Service difficulty report · Web · Boeing 737990ER

Difficulty date
June 5, 2025
Submitted
June 19, 2025
Operation
Air carrier
Aircraft
N461AS
Make and model
Boeing 737990ER
Aircraft serial
36363
Aircraft time
42,008 hours, 13,036 cycles
Part
Web
Part number
147A5116U20
Condition
Corroded
Location
Zone 200
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 WET AREA FLOOR WEB STA 986-1006 RBL 24-45 HAS CORROSION. GROUNDED - YES. REMOVED DAMAGE IAW B737-900ER SRM 51-10-02, ORIGINAL THICKNESS .080, MAT REMAINING .039 PER BAC DWG# 147A5116-19 REV A FOUND OUT OF LIMITS DUE TO NOT ALLOWABLE DAMAGE LIMITS GIVEN ON SRM, REMOVED WEB IAW B737-900ER SRM 51-40-02, LOCATED & DRILLED & COUNTERSUNK NEW WEB P/N 147A5116U20 P.O. 1124266.1 PER BAC DWG# 147A5701 REV- AND IAW B737-900ER SRM 51-40-05, SRM 51-40-08, INSTALLED GALLEY MOUNTS AND FLOOR WEB PER BAC DWG# 147A5701 REV- AND IAW B737-900ER SRM 51-40-02, SRM 51-40-04.