SDR HALA2010112600567

Service difficulty report · Fmc · Boeing 7673CB

Difficulty date: November 26, 2010
Submitted: November 29, 2010
Operation: Air carrier
Aircraft: N590HA
Make and model: Boeing 7673CB
Aircraft serial: 33467
Aircraft time: 30,939 hours, 5,814 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Part number: 4052506955
Part serial: 88011034
Condition: Failed
Location: Nr 1
Part time: 11,877 hours, 21,111 cycles
Stage of operation: CL
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

ETOPS SIGNIFICANT SYSTEM, ATB, AFTER TAKEOFF TAT LIGHT ON LOSS A/T'S AND NO LNAV, VNAV CAPABILITES RTB W/NO AUTO NAV AVAILABLE FMCS UNRELIABLE (NO DATA). REMOVED AND REPLACED NR 1 FMC COMPUTER GND CK OK PER AMM 34-61-01 TAT GND CK OK PER AMM 30-33-00-715-010, NO FAULTS FOUND. MCDP TEST 2, 30'S, 40 PASSED A/C REMAIN IN LAND 3 STATUS.

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