SDR EIA2006048

Service difficulty report · Logic Card · Boeing 747212B

Difficulty date: April 9, 2006
Submitted: May 1, 2006
Operation: Air carrier
Aircraft: N486EV
Make and model: Boeing 747212B
Aircraft serial: 20888
Aircraft time: 86,499 hours, 23,099 cycles
System (JASC): 3230 · Landing Gear Retraction/Extension System
Part: Logic Card
Condition: Malfunctioned
Location: Mlg
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

MLG WOULD NOT EXTEND ON APPROACH INTO ORD, ALT EXTENTION REQUIRED. DMI 067 WAS GENERATED PER MEL 32-26, CAT C, DUE APRIL 19, 2006. 486EV CONTINUED TO JFK WITH MLG IN DOWN POSITION PER 32-26. REPLACED CARD FILE ASSY FOR PRIMARY GEAR SYSTEM LOGIC BUSS PER MM 32-611-14, SYS OPS CHK GOOD ON SEVERAL GEAR SWINGS.

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