Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
April 25, 2019
Submitted
May 13, 2019
Operation
Air carrier
Aircraft
N442AS
Make and model
Boeing 737990ER
Aircraft serial
43293
Aircraft time
21,604 hours, 7,078 cycles
Part
Transition Panel
Part number
146A750214
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 R/H TRANSITION PANEL HAS CORROSION STA.767 TO 9" AFT STA.7271 AS MARKED GROUNDED - YES. ROUND RT TRANSITIONAL PNL OUT OF LIMITS AFTER EVALUATION. ORIGINAL THICKNESS =.045" REMOVED .006" REMAINING =.039" ALLOWABLE = .041 AT STA 7271+9 STO STA 767. REMOVED & EVAL OF CORROSION IAW SRM 53-60-53-01-2. PANEL REMOVED IAW SRM 51-40-02. RECEIVED NAT. ID BAC 1496-377 7075-T62 CLAD ; PO 883991.2; LOT 135304B4 IAW DWG 146A8127. FABD PNL IAW SRM 53-0053-2R-6, ALOIDNED & PRIMED IAW SRM 51-20-01, SOPM 20-41-02. INSTALLED PNL IAW SRM 53-00-53-2R-6. CIC APPLIED IAW SRM 53-00-53-2R-6.