Date: 202008
Local time of day: 0001-0600
Location: RIV.Airport, CA
Aircraft: Commercial Fixed Wing
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Flight phase: Taxi
Reporter organization: Air Carrier
Reporter function: Pilot Not Flying; Captain
Reporter qualification: Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Human factors: Confusion; Situational Awareness; Communication Breakdown
Second reporter function: Pilot Flying; First Officer
Anomaly: Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway; Inflight Event / Encounter Unstabilized Approach
Detector: Person Air Traffic Control
When detected: Taxi
Result: General None Reported / Taken
Contributing factors: Human Factors; Procedure; Airport
Primary problem: Human Factors

Narrative: Upon approaching RIV we were held at a high altitude causing us to attempt to capture the glideslope which was well below when we were cleared for the approach. At the outer marker we were still at a full deflection high above the glideslope. Realizing this approach would not be as stable as desired I called the missed approach. We executed a missed approach and were vectored for another ILS approach. On the approach we realized we had a company aircraft behind us and as best as we could understand it was at minimum spacing. The approach and landing was uneventful and were told to exit at taxiway Delta. I was concerned our company aircraft was on short final so I expedited off the runway and ensured the tail of my aircraft was clear of the active runway. I did not notice any hold short lines and did see a big yellow X to the side of the aircraft indicating a closed area. The First Officer switched to Ground Control as we were stopping for further taxi instructions when the Ground Controller called us with complete taxi instructions to the gate. We proceeded to the gate without incident. We had normal shutdown procedures and proceeded to the crew van to go to the hotel. Prior to exiting the ramp we were given a piece of paper from some unknown ramp worker for the crew to call the number on the paper. I had no idea what the situation was but called the number and visited with a man who identified himself as the Tower Manager. He seemed upset and advised me we crossed an active runway without clearance and [our company] had done that different times. He said he had called [the company] repeatedly about that and it keeps happening. He indicated [the company] needed to put a hotspot on the chart or something to stop this. I said I would file a report with [the company] so we can get this information out to the crews and thanked him for letting me know. He said this situation was a pilot deviation and I thanked him for informing me. I understand I must always have a clearance to cross an active runway but the big yellow X indicated to me the runway was closed. The Tower Manager advised me differently. I later learned from the Captain landing behind us that he received a request to call the Tower as they originally thought it was his flight that had the Pilot Deviation and he did not recall receiving 'hold short' or 'Cleared to cross' instructions either.This is an interesting situation with many concerns. I will go forward with a greater awareness for dangers and pitfalls that operating at different airports with different markings and procedures entail.


Second narrative: I was the pilot flying into RIV. After going missed approach due to traffic load into RIV we came around again with new traffic close in trail behind us. Upon exiting the runway tower gave us the instruction to exit at [taxiway] Delta. I visually cleared the airspace to the right as we taxied to the ramp on the end of Delta. As I looked down to set ground frequency Tower instructed us to contact Ground. I contacted Ground they gave instructions to taxi to parking without any hold short instructions. In the van the Captain informed me we needed to contact Tower. He contacted Tower immediately after in the parking lot at the FBO. He explained we were getting written up for a pilot deviation for failing to hold short of the extended centerline of Runway 30. On reflection it is clear I needed to be more aware of the airport environment and not let myself get over focused on the urgency of clearing the runway for traffic.Going forward I plan to be much more diligent in preventing runway incursions by staying focused on markings and extended centerlines of other runways.


Synopsis: Air carrier flight crew reported experiencing a runway incursion while crossing a runway that had a yellow X on it.