Service difficulty report · Web · Boeing 7377H4

Difficulty date
November 26, 2018
Submitted
February 25, 2022
Operation
Air carrier
Aircraft
N725SW
Make and model
Boeing 7377H4
Aircraft serial
27857
Aircraft time
69,621 hours, 40,909 cycles
System (JASC)
5711 · Wing Spar
Part
Web
Condition
Corroded
Location
Left Wing
Stage of operation
IN
How discovered
9
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

PRIORITY LEVEL 1: L/H WING; REAR SPAR WEB; TANK 1 AFT BOOST PUMP LOCATION; CORROSION FOUND AT LOWER BONDING JUMPER ATTACH POINT. MARKED IN RED. / REMOVED CORROSION ON L/H WING REAR SPAR WEB LOWER BOOST PUMP ATTACH POINT; VERIFIED MATERIAL LOSS; ORIGINAL MATERIAL IS .680. REMAINING IS .572 LOSS OF .108. OUT OF LIMITS IAW SRM 57-20-10-1A-3. REPARIED IAW AAR EA 180668 IR AND SWA EA 1-757-15739 REV IR.

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