Service difficulty report · Support Angle · Boeing 737990ER

Difficulty date
February 13, 2026
Submitted
February 23, 2026
Operation
Air carrier
Aircraft
N251AK
Make and model
Boeing 737990ER
Aircraft serial
62470
Aircraft time
34,790 hours, 11,280 cycles
Part
Support Angle
Part number
143A948534
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 AFT BULKHEAD BS 500L RT SIDEWALL SUPPORT ANGLE CORRODED AT RBL 25. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMIT. FOUND TO BE OUT OF LIMITS IAW SRM 53-30-08. BLEND OUT EXCEEDED MINIMUM OF .056 SPECIFIED IAW SRM 53-30-08, FIG 103, DETAIL C, VIEW A-A. R & R RT BULKHEAD SUPPORT ANGLE IAW DWG 143A9485, REV-, & SRM 51-40-02. REMOVED AND REINSTALLED R/H SIDEWALL PANEL IAW AMM 25-52-06-400-801.