B767-300 and 300 ER
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 60; Flight Crew Total 14000; Flight Crew Type 3000
Communication Breakdown
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR
General None Reported / Taken
Procedure; Human Factors
I am submitting this report as a result of being informed by [Company] representative that a flight; or flights; I operated were potentially in violation of CFR 121.555. I was unaware of this at the time I was scheduled and then operated the potentially violation flights. Although I understand it is the joint responsibility of the crew (Captain) and the Dispatcher to ensure the airport is OPSPECS legal before the operation of a flight; it is not the norm to check each and every leg in a regularly scheduled; [dispatch packet] produced and approved flight segment and pairing. First Officer and I operated without being aware that ZZZ was listed as an Alternate; not a Destination airport in OPSPECS for [Company] Boeing 767 aircraft. We were made aware of this via email. Captain and First Officer operated the following flights with Aircraft X; a B-767-300.  [We flew a] city pairings we do not normally operate; but to our knowledge were normal domestic gateways. This was a trip in the published [dispatch package] and had no reason to believe any discrepancies or legal issues were involved in operating this trip. Perhaps in the future we as a crew and certainly me as the Captain will query the dispatcher more often when operating unfamiliar city pairs for legal issues in addition to my normal communication with Dispatch.
[Report narrative contained no additional information.]
B767 flight crew reported landing at an airport not authorized per company Ops Specs.