What was found
AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK FOUND AFT LEFT EMERGENCY OPERATING CYLINDER UNDER LIMITS. SERVICED OPERATING CYLINDER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK FOUND AFT LEFT EMERGENCY OPERATING CYLINDER UNDER LIMITS. SERVICED OPERATING CYLINDER.