Service difficulty report · Stiffener · Boeing 7378

Difficulty date
July 31, 2026
Submitted
September 3, 2026
Operation
Air carrier
Aircraft
N8709Q
Make and model
Boeing 7378
Aircraft serial
42563
Aircraft time
22,194 hours, 10,453 cycles
Part
Stiffener
Condition
Corroded
Location
Zone 500 Slat
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

LEFT WING NR 4 SLAT TAI TELESCOPING DUCT OTBD SUPPORT STIFFENER HAD CORROSION, FSS 307. R & R LT WING NR 4 SLAT TAI TELESCOPING DUCT OTBD SUPPORT STIFFENER BS 307 IAW SRM 51-40-02-0G-0 AND DWG 116A5300.

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