Service difficulty report · Transition Panel · Boeing 737990ER

Difficulty date
November 18, 2024
Submitted
December 17, 2024
Operation
Air carrier
Aircraft
N435AS
Make and model
Boeing 737990ER
Aircraft serial
43292
Aircraft time
39,942 hours, 12,478 cycles
Part
Transition Panel
Part number
146A7502
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

AFT CARGO R/H TRANSITION PANEL HAS CORROSION FROM STA 727I TO 767. GROUNDED - YES. REMOVED CORR. FROM AFT CARGO RH TRANS. PNL STA 727I TO 767 I.A.W. B737-900 SRM 53-00-53. ORIG THICKNESS .040 I.A.W. B737-900 SRM 53-60-53. MAT LOSSED .010 REMAINING THICKNESS .030 FOUND TO BE OUT OF LIMITS I.A.W. B737-900 SRM 53-00-53 TOOL# T8224V AND T8224FF DUE DATE 27/MAR/25. REMOVED AND REPLACED WITH NEW TRANSITION PNL AND SPLICES I.A.W. B737-900 SRM 53-00-53.ALODINED I.A.W B737-900 SRM 53-00-53, PRIMED I.A.W B737-900 SRM 53-00-53 LOCATED, DRILLED, COUNTERSUNKED, AND DEBURED NEW TRANS. PNL AND SPLICES I.A.W. B737-900 SRM 51-40-05.