Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
June 9, 2025
Submitted
June 23, 2025
Operation
Air carrier
Aircraft
N461AS
Make and model
Boeing 737990ER
Aircraft serial
36363
Aircraft time
42,008 hours, 13,036 cycles
Part
Transition Panel
Part number
146A750242
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

RIGHT SIDE AFT CARGO COMPARTMENT TRANSITION PANEL HAS CORROSION AREAS FOUND BETWEEN BS 727I+8 AND BS 767 GROUNDED - YES. EVALUATED AFT PIT R/H TRANSITION PANEL FROM STA 727I+8 TO STA 767 ORIG: .040, REMOVED .016, REMAINING .024 AND IS FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-00-53-1A-1 & SRM 53-00-53-OI-2. TOOL#T8224V DUE:31/MAR/26. REMOVED & INSTALLED IAW B737-900 SRM 53-00-53-2R-5. NEW AFT PIT R/H TRANSITION PANEL WAS REPAIRED IAW B737-900 SRM 53-00-53-2R-5..