B757-200
Maintenance Airframe; Maintenance Powerplant
Situational Awareness
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Company Policy; Human Factors
I was informed of a B757-300 aircraft that; nine days earlier had returned to field due to an engine shutdown for low oil pressure indication. The Number 2 Engine oil cap was found off. The day previous; I had reported for my scheduled shift. I was assigned a Number 2 Service Check on the B757 aircraft. Following the Work Card; both engines required oil servicing. I serviced the Number 1 Engine with one quart oil and Number 2 Engine with two quarts of oil. After servicing the oils; I wiped the areas clean and to the best of my knowledge installed the oil caps. ETOPS [aircraft].
A B757-300 ETOPS aircraft returned to field due to Number 2 Engine shut-down for a low oil pressure indication. The engine oil cap was not re-installed after an overnight Maintenance Check.