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SDR ASAA2025060358836

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Service difficulty report · Transition Panel · Boeing 737990ER

FAA SDR system

Difficulty date
June 3, 2025
Submitted
June 19, 2025
Operation
Air carrier
Aircraft
N461AS
Make and model
Boeing 737990ER
Aircraft serial
36363
Aircraft time
42,008 hours, 13,036 cycles
System (JASC)
5320 · Fuselage Miscellaneous Structure
Part
Transition Panel
Part number
BAC1496444
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

FWD CARGO FLOOR BETWEEN STA 500D AND 500L, LEFT TRANSITION PANEL CORRODED NUMEROUS PLACES. GROUNDED - YES. REMOVED CORROSION AT L/H TRANSITION PNL STA 500D-500L. FOUND TO BE OUT OF LIMITS. MAT 100% LOSS IAW B737-900 SRM 53-00-53-1A-2. VERIFY RECEIVED NEW TRANSITION PNL P/N#BAC 1496-444 7075-T62C IAW B737-900 SRM 53-30-53-01-2. FABRICATED NEW TRANSITION PNL AND SPLICE IAW B737-900 53-00-53-2R-5. ALODINED AND PRIMED IAW B737-900 SRM 51-20-01. INSTALLED NEW TRANSITION PNL AND SPLICE IAW B737-900 SRM 51-40-02.