SDR ASAA2015073112903

Service difficulty report · Intercostal · Boeing 737790

Difficulty date: July 31, 2015
Submitted: August 19, 2015
Operation: Air carrier
Aircraft: N613AS
Make and model: Boeing 737790
Aircraft serial: 30163
Aircraft time: 53,531 hours, 24,214 cycles
System (JASC): 5312 · Fuselage Main, Bulkhead
Part: Intercostal
Part number: 6554862U18
Condition: Corroded
Location: Bs 1016 Bulkhead
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

AFT PRESSURE BULKHEAD LOWER INTERCOSTALS CORRODED BS 1016, LBL 0-BL 24. ACFT GROUNDED. R & R 2 EA AFT PRESSURE BULKHEAD INTERCOSTALS AT BS 1016, BL 0-LBL 24, PN 65-54862U18, PO: 845003.4 AND PN 148A2261Y17, PO: 845232.1 IAW SRM 51-40-02 AND DWG 148A0922, SHEET 11 AND SHEET 12, DOT REMOVED.