Service difficulty report · Longeron · Doug MD11F

Difficulty date
October 23, 2008
Submitted
November 13, 2008
Operation
Air carrier
Aircraft
N578FE
Make and model
Doug MD11F
Aircraft serial
48458
Aircraft time
47,916 hours, 12,664 cycles
Part
Longeron
Part number
AFA77751
Condition
Corroded
Location
Zone 100
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

CENTER CARGO BETWEEN LT STA 5-123 TO 1541 LONGERON 48 HAS CORROSION. REMOVED AND FOUND EXCEED LIMITS AS PER SRM 53-00-01 FIGURE 4 VOLUME I. ORIGINAL THICKNESS = 0.130", MATERIAL REMOVED = 0.060 INCH, MATERIAL REMAINING = 0.070 INCH, LONGERON FABRICATED AS PER DRAWING NR AFA7755, LONGERON 48 LEFT CARRIED REPAIR AS PER SRM 53-10-00 FIGURE 2 VOLUME I AND SRM 51-33-01 VOLUME II. FABRICATED LONGERON 48 LEFT FROM STA 5-123 TO 1541 REMOVED AND REPLACED AS PER SRM 53-10-00 FIGURE 2 VOLUME I AND SRM 51-33-01 VOLUME II. THIS REPAIR CLASSIFIED AS MAJOR AS PER GMM 6-2-100.

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