What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On April 27, 2001, at 1720E, while enroute from teterboro, NJ, to dupage, IL, the hydraulic pressure warning system illuminated. The crew followed the flight manual produres which eventually came to an emergency gear extension and landing at pit. The aircraft landed and taxied to the ramp without incident. The chief pilot for the aircraft's management personnel troubleshot the system. No discrepancies were noted. The (a) hydraulic system had given a failure indication. The (b) and (c) systems were operational normal. The (a) hydraulic system was placed on the FAR 91 MEL even though it was testing normal. The aircraft was returned to serivce. As of 5/4/01, the (a) pump had been changed for precautionary measures, and the system was functioning normal. Submission of this report closes this investigation.
As the FAA filed it
(-23) ON APRIL 27, 2001, AT 1720E, WHILE ENROUTE FROM TETERBORO, NJ, TO DUPAGE, IL, THE HYDRAULIC PRESSURE WARNING SYSTEM ILLUMINATED. THE CREW FOLLOWED THE FLIGHT MANUAL PRODURES WHICH EVENTUALLY CAME TO AN EMERGENCY GEAR EXTENSION AND LANDING AT PIT. THE AIRCRAFT LANDED AND TAXIED TO THE RAMP WITHOUT INCIDENT. THE CHIEF PILOT FOR THE AIRCRAFT'S MANAGEMENT PERSONNEL TROUBLESHOT THE SYSTEM. NO DISCREPANCIES WERE NOTED. THE (A) HYDRAULIC SYSTEM HAD GIVEN A FAILURE INDICATION. THE (B) AND (C) SYSTEMS WERE OPERATIONAL NORMAL. THE (A) HYDRAULIC SYSTEM WAS PLACED ON THE FAR 91 MEL EVEN THOUGH IT WAS TESTING NORMAL. THE AIRCRAFT WAS RETURNED TO SERIVCE. AS OF 5/4/01, THE (A) PUMP HAD BEEN CHANGED FOR PRECAUTIONARY MEASURES, AND THE SYSTEM WAS FUNCTIONING NORMAL. SUBMISSION OF THIS REPORT CLOSES THIS INVESTIGATION.