SDR ASAA2015061112189

Service difficulty report · Web · Boeing 7374Q8

Difficulty date: June 11, 2015
Submitted: June 25, 2015
Operation: Air carrier
Aircraft: N763AS
Make and model: Boeing 7374Q8
Aircraft serial: 25100
Aircraft time: 68,143 hours, 45,245 cycles
System (JASC): 5720 · Wing Miscellaneous Structure
Part: Web
Part number: 654543920
Condition: Corroded
Location: Bs 570-637
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

AFTER REMOVAL OF RT RAM AIR DUCT, FOUND CORROSION ON CENTER WING BOX RT SUPPORT BEAM WEB. ACFT GROUNDED. REPAIRED UNDERWING LONGITUDINAL BEAM, WEB BS 576-585 AND BS 637, RBL 40.875 IAW EA 400, 53EA 15279 AND 400, 53EA 15288, W 3, O .060, R .015, L 16.0, D .045.

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