SDR FDEA200906222218

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: 143N54994
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

BS 740 TO 760, RBL 16 INTERCOSTAL CORRODED. AREA EVALUATED FOUND INTERCOSTAL WEB CORRODED. BS 740 TO BS 760, RBL 16 INTERCOSTAL WEB PN 143N5499-4 FABRICATED IAW DWG 143N5499 SHT 1, REV. INTERCOSTAL PART MARKED AS FX 143N5499-4 IAW GMM 7-0- 1001 REV 107. CORRODED INTERCOSTAL WEB REMOVED AND REPLACED IAW SRM 51-40-02 REV 97. THIS REPAIR IS CLASSIFIED AS MINOR IAW GMM 6-2-100 CRITERIA.

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