Service difficulty report · Line · Boeing 7673CB

Difficulty date
September 23, 2022
Submitted
September 23, 2022
Operation
Air carrier
Aircraft
N684UA
Make and model
Boeing 7673CB
Aircraft serial
33466
Aircraft time
65,785 hours, 11,795 cycles
Part
Line
Condition
Leaking
Location
Hyd System
Stage of operation
DE
How discovered
O
Nature of condition
O
Precautionary procedure
B

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CENTER HYDRAULIC SYSTEM LOST ALL FLUID. EMERGENCY LANDING DECLARED. ADP PRESSURE/CASE DRAIN FILTER MODULE CASE DRAIN PIPE IS SHEARED CASE DRAIN PIPE (GREEN) AND CTR SYS PRESSURE PIPE (SILVER) ADP HYD FILTER MODULE CASE DRAIN AND PRESSURE ELEMENTS REPLACED PHOTOS OFF. ADJACENT PIPE (SILVER) ALSO DAMAGED. 3 PIPE SUPPORT BRACKETS REMOVED FOR REPLACEMENT PER IPC 29-11-17-04. UNIONS BLANKED. REF AMM 29-11-19-401. FOUND CASE DRAIN FILTER ELEMENT CRACKED AND P-CLIPS BROKEN ON WHEEL WELL BULKHEAD. CONTAMINATED WITH DEBRIS AND METALLIC OIL. PRESSURE FILTER ELEMENT CONTAMINATED WITH METALLIC OIL.

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