SDR ASAA2016032116287

Service difficulty report · Floorbeam · Boeing 737990

Difficulty date: March 21, 2016
Submitted: April 11, 2016
Operation: Air carrier
Aircraft: N320AS
Make and model: Boeing 737990
Aircraft serial: 33680
Aircraft time: 45,793 hours, 17,529 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Part number: 146A94018
Condition: Corroded
Location: Bs 727i
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

PARTS RACK AFT CARGO COMPARTMENT, FLOOR PANEL SUPPORT TEE ASSY AT BS 727I+5 IS CORRODED, EXFOLIATED. ACFT GROUNDED. REMOVED CORROSION ON AFT CARGO FLOOR SUPPORT TEE ASSY IAW SRM 53-00-53-1A-2, ORIGINAL MATERIAL .070", MATERIAL LOSS .020" REMAINING MATERIAL .050" OUT OF LIMITS IAW SRM 53-00-53-1A-2, TOOL T8225S REPLACED TEE ASSY PO 863114.5 IAW SRM 51-10-02, PARA 9 INSTALLED ON ACFT WC G664006.