SDR SWAA2022111665369

Service difficulty report · Bulkhead Web · Boeing 7377H4

Difficulty date: October 27, 2022
Submitted: November 16, 2022
Operation: Air carrier
Aircraft: N207WN
Make and model: Boeing 7377H4
Aircraft serial: 34012
Aircraft time: 56,256 hours, 33,707 cycles
System (JASC): 5312 · Fuselage Main, Bulkhead
Part: Bulkhead Web
Condition: Cracked
Location: Bs 663
Stage of operation: IN
How discovered: 9
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

BULKHEAD BS 663.75, LBL 25 I/B OF L/H A/C AIR EXIT EXHAUST DUCT DOULBER APPEAR CRACKED BELOW FASTENER HEAD. REMOVED BULKHEAD FWD VAPOR BARRIER DOUBLER IAW SRM 51-40-02-0G-0. PERFORMED HFEC INSP ON VAPOR BARRIER WEB IAW NDT PART 6, 51-00-00, PROCE 23. CRACK FOUND 0.500'. FABRICATED DOUBLER IAW DWG 111A1511. INSTALLED THE VAPOR BARRIER DOUBLER WEB IAW SRM 51-40-02-0G-0, AND DWG 111A1001.

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