Service difficulty report · Pump · Boeing 7378

Difficulty date
November 16, 2020
Submitted
November 18, 2020
Operation
Air carrier
Aircraft
N5237A
Make and model
Boeing 7378
Aircraft serial
32608
Aircraft time
44,241 hours, 22,228 cycles
Part
Pump
Part number
66087
Condition
Inoperative
Location
Hyd System
Stage of operation
DE
How discovered
O
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

AIRCRAFT GROUNDED. NEARING TOP OF DESCENT, MASTER CAUTION HYD ILLUMINATED. ENGINE 1 HYD PRESS BEGUN FLICKERING. HYD PRESS REMAINED AT 3000 PSI ON DISPLAY. RAN QRH FOR SYSTEM AND RETRACTED GEAR MANUALLY. LAL R & R NR 1 ENGINE EDP, IAW FOR B737 AMM 29-11-11-000-801. NO LEAKS NOTED.

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