SDR ASAA2023030142527

Service difficulty report · Floorbeam · Boeing 737890

Difficulty date: March 1, 2023
Submitted: March 27, 2023
Operation: Air carrier
Aircraft: N587AS
Make and model: Boeing 737890
Aircraft serial: 35684
Aircraft time: 54,488 hours, 15,876 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floorbeam
Part number: 141A550519
Condition: Corroded
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

MAIN CABIN, STA 344, LBL 10+-, CORROSION AROUND FASTENER HOLE. GROUNDED - YES. EVALUATED AND REMOVED CORROSION IAW B737-900 SRM 53-10-51-01-2 AND B737-800 SRM 53-10-51-1A-1. ORIGINAL T. .175", REMOVED .085", REMAINING .090", FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-10-51-1A-1 DETAIL C. ACCOMPLISHED T. CHORD REPAIR AS REQUIRED IAW B737-800 SRM 53-10-51-2R-10.