Service difficulty report · Transition Panel · Boeing 737790

Difficulty date
December 14, 2015
Submitted
December 30, 2015
Operation
Air carrier
Aircraft
N626AS
Make and model
Boeing 737790
Aircraft serial
30793
Aircraft time
50,452 hours, 22,479 cycles
Part
Transition Panel
Part number
146A7502
Condition
Corroded
Location
Bs 727-747
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 LT TRANSITION PANEL FROM BS 727 TO 787 HAS CORROSION NUMEROUS SPOTS. ACFT GROUNDED. REMOVED CORROSION ON AFT PIT LT TRANSITION PANEL IAW SRM 51-10-02. FROM BS 727- BS 747 ORIGINAL THICKNESS IS .040, REMOVED .010, REMAINING THICKNESS IS .030 OUT OF LIMITS. R & R DAMAGED SECTION IAW SRM 53-00-53-2R-5 FROM BS 747-BS 787, ORIGINAL THICKNESS IS .040, REMOVED .002, REMAINING .038 FOUND TO BE IN LIMITS IAW SRM 53-00-53. ALODINED & PRIMED IAW SRM 51-20-01 & TOPCOAT IAW AMM 51-21-74 APPLIED CIC IAW SOPM 20-41-02.