Service difficulty report · Actuator · Boeing 7377H4

Difficulty date
February 25, 2015
Submitted
February 25, 2015
Operation
Air carrier
Aircraft
N770SA
Make and model
Boeing 7377H4
Aircraft serial
30589
Aircraft time
52,985 hours, 31,031 cycles
Part
Actuator
Part number
MA30A1001
Part serial
AA201425
Condition
Faulty
Location
Fuel System
Stage of operation
UK
How discovered
O
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

DIVERSION, DECLARED EMER. FUEL IMBALANCE LIGHT ON INFLIGHT WITH XFEED OPEN & LT CTR PUMP ON. 1100 LBS IMBALANCE NOTED. IMBALANCE INCREASED SPORADICALLY TO 1900 LBS WITH XFEED CLOSED & CTR PUMPS OFF. MAIN PUMPS REMAINED ON FOR ENTIRE FLIGHT. FUEL FLOWS WERE EQUAL & NO VISIBLE SIGNS OF LEAK. IMBALANCE STABILIZED AT 1900 LBS FOR LAST 20 MINUTES OF FLIGHT. R & R ENG FUEL FEED ACTUATOR IAW MM.

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