SDR CALA2020020300323

Service difficulty report · Fmc · Boeing 777222

Difficulty date: February 3, 2020
Submitted: February 3, 2020
Operation: Air carrier
Aircraft: N794UA
Make and model: Boeing 777222
Aircraft serial: 26953
Aircraft time: 98,604 hours, 12,998 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Inoperative
Stage of operation: CR
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

FMC FMC DATA ON CDU IS MISSING OR INCORRECT LEFT CDU UNABLE TO ACCESS FMC ON LEFT CDU. NO FMC PROMPT ON MENU PAGE 1L. REPLACED CDU REF AMM 34-61-02-020-801 REPLACED CDU UPDATED PARTS INFO ROTABLE PARTS CHANGE WAS INDICATED - TT # 1115879 SN OFF 3437 UNIT, CONTROL D OFF 27-3161-9-0004 3437 ON 27-3161-9-0004 6737