SDR ASAA2015103113808

Service difficulty report · Floorbeam · Boeing 737790

Difficulty date: October 31, 2015
Submitted: November 19, 2015
Operation: Air carrier
Aircraft: N615AS
Make and model: Boeing 737790
Aircraft serial: 30344
Aircraft time: 53,277 hours, 24,015 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 146A94014
Condition: Corroded
Location: B 772
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

AFT CARGO COMPARTMENT FLOOR STRUCTURE, TEE STRAP AT BS772 HAS CORROSION IN SEVERAL AREAS, MARKED. ACFT GROUNDED. REMOVED CORROSION IAW SRM 51-10-02. BEYOND LIMITS IAW SRM 53-00-53, FIG 103. ORIGINAL THICKNESS WAS 0.070 WITH 0.040 REMAINING, 0.030 MATERIAL REMOVED. RECEIVED A NEW FLOOR PANEL SPLICE SUPPORT STRAP; TO BE INSTALLED ON OP 9900. PO 852057.1, REMOVED DOT.