SDR DALA1100010909

Service difficulty report · Longeron · Doug MD88

Difficulty date: January 1, 2011
Submitted: January 4, 2011
Operation: Air carrier
Aircraft: N909DL
Make and model: Doug MD88
Aircraft serial: 49540
Aircraft time: 61,568 hours, 48,134 cycles
Engine: Pwa JT8D219
System (JASC): 5313 · Fuselage Main, Longeron/Stringer
Part: Longeron
Condition: Corroded
Location: Bs 1285 L22l
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

DURING HMV4, FOUND AFT CARGO STA 1285-1308 LONG 22L HAS MAJOR CORROSION. REMOVED CORROSION FROM L22L IAW SRM 53-01, FIG 1 (.5 X 1.5) ORIGINAL MAT .125 IAW SRM 53-14-3, FIG 4 AND 51-10-1, FIG 15. REMOVED 0.075. REMAINING MAT .050. FOUND TO BE OUT OF LIMITS. REMOVED L22L, RECEIVED NEW LONG PN S12428864, TREATED IAW SRM 51-10-3 TABLE 1. INSTALLED IAW SRM 51-30-2, 51-30-5.

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