Service difficulty report · Float Switch · Doug MD11F

Difficulty date
December 10, 2010
Submitted
December 13, 2010
Operation
Air carrier
Aircraft
N612FE
Make and model
Doug MD11F
Aircraft serial
48605
Aircraft time
59,396 hours, 13,617 cycles
Engine
Ge CF680
Part
Float Switch
Condition
Malfunctioned
Location
Fuel Cell
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

AT FL340 "TANK 3 LOW" & "TANK TIP TRAPPED" NR 3. FUEL IN AUTO TRANSFERRED FROM TANK2 TO TANK3. TOTAL FUEL ONBOARD 18.0. ALERT TANK 2 LOW ILLUMINATED. "TANK 3 TIP TRAPPED ALERT" CAME ON A SECOND TIME AT FL280. DECLARED EMERGENCY AND LANDED MEM WITHOUT INCIDENT. WORK ACCOMPLISHED. OPENED PANEL 633AT IAW AMM 52-57-01 TO FOM. R & R NR3 6K FLOAT SWITCH IAW AMM 28-14-01. CLOSED PANEL IAW AMM 52-57-01. OPS & LEAK CHECK GOOD.

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