Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
October 16, 2018
Submitted
November 1, 2018
Operation
Air carrier
Aircraft
N423AS
Make and model
Boeing 737990ER
Aircraft serial
35206
Aircraft time
21,888 hours, 7,230 cycles
Part
Transition Panel
Part number
146A750236
Condition
Corroded
Location
Fuselage
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 CARGO COMPARTMENT, RIGHT SIDE FLOOR TO SIDEWALL TRANSITION PANEL HAS APPROX 29 SPOTS OF CORROSION ON UPPER SURFACE BETWEEN STATIONS 727 AND STATION 727I +8. GROUNDED - YES. AREA FROM STA 727(+10 TO STA 727) +8 FOUND TO BE OUT OF LIMITS IAW SRM 53-60-53-01-2.0 ORG MAT .040 MAT LOSS .030. REMAINING THICKNESS IS .010. REMOVED DAMAGED SECTION FROM STA 727C TO 10 TO 7271+8 IAW 51-40-02. FABRICATED NEW PANEL FROM STA 737C+10-7271+8 IAW 51-20-01. PRIMED IAW SOPM 20-41-02 AND INSTALLED NEW TRANSITION PANEL FROM STA 727C + 10 TO 7271+01 IAW DWG 146A7500 REV C SHEET 0037 AND SRM 51-40-02.