washington State: DC ZIP: 20594 Country: USA Phone: 202-314-6000 http://www.ntsb.gov
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