A Mechanic reports the 'daily' application of grease to the Fuel Crossfeed Valve Actuator on one of their B737-700's was not accomplished as required by the CDL; for deferring a removed right Main Landing Gear inner door.

Date: 2009-01 · Aircraft: B737-700 · Phase: ground

Anomalies: aircraft-equipment-problem-less-severe|deviation-discrepancy-procedural-far|deviation-discrepancy-procedural-mel-cdl|deviation-discrepancy-procedural-published-material-policy|deviation-discrepancy-procedural-maintenance

Synopsis

A Mechanic reports the 'daily' application of grease to the Fuel Crossfeed Valve Actuator on one of their B737-700's was not accomplished as required by the CDL; for deferring a removed right Main Landing Gear inner door.

Narrative

Removal of the Right-hand Main Landing Gear Inner Door per CDL 32-10-3B has a Maintenance Procedure that requires the 'daily' application of grease to the Fuel Crossfeed Valve Actuator Shaft per the Aircraft Maintenance Manual. An entry in the Maintenance Log is required to document that the procedure has been accomplished. Maintenance Control monitors the compliance of the CDL procedure by opening a second log page used for tracking these procedures and is deferred maintenance tracking. At XA26 the aircraft arrived. Knowing that the procedure had not been complied with for the day; the Line Maintenance Coordinator was notified by phone at approximately XA50 and was told to accomplish the procedure. They were told that this had not yet been done for the day and that this procedure had to be accomplished and documented prior to midnight. Upon my arrival to work today; while preparing for shift turnover; I was checking to see if all open tracking deferrals that had a daily; or every cycle inspection requirement; and had their associated procedures accomplished or not. Looking in Maintenance Compliance Systems for the aircraft and the tracking log page; I saw that the CDL procedure had not been accomplished as was requested the previous night because the date of accomplishment in Maintenance Compliance Systems was the Jan/XB/09 instead of the Jan/XA/09. This indicates a failure to comply with the CDL Maintenance Procedure of a 'daily' application of grease. It appears that since the aircraft remained overnight; the accomplishment of the procedure was pushed to the overnight work package instead of doing it when requested. My safety concern over this practice is that the aircraft could have been called upon by the operation earlier in the evening and could have flown away without the application of fresh grease onto the actuator shaft. It had already flown 3 cycles from the previous day's application.

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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.