Service difficulty report · Hyd Module · Boeing 72722C

Difficulty date
October 16, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N928UP
Make and model
Boeing 72722C
Aircraft serial
19091
Part
Hyd Module
Part number
651782114
Condition
Failed
Location
A-Hyd Syst
Stage of operation
CR
Nature of condition
J
Precautionary procedure
O

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

What was found

INSPECTION TYPE N/A, INFLIGHT HAD HYD A-SYS OVERHEAT. FOLLOWED CHECKLIST, TURNED PUMPS OFF AFTER OVERHEAT EXT, TURNED PUMPS BACK ON AND GOT 200 LBS PRESS PER PUMP. A TOTAL OF 500 PSI WAS ATTAINED WITH BOTH PUMPS, QTY WAS GOOD. PROCEEDED WITH LOSS OF HYD SYS-A CHECKLIST. WHILE MANUAL EXTENDING FLAPS THE OUTBOARDS WOULD NOT EXTEND, GOT ALL LEADING EDGE DEVICES. REMOVED AND REPLACED HYDRAULIC SYS-A MODULAR IAW MM 29-11-00, LEAKED CHECKED GOOD. (P/N 65-17821-14) (S/N 2381A) ON, (P/N MR29108-60) OFF.

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