Service difficulty report · Spar · Boeing 7377H4

Difficulty date
March 11, 2019
Submitted
March 7, 2022
Operation
Air carrier
Aircraft
N746SW
Make and model
Boeing 7377H4
Aircraft serial
29798
Aircraft time
69,717 hours, 40,989 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Corroded
Location
Lt 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

L\H WING FWD SPAR AT #2 L\E FLAP; TANK 1 BOOST PUMP; AT UPPER BONDING STRAP ATTACH POINT HAS CORROSION. / REMOVED CORROSION ON L/H WING FWD SPAR #2 L/E BOOST PUMP .485' ORIG .163' LOSS .322' REMAINING OUT OF LIMITS IAW B737 SRM 57-20-10 ALLOWABLE DAMAGE 3. REPAIRED AREA IAW EA 190195 REV P1; IR AND SWA EA 1-757-16092 REV IR

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