SDR ASAA2015100113438

Service difficulty report · Intercostal · Boeing 737490

Difficulty date: October 1, 2015
Submitted: October 22, 2015
Operation: Air carrier
Aircraft: N703AS
Make and model: Boeing 737490
Aircraft serial: 28893
Aircraft time: 53,972 hours, 30,578 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Part number: 65C3397257
Condition: Corroded
Location: Bs 360-380
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

FLOOR SUPPORT STRUCTURE AT APPROXIMATELY BS 360 JUST AFT OF G2 INBD GALLEY MOUNT IS CORRODED. ACFT GROUNDED. REAMED HOLE FOR NUTPLATE ON FLOOR SUPPORT STRUCTURE AT APPROXIMATELY BS 360 JUST AFT OF G-2 INBD GALLEY MOUNT TO .261, CORROSION STIL EXISTS, OUT OF LIMITS REMOVED AND INSTALLED NEW FLOOR STRUCTURE, INTERCOSTAL, IAW SRM 53-30 51-1A-1 DET III, 51-4-02-0G-0, 51-40-04-0G-0-FIG 1, TABLE 1B DWG 65-51268, W .500, O .325, R .000, L .500, D .325.