Service difficulty report · Transition Panel · Boeing 737990

Difficulty date
January 31, 2019
Submitted
February 20, 2019
Operation
Air carrier
Aircraft
N317AS
Make and model
Boeing 737990
Aircraft serial
30856
Aircraft time
55,713 hours, 22,076 cycles
Part
Transition Panel
Part number
146A7502
Condition
Corroded
Location
Fuselage
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 COMPT LT FLOOR TRANSITION PANEL HAS MISSING CLICK BOND NUTPLATES AND CORROSION BETWEEN STA 727L-747. GROUNDED - YES. REMOVED CORROSION IN AFT CARGO COMPT LT FLOOR TRANSITION PANEL FROM STA 727K- STA 747. ORIGINAL THICKNESS IS .040, REMOVED .010, REMAINING THICKNESS IS .030. OUT OF LIMITS IAW SRM 53-60-53. REPAIRED TRANSITION PANEL FROM STA 727K TO STA 747+8 IAW SRM 53-00-53-2R-6. INSTALLED NUT PLATES IAW BAC DWG 140N4500.