Service difficulty report · Keelbeam · Boeing 737790

Difficulty date
October 15, 2017
Submitted
February 3, 2022
Operation
Air carrier
Aircraft
N562WN
Make and model
Boeing 737790
Aircraft serial
30778
Aircraft time
54,882 hours, 25,795 cycles
Part
Keelbeam
Condition
Corroded
Location
Aft Cargo Bay
Stage of operation
IN
How discovered
9
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 BAY) CORROSION ON KEEL BEAM SPLICE AND AFT FASTENER; BS 727+6; LBL6; WL156 / CORROSION ON KEEL BEAM AND AFT FASTENER BS 727+6; LBL 6; WL 156. REMOVED CORROSION WEB 1.5' X 1.0' X 0.002. ORIGINAL THICKNESS 0.071' AND STRAP 1.0' X 1.0' X .005' ORIGINAL THICKNESS 0.125' NO ESTABLISH LIMITS GIVEN IN SRM 53-00-12-1A-1 FOR SECTION 46. REPAIRED PER ATS ER 17-04637 REV IR; AND SWA EA 1-753-31886 REV IR