Service difficulty report · Structure · Boeing 737990ER

Difficulty date
August 20, 2025
Submitted
September 3, 2025
Operation
Air carrier
Aircraft
N462AS
Make and model
Boeing 737990ER
Aircraft serial
36362
Aircraft time
42,027 hours, 13,087 cycles
Part
Structure
Part number
147A571356
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

R/H INNER CHORD CORRODED BETWEEN STA 1006 TO STA 1016. GROUNDED - YES. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-70-51-1A-1. REMOVED AND REPLACED INNER CHORD IAW B737-900 SRM 51-40-02-0G-0. W= 2.00 O= .080 R= .058 L= 2.00 D= .022.