Service difficulty report · Skin · Boeing 7879

Difficulty date
June 17, 2023
Submitted
June 22, 2023
Operation
Air carrier
Aircraft
N29977
Make and model
Boeing 7879
Aircraft serial
66136
Aircraft time
13,767 hours, 1,472 cycles
Part
Skin
Part number
NA
Condition
Scratched
Location
Sta2064-2105
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

SCRATCH AT AFT FUSELAGE SECTION 48AFT BETWEEN STA 2064.5 TO 2105.5 STRINGERS BETWEEN S23R TO S28R AREA L 46" X W 1/2" X Y0,056" APPROX. L 46? X W 1/2? MAX. A 3? SECTION OF THE SCRATCH HAS DAMAGES IDENTIFIED AND NO VISIBLE MOISTURE. CLEANED SURFACE AND FIBER DAMAGE, REPORTED AS Y 0.056? MAX. AT STA 2083. NO HIDDEN COVERED WITH ALUMINUM FOIL SPEED TAPE. FOLLOW ECRA 5380-01358 INTERIM REPAIR - PART #1 OF SEC FUS SKIN STA 2064 ? 2105, FROM S-23R TO S-28R, SUPERFICIAL SCRATCH, ADD EMP:U377763, U369353 ENSURE NO HIDDEN DAMAGES ENSURE NO VISIBLE MOISTURE, CLEAN TOMC-APPROVAL FROM SC1ELBYC COMMENT SURFACES, AND COVER WITH ALUMINUM FOIL SPEED TAPE (3M-435). PER ECRA 5380-01358 PERFORM PART 3 PERMANENT REPAIR AFTER 1 FLIGHT CYCLE, NOT TO EXCEED 1,472 TOTAL AIRFRAME FLIGHT CYCLES PHOTO ALONG L = 46", THE DEEPEST POINT IS D = 0.056" PER L = 3" FWD QC AND 1"AFT. ALL OTHER SECTION THERE IS ONLY PAINT MISSING (SCRATCH). PIC ADDED.PARTS USED: 29-2550-3-0055,QTY :1 MAP OUT OF DAMAGED AREA FOR ENGINEERING. RECORDS UPDATE C/W STEP 1.A. PERFORM DETAIL INSPECTION OF INTERNAL SKIN, C/W AVO10620 STEP 1. (A) B. 787 NDT PART 4 51-00-06. SEE LP FASTENERS AND SURROUNDING STRUCTURE. 4244305 FOR FINDINGS. ADDED PICTURE TOMCQC REV PERFORMED APPLIED INTERMEDIATE & TOPCOAT OF REPAIRED AREA REF SRM B787-A-5 3-80-01-02A-661A-A WORKED PERFORMED BY U167841/241913/355536. SEC 48 FUSELAGE SKIN GOUGES AT ROUGHLY STA 1897-STA2105, S29-R- S-37R PERMANENT REPAIR ACCOMPLISHED BY BOEING AOG TEAM ALL WORK PERFO

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