Service difficulty report · Web · Boeing 737990ER

Difficulty date
June 8, 2025
Submitted
July 10, 2025
Operation
Air carrier
Aircraft
N263AK
Make and model
Boeing 737990ER
Aircraft serial
62471
Aircraft time
31,242 hours, 10,172 cycles
Part
Web
Part number
654A000358
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

FWD CARGO DOOR THRESHOLD HAS CORROSION MARKED IN RED. GROUNDED - YES. REMOVED LOWER SILL PLATE, BLENDED AREA ORIGINAL THICKNESS .050, MAT LOSS .017, NEW THICKNESS .033 AREA OUT OF LIMITS PER B737-900 SRM 53-00-01-1A-6. REMOVED DAMAGED WEB AND INSTALLED P# 654A0003-58 PER B737-900 SRM 51-40-05, SRM 51-40-02 AND BDWG 143A8330 REV A AND BDWG 143A8122 REV D REF NRC G2184705 FOR LOWER SILL PLATE INSTALL PO#1126440.1.