SDR ASAA2014051707873

Service difficulty report · Intercostal · Boeing 737990

Difficulty date: May 17, 2014
Submitted: May 22, 2014
Operation: Air carrier
Aircraft: N305AS
Make and model: Boeing 737990
Aircraft serial: 30013
Aircraft time: 47,147 hours, 18,068 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Part number: 144A822235
Condition: Corroded
Location: Bs 591
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

LEFT FWD OVERWING EMERGENCY EXIT CUTOUT LOWER SILL INTERCOSTAL UPPER SURFACE CORRODED BS 591, LBL 72, WL 221. ACFT GROUNDED. REMOVED CORROSION ORIG .080 REMAINING .076, LOSS .004 IAW SRM 53-40-15-1A-1, FIG 102, DETAIL B-B TOOL T8225M FOUND TO BE WITHIN LIMITS ALODINED AND PRIMED IAW SRM 51-20-01 PAINTED AND MARKED BLENDOUT IAW AMM 51-05-01-701. REMOVED DOT.