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SDR ASAA2021092036022

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Service difficulty report · Computer · Boeing 737890

FAA SDR system

Difficulty date
September 20, 2021
Submitted
October 5, 2021
Operation
Air carrier
Aircraft
N513AS
Make and model
Boeing 737890
Aircraft serial
35192
Aircraft time
46,498 hours, 13,742 cycles
System (JASC)
3460 · Flight Management Computing Hardware System
Part
Computer
Part number
1762000101
Part serial
009169
Condition
Faulted
Location
E/E Shelf E-2
Part time
18,821 hours, 9,806 cycles
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

PER INTERMITTENT HISTORY ON R/H FMC VTK ERROR AND FMC DISGAREE. PRI#2. GROUNDED - YES. REMOVED AND REPLACED R/H FMC COMPUTER REF B737-800 AMM 34-61-02/401. CROSSLOADED S/W P/N'S OPS-559775-001, OPC-BCG01T62, MEDB-BCG01TA0, LDDB-557362-004, ADDB-ASA1007A, AND NDB-ASA1210901 FROM L/H FMC REF AMM 34-61-00-710-806 AND B737-800 AIPC 34-61-02. PERFORMANCE FACTORS ADJUSTED REF AMM 34-61-00-800-801, OPS TEST PASS. ETOPS GROUND VERIFICATION SUCCESSFUL.