SDR FDEA201106012071

Service difficulty report · Longeron · Doug MD11F

Difficulty date: June 1, 2011
Submitted: June 1, 2011
Operation: Air carrier
Aircraft: N645FE
Make and model: Doug MD11F
Aircraft serial: 48446
Aircraft time: 73,567 hours, 12,217 cycles
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Longeron
Part number: ACA3017513
Condition: Chafed
Location: Bs 575-595
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

LONGERON 24R BETWEEN FRAME 575 AND 595 CHAFED. LONGERON BLENDED, FOUND WITHIN LIMIT IAW SRM 53-00-00, FIG 205, REV 46. HFEC INSP CARRIED OUT ON REWORKED AREA FOUND CRACK APPROX 0.75". LONGERON FABRICATED IAW DWG ACA3017 REV 'L'. FPI CARRIED OUT ON NEW FABRICATED LONGERON FOUND NO CRACK. LONGERON HEAT TREATED, & INSTALLED. REPAIR CLASSIFIED AS MAJOR IAW GMM6-2-100, REV 112.

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