20001008024539I

Incident

FAA incident report · Lear 60LEAR · Indianapolis, IN · October 8, 2000

Date: October 8, 2000 · 11:25 local
Place: Indianapolis, IN
Airport: Indianapolis International
Phase of flight: Normal Cruise
Operating rules: General operating rules (Part 91)
Aircraft: N223FX
Reported as: Lear 60LEAR
People aboard: 2
Fatal injuries: 0

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) At cruise the left hydraulic pressure low warning light illuminated. 5 min later the right hydraulic pressure low light illuminated. Pressure went to zero. The landing gear was extended with the emergency extension system. Maintenance personnel found that the engine drive hydraulic pump pressure line on both engines to be covered with fluid. Further investigation found that a bleed air line that applies pressure to the hydraulic reservoir had been disconnected and capped off. This resulted in the loss of head pressure at the reservoir, and the over pressurization of the system.

As the FAA filed it

(-23) AT CRUISE THE LEFT HYDRAULIC PRESSURE LOW WARNING LIGHT ILLUMINATED. 5 MIN LATER THE RIGHT HYDRAULIC PRESSURE LOW LIGHT ILLUMINATED. PRESSURE WENT TO ZERO. THE LANDING GEAR WAS EXTENDED WITH THE EMERGENCY EXTENSION SYSTEM. MAINTENANCE PERSONNEL FOUND THAT THE ENGINE DRIVE HYDRAULIC PUMP PRESSURE LINE ON BOTH ENGINES TO BE COVERED WITH FLUID. FURTHER INVESTIGATION FOUND THAT A BLEED AIR LINE THAT APPLIES PRESSURE TO THE HYDRAULIC RESERVOIR HAD BEEN DISCONNECTED AND CAPPED OFF. THIS RESULTED IN THE LOSS OF HEAD PRESSURE AT THE RESERVOIR, AND THE OVER PRESSURIZATION OF THE SYSTEM.