SDR FDEA200906222211

Service difficulty report · Intercostal · Boeing 75721B

Difficulty date: June 22, 2009
Submitted: June 23, 2009
Operation: Air carrier
Aircraft: N933FD
Make and model: Boeing 75721B
Aircraft serial: 24330
Aircraft time: 52,447 hours, 30,243 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Part number: 143N536717
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

AT BS 640 TO 660, LBL 16, INTERCOSTAL CORRODED. CORROSION ON INTERCOSTAL FROM BS 640 TO BS 660 FOUND EXCEEDED SRM ALLOWABLE DAMAGE LIMITS. INTERCOSTAL REMOVED AND REPLACED IAW SRM 51-40-02 REV 97. REPAIR IS CLASSIFIED AS MINOR IAW GMM 6-2-100 CRITERIA.

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