SDR ASAA2014050107863

Service difficulty report · Shear Web · Boeing 737490

Difficulty date: May 1, 2014
Submitted: May 29, 2014
Operation: Air carrier
Aircraft: N793AS
Make and model: Boeing 737490
Aircraft serial: 28888
Aircraft time: 51,490 hours, 28,957 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Shear Web
Part number: 65176859
Condition: Corroded
Location: Bs 348
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

L1 DOOR AFT LOWER DOOR FRAME SHEAR WEB IS CORRODED AROUND LOWER NUTPLATE. ACFT GROUNDED. BLENDED CORRODED AREA FOUND TO BE OUT OF LIMITS, FABRICATED LOCATED AND DRILLED NEW SHEAR WEB AFT OF L1 DOOR IAW SRM 53-15-1A-1 AND SRM 51-30-01-0G-0. W=.500, O=.040, R=.034, L= .500, D=.006.