SDR ASAA2016022315776

Service difficulty report · Transition Panel · Boeing 737990

Difficulty date: February 23, 2016
Submitted: March 9, 2016
Operation: Air carrier
Aircraft: N319AS
Make and model: Boeing 737990
Aircraft serial: 33679
Aircraft time: 46,130 hours, 17,707 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
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 PIT TRANSITION PANEL AT LT BS 727J+8 TO 747+6 CORRODED IN SEVERAL SPOTS. ACFT GROUNDED. REMOVED SECTION PANEL FROM BS 727J+8 TO 747+6 IAW SRM 51-40-02 MATERIAL ID FOR FABRICATED BAC 1496-377, 7075, T62 CLAD IAW SRM 53-00-53-2R-5, PO 860620.2 FABRICATED NEW SECTION IAW SRM 53-00-523-2R-5, ALODINED AND PRIMER IAW SRM 51-20-01, INSTALLED IAW SRM 51-40-02 AND 53-00-523-2R-5, DOT H253 REMOVED.