Air Traffic Control Fully Certified
Communication Breakdown
ATC Issue All Types
General None Reported / Taken
Procedure; Human Factors
The frequency for FEEDER (AR4); failed. I was working AR1; the adjacent Final Sector; and needed to change Radar sites and expand my range to 'take' AR4 because their frequency was unusable. After 10-12 minutes of chaos; the transition was accomplished; but at least 7 airplanes were 'NORDO' because they were on 124.05 when it failed. It turns out that Tech Ops took 124.05 off the air without coordinating with the correct area (LA Arrivals); and were dismissive of our concerns when they were first notified. There was an obvious mistake; this has been at least the third incident in the last 6 months where Tech Ops made a mistake and there is no accountability. There needs to be more accountability on the part of Tech Ops.
SCT Controller described a chaotic situation when Tech Ops failed to follow appropriate protocols when taking one of operational frequencies.