SDR ASAA2015041311393

Service difficulty report · Channel · Boeing 737890

Difficulty date: April 13, 2015
Submitted: April 21, 2015
Operation: Air carrier
Aircraft: N579AS
Make and model: Boeing 737890
Aircraft serial: 35187
Aircraft time: 31,185 hours, 9,326 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Channel
Part number: 146A750231
Condition: Corroded
Location: Bs 727g-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

AFT CARGO COMPARTMENT, LT SIDEPLATE CHANNEL HAS CORROSION STA 727G+10 TO STA 727I+10. ACFT GROUNDED. REMOVED CORROSION AND FOUND BEYOND ALLOWABLE LIMITS, 10 PERCENT THICKNESS MAX, IAW SRM 53-00-53-1A-2, ORIGINAL MATERIAL THICKNESS 0.040", REMAINING THICKNESS 0.034", THICKNESS REMOVED IS 0.006". REMOVED DAMAGED SECTION, FABRICATED AND INSTALLED SPLICE REPAIR IAW SRM 53-00-53-2R-5.