SDR USAA960446

Service difficulty report · Support Beam · Boeing 7374B7

Difficulty date: May 21, 1996
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N428US
Make and model: Boeing 7374B7
Aircraft serial: 24550
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support Beam
Condition: Corrosion
Location: Bs 270
Part time: 19,542 hours
Stage of operation: IN
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

INT - DURING Q-4 CHECK VISUAL INSPECTION, FOUND APPROX 1 INCH BY 1 INCH OF SURFACE CORROSION STATION 270 AT RBL 11, WL 208, COCKPIT ENTRANCE FLOOR SUPPORT BEAM. CUT OUT AFFECTED AREA AND INSTALLED DOUBLER REPAIR. REPAIRED PER SRM 51-70-12. CORROSION TASK NR C53-107-02, CORROSION LEVEL 2. (M)

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