A lead line mechanic forgot to return to the gate to enter additional information on the remaining logbook page of an A320 aircraft with a 'Green' Hydraulic system fluid level discrepancy after he had already pulled the top page.
Synopsis
A lead line mechanic forgot to return to the gate to enter additional information on the remaining logbook page of an A320 aircraft with a 'Green' Hydraulic system fluid level discrepancy after he had already pulled the top page.
Narrative
February 2010; Mechanic informed me that a gate call from one of our A320 aircraft was in progress. Captain logbook discrepancy; 'Green Hydraulic System Over Serviced.' When in the cockpit; the ECAM screen on the hydraulic page indicated the arrow at the top; but not above the spart of the square. I do not know how long the aircraft was on the ground; but the ground baggage crew was in process of loading the baggage and utilizing the yellow system. I recall from my weekly and overnight Check work that the Airbus should sit on the ground with (Hydraulic) pumps 'Off' for 1 hour before an accurate reading can be achieved. As this was not the situation; I signed-off the log page discrepancy 'Green Arrow in Range with Hydraulic Pumps On.' This was a technical and administrative error on my part. The weather was raining cats and dogs that day. We had a down aircraft and the AOG (aircraft on ground) parts had been misrouted twice. Numerous other calls; escort; etc. There were only two Mechanics on duty; me and another guy. I entered the above data on the logbook white copy; ATA; station corrected and date; but on the copy that stays in the logbook; I omitted the station; ATA code and corrective action.
NASA callback
Reporter stated he had already pulled the white top page from the logbook and had returned to the maintenance office to enter the logbook data into their maintenance computer system. While doing the data entry he noticed he had not filled out the ATA chapter code and the 'Y' for 'YES' in the corrective action section of the top page he had removed from the logbook. He added the missed data to the top sheet and completed the entry in their computer. He completely forgot to go back to the gate and add the same information to the page that remained with the logbook. Apparently the Captain didn't notice the sign-off discrepancy either.Reporter stated when he turned on the Electric Hydraulic pumps to check the 'Green' hydraulic system fluid level; the Captain noted the pump procedure was not in their Pilot's Handbook when a question of fluid level comes up.
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.