Service difficulty report · Skin · Boeing 75733N

Difficulty date
August 9, 2025
Submitted
August 11, 2025
Operation
Air carrier
Aircraft
N77865
Make and model
Boeing 75733N
Aircraft serial
32589
Aircraft time
71,995 hours, 21,353 cycles
Part
Skin
Part number
7075T6CLADSHEET0
Condition
Gouged
Location
Zone 100
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

IMPACT DAMAGE TO SKIN WITH MULTIPLE DEEP SCRATCHES & GOUGES, JUST BELOW & AFT OF AFT CARGO DOOR, BETWEEN S27R & 28R RUNNING FROM APPROX 6" FWD OF FRAME 1460 TO APPROX 10" AFT OF FRAME 1500.AFTER INITIAL EVALUATION DAMAGE IS 55 INCHES LONG. SOME OF THE GOUGES ARE .015 DEEP ONE MEASURES .017. REF SRM 53-60-01 DAMAGE UPDATE STA.1455-1460 BETWEEN STR. 26R AND 28R , 9EA MAX DEPTH .015 WITH A RANGE OF .006-.015. STA. 1460-1480 ,23EA MAX DEPTH .015 WITH A RANGE OF .002-.015 . STA. 1480-1500 ,10EA MAX DEPTH .015 WITH A RANGE OF 002- .015. STA 1500-1512 , 7EA MAX DEPTH .021 WITH A RANGE OF .001-.021. ALL DAMAGE IS LOCATED BETWEEN STR. 26R TO 28R. BS 1455-1512. REF SRM 53-60-01-01-1 FIG 1. ACOMPLISHED STEPS 1-5 OF AVO15248, PERFORMED HFEC OF BLENDED SKIN AND HFEC ROTARY SCAN OF REMOVED FASTNERS IAW AVO 15248. NO DEFECTS NOTED, ACCOMPLISHED AVO NDT REQUIREMENTS IAW STEP 4 A,A, 4. ECRA 5360-01996 HAVE BEEN COMPLETED.

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