Service difficulty report · Transition Panel · Boeing 737924ER

Difficulty date
February 4, 2026
Submitted
February 9, 2026
Operation
Air carrier
Aircraft
N37437
Make and model
Boeing 737924ER
Aircraft serial
33532
Aircraft time
51,947 hours, 18,550 cycles
Part
Transition Panel
Part number
143A7501189
Condition
Corroded
Location
Zone 100
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

B737-MP-20FW-53-820-00: FWD CARGO COMPARTMENT L/H TRANSITION PANEL FROM STA 500C+15 TO 500L LBL 21.0 IS CORRODED. TRANSCRIBED FROM AAR GSO NON-ROUTINE 9286411 THE CORRODED AREA ON TRANSITION PNL FROM STA 500C+15 TO 500K LBL 21 FOUND TO BE 100% MATERIAL LOSS IN MULTIPLE AREAS IAW ER SRM 53-00-53-1A-2 FIG 103, REMOVED DAMAGE TRANSITION PNL FROM FWD CARGO STA 500C+15 TO STA 500J+10 LBL21 IAW SRM 51-40-02 MATERIAL ID FOR NEW TRANSITION PNL AND NEW SPLICE IS PN BAC 1496-444 7075 T6 EXTRUSION PO: 1138312.1 IAW B737-900ER 53- 00-53-2R-5 TABLE 201, TRIMED AND LOCATED+DRILLED 1EA TRANSITION PNL AND 1EA SPLICE IAW SRM 53-00-53-2R-5 AND IAW B737-900ER SRM 51-40-05, ALODINED AND PRIMED 1EA TRANSITION PNL AND 1EA SPLICE IAW SRM 51-20-01, INSTALLED 1EA TRANSITION PNL AT FWD CARGO STA 500C+15 TO STA 500J+10 LBL 21 AND INSTALLED 1EA SPLICE AT FWD CARGO STA 500K TO 500J LBL 21 IAW SRM 53-00-53-2R-5 AND IAW B737-900ER SRM 51-40-02 INSTALLED NUTPLATES ON TRANSITION PNL AND SPLICE AND CURE TIME COMPLETED 24HRS IAW BAC DWG #140N4500 REMOVED DOT #X905