A300
Maintenance Airframe; Maintenance Powerplant
Troubleshooting; Situational Awareness; Training / Qualification; Communication Breakdown
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Other / Unknown
Flight Crew Returned To Departure Airport; General Maintenance Action
Procedure; Human Factors; Aircraft; Logbook Entry
A300 aircraft; air turn back due to Green System hydraulic loss. Aircraft Maintenance Technicians (AMTs) on troubleshooting found flex hose on right side; all speed aileron was ruptured. After confirmation from Maintenance Control for the required part available in station; AMTs removed the damaged hose and replaced with new flex hose of same part number. Leak check per Aircraft Maintenance Manual (AMM) was complied with and no-leak was found; [information] was confirmed to Maintenance Control. Green System was serviced to 'Normal' range per AMM and after a conference call with Maintenance Control and Management and AMT; aircraft was called up [released] by Maintenance Control. Aircraft departed ZZZZ. AMTs looked at this purely as hydraulic leak and [the fact] that it was also part of a Flight Control component (RII) was not readily realized at that point in time.The RII was missed after installation of hydraulic hose. The aircraft is now in Hangar for C-Check. Maintenance has been advised to remove and re-install the flex hose and complete the RII procedure. [Contributing factors include] human error (forgot); time constraints (crew rest was coming close). All AMTs are immediately doing RII training. All AMTs will review [Company] form; X-XXX; every time we update any Aircraft Maintenance Logbook or [make] electronic Logbook entry. All AMTs shall discuss with each other if RII is required for any task; and if in doubt; to call Maintenance Control or Management. 'Did you RII it' placards are prominently displayed in Maintenance office; to give visual reminder of the requirement to perform RII [Inspection].
An Aircraft Maintenance Technician (AMT) reports that a Required Inspection Item (RII) was missed after a Green System hydraulic line was replaced on an A300 aircraft. The hydraulic hose for the all speed aileron had previously ruptured in flight; requiring an air turn back.