Service difficulty report · Web · Boeing 737*

Difficulty date
November 14, 2021
Submitted
November 18, 2021
Operation
Air carrier
Aircraft
N562WN
Make and model
Boeing 737*
Aircraft serial
30778
Aircraft time
65,978 hours, 32,511 cycles
Part
Web
Condition
Corroded
Location
L/H 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

CORROSION FRONT SPAR WEB LOC. FUEL BOOST PUMP AREA L: 1.25 IN; W: 0.50 IN IFSS 120 APROX AND WBL 88.24 APROX AT LT WING. EVALUATED REWORKED AREA LOCATED FRONT SPAR WEB FUEL BOOST PUMP UPPER AREA IFSS 120 APROX AND WBL 88.24 APROX AT LT WING AND FOUND WITHIN LIMITS IAW B737-700 SRM 57-20-10-1A-3 PARAGRAPH 5.D TABLE 101. MAXIMUM DAMAGE DEPTH : 0.119INCH HOLE AREA LOSS: 0.0299 INCH INITIAL AREA LOSS: 0.212 INCH AND FINAL AREA LOSS: 0.183 INCH. PERFORMED FUEL LEAK CHECK ON REPAIR AREA FRONT SPAR WEB LOC. FUEL BOOST PUMP AREA IFSS 120 APPROX AND WBL 88.24 APROX AT LT WING AND NO LEAK FOUND I.A.W. A.M.M. 28-11-00-400-801.