SDR SWAA2025031704309

Service difficulty report · Doubler · Boeing 73779P

Difficulty date: March 12, 2025
Submitted: May 5, 2025
Operation: Air carrier
Aircraft: N7820L
Make and model: Boeing 73779P
Aircraft serial: 28253
Aircraft time: 63,660 hours, 40,771 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Doubler
Condition: Bulged
Location: Zn 100 Fus Lower
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

SUPPLEMENTAL INFORMATION: RING AROUND TOILET SERVICE PANEL ON AFT FUSELAGE HAS BULGE ON LOWER AFT CORNER. REMOVED 1 EA FASTENER AT LWR AFT CORNER OF TOILET SERVICE PANEL TO FACILITATE INSPECTION PER SRM 51-40-02. REPIRED REF EA# 25-153-00638, C/W E/A 25-153-00638, C/W E/A 25-153-00638.

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