SDR ASAA12511410

Service difficulty report · Fmc · Boeing 737890

Difficulty date: April 15, 2012
Submitted: April 17, 2012
Operation: Air carrier
Aircraft: N537AS
Make and model: Boeing 737890
Aircraft serial: 35204
Aircraft time: 749 hours, 262 cycles
Engine: Cfmint CFM567B27
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Location: Right
Stage of operation: NR
How discovered: O
Nature of condition: P
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RIGHT FMC FAILED IN FLIGHT. SINGLE FMC OPERATION MESSAGE VTK AND MAP ANNUNCIATOR IN F/O ND. FMC FAIL ABNORMAL CHECKLISH IN QRH COMPLIED WITH DUAL FMC OPS NOT RESTORED. GROUNDED. RERACKED RT FMCS COMPUTER IAW AMM 34-61-02 "FMCS COMPUTER 2" CIRCUIT BREAKER WAS PULLED AND WAS PUSHED BACK IN. AFTER RERACK OF COMPUTER RESTORED SYS POWER TO RT FMCS. COMPUTER AND GROUND FUNCTIONAL CHECK PASSED IAW AMM 34-61-00-710-801.