Date: 202006
Local time of day: 1201-1800
Location: ZZZ.Airport, US
Aircraft: Commercial Fixed Wing
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Flight phase: Parked
Reporter organization: Air Carrier
Reporter function: Pilot Not Flying; Captain
Reporter qualification: Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Human factors: Situational Awareness
Second reporter function: Lead Technician
Anomaly: Deviation / Discrepancy - Procedural MEL / CDL; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance
Detector: Person Other Person
When detected: Other Post Flight
Result: General Maintenance Action
Contributing factors: Staffing; Environment - Non Weather Related; Human Factors; Procedure
Primary problem: Procedure

Narrative: The Chief Pilot notified me that we departed without an ETOPS Pre-Departure Check and an open AML write-up for the same issue.The logbook had all the ETOPS Pre-Departure Work Cards For the mechanics in it that made it appear that the check was completed and that caused confusion.The logbook was on the airplane in the normal location; when there is an open write-up they could remove the logbook from the storage bin and return it when the write-up has a corrective action.


Second narrative: Aircraft X left our station at XA:45 local for a scheduled XB:00 departure with an open logbook entry for the ETOPS pre-departure check completed steps 1-8 and the final steps not accomplished. The aircraft was towed to the gate at 1X:49 local and was never assigned to anyone to accomplish the final ETOPS steps of the pre-departure check. We have been splitting workload between Terminal Y and Terminal X maintenance personnel. Terminal Y AMT's had been accomplishing all [State] ETOPS PDC's since most of the Terminal X AMT's were out on pandemic leave. Terminal Y AMT's have primarily covered gates [4 named gates] and the [State] ETOPS. Terminal Y personnel did not have a crew chief yesterday and assumed Terminal X AMT's were accomplishing trip ABC ETOPS; since it was leaving from gate YYY as the Supervisor; I was consumed with a problem on [two other aircraft] scheduled for a flight to ZZZZ and did not follow up on trip ABC ETOPS prior to shift change and trip ABC was departing on the evening shift. I did not give a detailed enough turn over to the oncoming crew about its status. Going forward Terminal X AMT's will be accomplishing all of the ETOPS PDC's leaving from Terminal X. We will be assigning AMT's to meet and greet every arriving aircraft upon arrival at the gate regardless of inbound flight or a taxi/tow up from remote or hangar; to debrief the flight crew and get eyes on the logbook. As the Supervisor on shift; I will be backstopping and double checking/verifying compliance with this policy. I will be briefing the crew daily to make sure these expectations are clear and understood. We will be giving a detailed written and verbal turn over to the oncoming crew chiefs and management team members about the status of work that is in progress and yet to be accomplished. We will be giving parking locations and taxi/tow up times for the ETOPS flights that are departing on the evening shift.


Synopsis: Flight crew reported they departed without an ETOPS Pre-Departure Check and an open AML write-up for the same issue. Maintenance personnel reported the aircraft was not assigned to anyone; therefore the work was not accomplished.