Service difficulty report · Pressure Deck · Boeing 737790

Difficulty date
November 13, 2018
Submitted
December 4, 2018
Operation
Air carrier
Aircraft
N618AS
Make and model
Boeing 737790
Aircraft serial
30543
Aircraft time
59,712 hours, 28,038 cycles
Part
Pressure Deck
Part number
144A77202
Condition
Corroded
Location
Bs 685-695
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

MAIN CABIN UNDER FLOOR WHEEL WELL PRESSURE WEB HAS CORROSION NUMEROUS SPOTS BETWEEN BS 685 AND BS 695, RBL 60 AND RBL 74. GROUNDED - YES. REMOVED THE PRESSURE FLOOR WEB CLOSEOUT, PART #144A7720-02 AT STA 685-STA 695, RBL 60-RBL 70, WL 202 IAW B737-700 SRM 51-40-02. WEB CLOSEOUT FOUND TO BE OUT OF LIMITS IAW B737-700 SRM 53-40-51, NO SRM LIMITS. BOEING GRANT A SMALL, CONTROL # 0270253420, FABRICATED, LOCATED, DRILLED, DEBURRED, TREATED, PRIMED, AND INSTALLED IAW BOEING DRAWING 144A7720 REV C SHEET 1 AND DRAWING 144A7730 REV- SHEET 9. DOT N645 REMOVED.