# SDR EIA2006048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2006
- Submitted: May 1, 2006
- Operation: Air carrier
- Aircraft: N486EV
- Make and model: Boeing 747 212B
- Registry model: [Boeing 747 212B](https://openairdocs.org/model/boeing-747-212b) (OpenAirDocs)
- Aircraft serial: 20888
- Aircraft time: 86,499 hours, 23,099 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Logic Card
- Condition: Malfunctioned
- Location: Mlg
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/EIA2006048

## Discrepancy

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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