Service difficulty report · Pump · Boeing 737823

Difficulty date
August 15, 2023
Submitted
August 17, 2023
Operation
Air carrier
Aircraft
N904NN
Make and model
Boeing 737823
Aircraft serial
33317
Aircraft time
31,857 hours, 13,698 cycles
Part
Pump
Part number
887477
Part serial
MX643253
Condition
Overheated
Location
Zone 100 - Fuse
Stage of operation
CL
How discovered
V
Nature of condition
J
Precautionary procedure
A

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

What was found

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO MIA DUE TO HYDRAULIC SYSTEM B ELECTRIC MOTOR DRIVEN PUMP (EMDP) OVERHEAT LIGHT ILLUMINATED. AIRCRAFT LANDED SAFELY WITHOUT FURTER INCIDENT. MAINTENANCE REPLACED HYDRAULIC SYSTEM B EMDP SHORTED CONNECTOR D2666 PER SWPM 29-11-12 (AALA202308175787) AND THE EMDP M1114 PER AMM 29-30-00 (AALA202308171434).