A CL300 crew did not see and remove the Standby Pilot tube cover during preflight because its flag was missing and so rejected the takeoff after the CAS alerted STALL PROTECTION FAIL.
Synopsis
A CL300 crew did not see and remove the Standby Pilot tube cover during preflight because its flag was missing and so rejected the takeoff after the CAS alerted STALL PROTECTION FAIL.
Narrative
During preflight the standby pitot tube cover was not removed. The error resulted in an aborted takeoff and over the phone maintenance troubleshooting as well as a flight delay. After connecting the batteries I proceeded to the right side of the aircraft to set the fuel panel for our uplift. While doing so I noticed the other pilot removing the covers and pins. In effort to speed up the process I removed the right main gear pin and saw he also had a pitot cover in hand. I then preflighted the rest of the right side of the aircraft assuming the left side was completed. We held up the three gear pins to show each other we had them all pulled. We both felt the preflight was fully complete. On takeoff roll we received an amber CAS 'STALL PROTECTION FAIL' message while accelerating through approximately 30 kts. Pilot Monitoring (PM) Announced the message and called for an aborted takeoff. After clearing runway; crew noticed the Amber message had cleared and a cyan 'RUDDER LIMITER FAULT' message was illuminated. Crew referred to the QRH and the Operational Handbook and discovered it would be a 'No-GO' item. After briefing the passengers; we returned to the ramp and called maintenance to troubleshoot. After performing a computer reset which cleared the faults; the ramper noticed the standby pitot cover was still on. This particular cover was missing the tethered 'remove before flight' flag. Always ensure thorough communication if a normal one person duty is shared. Also facilitate replacement covers if the flags are missing.
Second reporter narrative
The cover that was missed during the preflight inspection did not have a flag on it. Since is the smallest cover and the least noticeable the missing flag contributed to our missing it. I think that by showing each cover to the other pilot prior to closing the door would prevent this from occurring again.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.