Service difficulty report · Logic Card · Boeing 747230B

Difficulty date
January 19, 2004
Submitted
July 14, 2004
Operation
Air carrier
Aircraft
N508MC
Make and model
Boeing 747230B
Aircraft serial
21644
Part
Logic Card
Part number
65B4750552
Condition
Damaged
Location
Mlg
Stage of operation
LD
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

TLV/AMS - ON CALL BEFORE LANDING CHECK, GEAR INDICAT DOWN, INTERMITTENT BEEPING WAS HEARD. GEAR LIGHT WENT RED. PRIMARY AND ALTERNATE CHECK SHOWED RIGHT BODY AND RIGHT WING GEAR NO DOWN. CREW INITIATED GO AROUND, LEFT GEAR DOWN AND LEVEL OFF GEAR LIGHT WENT GREEN AND CHECKED IN BOTH ALTERNATE AND PRIMARY. CONFIGURED FLAPS FOR LANDING 2ND TIME AND HAD ALL GREEN. GEAR WENT RED AGAIN BUT INDICATED GEAR DOWN IN PRIMARY. ALTERNATE SHOWED RIGHT BODY GEAR AND RIGHT WING GEAR NOT DOWN. INDICATION FINALLY SETTLED WITH RIGHT WING NO DOWN IN ALTERNATE POSITION. REMOVED AND REPLCED BOTH PRIMARY AND ALTERNATE LOGIC (P/N 65B4750867) BOXES IAW AMM 31-61-14. OPERATION CHECK ALL NORMAL. (M)