B737 Undifferentiated or Other Model
Maintenance Airframe; Maintenance Powerplant
Communication Breakdown
Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Bird / Animal
General Flight Cancelled / Delayed
Procedure
The previous flight leg the airplane experienced a birdstrike landing. Maintenance accomplished a birdstrike inspection per Maintenance Manual. No Maintenance checkcard was referenced. I asked 2 mechanics to accomplish Maintenance task 5. Afterwards management stated it was an unacceptable delay because General procedures manual allows the maintenance Manual references to be used in lieu of the workcards. True; unbeknownst to me GPM does state this. However; General procedures Manual states the workcard takes 'precedence' when 'conflicts' occur between documents. The 737 Maintenance Manual 5 and task card 5 have profound differences.The question now arises; if a mechanic chooses the Maintenance Manual reference over the workcard; how does he/she know the language of the Maintenance Manual is consistent with the work card. Furthermore; GPM technically allows Maintenance Manual references to be used instead of all common task workcard procedures like towbar disconnect or oil servicing.
A Maintenance Technician reported that maintenance took a delay because of the required inspection for a bird strike was not accomplished per work cards.