SDR ASAA2017032621296

Service difficulty report · Skin · Boeing 7374Q8

Difficulty date: March 26, 2017
Submitted: July 6, 2017
Operation: Air carrier
Aircraft: N760AS
Make and model: Boeing 7374Q8
Aircraft serial: 25098
Aircraft time: 75,047 hours, 43,446 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Part number: 69744471
Condition: Cracked
Location: Fuselage
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

WHILE ACCOMPLISHING T/C AD 20161004-400-53-1 SKIN CRACK FOUND AT THE FWD END OF NR 2 VHF ANTENNA. PERFORMED HFEC, MEASURED CRACK TO BE 4.5" IN LENGTH AROUND LEFT SIDE OF ANTENNA MOUNTING AREA, REF NDT MANUAL PART 6, 51-00-00 PROCEDURE 23. REMOVED DAMAGE & INSTALLED EXTERNAL DOUBLER, REF EA 400-53EA-18682 AND AD 20161004-400-53-3 83720 4/7/17.

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