Service difficulty report · Transition Panel · Boeing 737823

Difficulty date
September 16, 2020
Submitted
September 30, 2020
Operation
Air carrier
Aircraft
N809NN
Make and model
Boeing 737823
Aircraft serial
33519
Aircraft time
33,957 hours, 13,680 cycles
Part
Transition Panel
Condition
Corroded
Location
Bs 495-500a
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

AIRCRAFT IN BASE MAINTENANCE: CORROSION OF RT TRANSITION PANEL IN FWD CARGO COMPARTMENT BETWEEN STA 495 AND STA 500A AT RBL 26, MEASURING L=1.0 IN, W=2.0 IN, D=0.011 IN. ACCOMPLISHED PERMANENT REPAIR BY REMOVING CORROSION, IAW SRM 53-30-53. ENGINEERING REVIEWED THIS EVENT AND DETERMINED THE CORRECT LEVEL WAS LEVEL 1 NOT LEVEL 2. SECTION 7 CORROSION LEVEL FIELD WAS CORRECTED ACCORDINGLY.