Service difficulty report · Warning Message · Boeing 7878

Difficulty date
July 22, 2026
Submitted
July 28, 2026
Operation
Air carrier
Aircraft
N784AV
Make and model
Boeing 7878
Aircraft serial
37506
Aircraft time
39,272 hours, 5,149 cycles
Engine
Rroyce TRENT1000A
Engine time
34,997 hours, 4,274 cycles
Part
Warning Message
Condition
Illuminated
Location
Spoiler Sys
Stage of operation
CR
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

DURING FLIGHT APPEARED SPOILERS ON ECAM SPOILER NR 5. FAULT CODE 276 107 00, MAINTENANCE MESSAGES 27-17754/27-27-12371 DMC-B787-A-27-60-F1-DPA-421A-A & DMC-B787-A-27-60-F1-82A-421A-A PERFORM: STEP 1. DID A WIRING CHECK BETWEEN THESE PINS OF CONNECTOR DM2761105P05 AT THE SPOILER 5 ELECTRIC MOTOR CONTROL UNIT & PINS OF CONNECTOR DE2702003P03B AT THE LT FLIGHT CONTROLS ELECTRONICS CABINET (WDM 27-61-15 SPOILER CONTROL - FCE L): DM2761105P05/DE2702003P03B, PIN 25, PIN 16, PIN 32, PIN 17 WIRING CHECK BETWEEN THESE PINS OF CONNECTOR DM2761205P01 AT SPOILER 5 POSITION SENSOR AND THESE PINS OF CONNECTOR DM2761105P05 AT THE SPOILER 5 ELECTRIC MOTOR CONTROL UNIT (WDM 27-61-15 SPOILER CONTROL - FCE L): DM2761205P01/DM2761105P05 PIN 1, PIN 45, PIN 2, PIN 46, PIN 3, PIN 39, PIN 4, PIN 38, PIN 5, PIN 52, PIN 6, PIN 51, WIRING CHECK BETWEEN THESE PINS OF CONNECTOR DM2761005P01 AT THE SPOILER 5 ELECTRIC ACTUATOR AND THESE PINS OF CONNECTOR DM2761105P05 AT THE SPOILER 5 ELECTRIC MOTOR CONTROL UNIT (WDM 27-61-15 SPOILER CONTROL - FCE L): DM2761005P01/DM2761105P05 PIN 1 ----- PIN 42 PIN 2 ----- PIN 48 PIN 3 ----- PIN 43 PIN 4 ----- PIN 49 PIN 5 ----- PIN 53 STEP 4. DO A WIRING CHECK BETWEEN THESE PINS OF CONNECTOR DM2761005P02 AT THE SPOILER 5 ELECTRIC ACTUATOR AND THESE PINS OF CONNECTOR DM2761105P04 AT THE SPOILER 5 ELECTRIC MOTOR CONTROL UNIT (WDM 27-61-15 SPOILER CONTROL - FCE L): DM2761005P02/DM2761105P04 PIN 1 ----- PIN 1 PIN 2 ----- PIN 2 STEP 4. IF YOU FIND A PROBLEM WITH THE WIRING, THEN DO THESE STEPS: REPAIR THE WIRING. STEP 5. DO A DETAILED VISUAL INSPECTION OF THE SPOILER 5 POSITION SENSOR, M2761205 AND ITS DAMPER, MECHANICAL LINKAGE, AND BRACKET. THIS IS THE TASK: SPOILER RESOLVER, CRANK ARM, AND ROD - INSTALLATION, AMM B787-A-27-61-20-00A-720A-A. REPORT BACK ANY FINDINGS WITH PHOTOS OR VIDEOS

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