Service difficulty report · Frame Splice · Boeing 737990ER

Difficulty date
August 26, 2025
Submitted
September 19, 2025
Operation
Air carrier
Aircraft
N471AS
Make and model
Boeing 737990ER
Aircraft serial
41703
Aircraft time
40,738 hours, 12,607 cycles
Part
Frame Splice
Part number
146A13003
Condition
Corroded
Location
Zone 100
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 COMPARTMENT RH LOWER FRAME B/N: STA 787, S-25R & S-24R HAS CORROSION. GROUNDED - YES. SPLICE HAS NO ALLOWABLE LIMITS REMOVED CORRODED SPLICE AND INSTALLED P#146A1300-3 PER B737-900ER SRM 51-40-02 AND BDWG 146A1262 REV J.