SDR ASAA2015103013685

Service difficulty report · Floor Support · Boeing 737790

Difficulty date: October 30, 2015
Submitted: November 10, 2015
Operation: Air carrier
Aircraft: N615AS
Make and model: Boeing 737790
Aircraft serial: 30344
Aircraft time: 53,277 hours, 24,015 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 147A5710U17
Condition: Corroded
Location: Bs 992-1016
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 FUSELAGE WET AREA, BS 1006, RBL 31 HAS CORROSION. ACFT GROUNDED. REMOVED FLOOR SUPPORT IAW SRM 51-40-02. REMOVED CORROSION ORIGINAL MATERIAL THICKNESS .050 MATERAIL LOSS .008, MATERIAL REMAINING .042" FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51, LOCATED AND DRILLED NEW SUPPORT, PN 147A5710U17 AND INSTALLED IAW SRM 51-40-02.