Situational Awareness; Time Pressure; Troubleshooting
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Company Policy; Human Factors
[The aft lavatory dump] valve was found damaged. A large chunk of ice was found around the service panel. [I] determined the valve was damaged and needed replacement. The hangar was informed to replace the valve. A Supervisor signed off the leak check as ok. The aircraft was sent to the gate leaking causing an unsafe condition and a delay. The aircraft was sent back to the hangar where the valve was replaced. This substandard maintenance needs to be stopped; pressure from management to produce aircraft. Schedule outweighs safety in the eyes of some management employees. Suggest not allowing management to disregard procedures and leave assignment of all out of service aircraft to the crew chief and maintenance technicians.
Following the discovery of 'Blue Ice' in the aft lavatory service panel; the aircraft was relocated to the hangar for a dump valve replacement. It was reported that a supervisor cleared the leak check as okay; and the aircraft was sent back to the gate for a scheduled flight. Prior to departure; it was determined that the valve was still leaking; so the aircraft was again sent to the hangar and the valve was replaced.