Service difficulty report · Flaperon · Boeing 7879

Difficulty date
August 2, 2021
Submitted
October 27, 2021
Operation
Air carrier
Aircraft
N438AM
Make and model
Boeing 7879
Aircraft serial
43862
Aircraft time
19,504 hours, 2,271 cycles
Part
Flaperon
Part number
136Z00015026
Part serial
000576
Condition
Damaged
Location
Right
Part time
19,515 hours, 2,272 cycles
Stage of operation
IN
How discovered
V
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

DURING TRANSIT CHECK, IT WAS DETECTED A SEVERAL LIGHTNING STRIKES ON RH WING FLAPERON TRAILING EDGE. MAINTENANCE PERSONNEL PERFORMED A LIGHTNING STRIKE CONDITIONAL INSPECTION PHASE 1A, LEVEL EXAMINATION AND PHASE 1B AND II, GENERAL VISUAL INSPECTION AND SYSTEM COMPONENTS IAW AMM DMC-B-787-A-05-51-19-00A-311A-A, DETECTING SEVERAL LIGHTNING STRIKES ON RH WING FLAPERON TRAILING EDGE; ON RIGHT ENGINE OUTBD SLEEVE THRUST REVERSER TRAILING EDGE. THE WO´S 7685626, 7685628, 7685756, 7685758 AND 7685766 WERE ISSUED TO REPAIR THE DAMAGES DETECTED; RH WING FLAPERON WAS REPLACED IAW AMM DMC-B787-A-27-11-24-00A-520A-A/720A-A; RH WING FLAPERON TORQUE´S WERE PERFORMED IAW DMC-B-787-A-27-11-24-00A-720A-A AND RH WING FLAPERON RIGGING TEST WAS PERFORMED IAW DMC B-787-A-27-11-00-14A-270B-A; THE SURFACE FINISH WAS REMOVED IAW B787-A-51-130-02-01A-280A-A; A PERMANENT SEAL WAS PERFORMED IAW B787-A-54-31-01-02B-661A-A, PARAGRAPH 2.K.2; A ULTRASONIC INSPECTION AND DEPTH MEASUREMENT ON DAMAGED AREAS WERE PERFORMED IAW B787 NDTM PART 4, 51, 00-03 AND SRM B787-A-54-31-01-02B-661A-A, TABLE 4, ALL CORRECT.

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