SDR U2RA2020042540001

Service difficulty report · Relay · Boeing 747428

Difficulty date: April 24, 2020
Submitted: April 26, 2020
Operation: Air carrier
Aircraft: N919CA
Make and model: Boeing 747428
Aircraft serial: 25302
Aircraft time: 98,581 hours, 14,688 cycles
Engine: Ge CF680C2B1F
System (JASC): 2750 · Trailing Edge Flap Control System
Part: Relay
Part number: BACR13CF2A
Condition: Inoperative
Location: Zone 100
Stage of operation: AP
How discovered: O
Nature of condition: F, J
Precautionary procedure: L

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

What was found

FLAPS CONTROL EICAS MESSAGE DISPLAYED ON FINAL APPROACH. PERFORMED GO AROUND, COMPLETED CHECKLIST AND LANDED WITHOUT INCIDENT. - CENTRAL MAINTENANCE COMPUTER MESSAGES 27600, 27601, AND 27602 FOUND ACTIVE, FLAP CONTROL UNIT LEFT, RIGHT, AND CENTER FAIL. REMOVED AND REPLACED RELAYS R07632 AND R07633. OPS CHECK NORMAL IN ACCORDANCE WITH AIRCRAFT MAINTENANCE MANUAL 27-51-00. EICAS MESSAGES CLEARED.